思科认证CCNP经典试题

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CCNP-思科认证题目

网络系统构建技术总复习一、不定项选择题1、在Windows 2003/2008 的TCP/IP 网络中，IP 地址有两种设定方法，它们分别是（B、D）。

A. 通过DHCP 和DNS 设定B. 通过DHCP 及人工指定C. 通过子网掩码和缺省网关给定D. 通过网络自动生成2、如果所在的局域网中存在DHCP服务器，那么在Windows平台下安装TCP/IP网络时，就可以（B ）A. 去掉IP 地址的设置B. 从DHCP 服务器中自动获得一个IP 地址C. 设置一个有效的固定IP 地址D. 任意设置一个IP 地址3、如果用户所安装的TCP/IP 网络与其他网络或与Internet 相连，则必须（D ）。

A. 设定DHCPB. 设置WINSC. 给定任意一个IP 地址D. 指定缺省网关4．在Windows 2003/2008 的TCP/IP 网络中，要求各个连网计算机的IP 地址在本域范围内（B ）。

A. 使用同一个IP 地址B. 惟一C. 任意设定D. 不惟一5、在设置静态ip 地址时，（A、C、D ）参数有时是可以不设置的。

（选择三项）A.网关B.子网掩码C.首选域名服务器D.备用域名服务器6、在邮件地址中，（B）表示域名。

（选择一项）A. MackenzreB. C.7、一台服务器准备作为网络的文件服务器，管理员正在对该服务器的硬盘进行规划。

如果用户希望读写速度最快，他应将硬盘规划为（ C ），如果用户希望对系统分区进行容错，他应将硬盘规划为（ D ），如果用户希望对数据进行容错，并保证较高的磁盘利用率，他应将硬盘规划为（ E ）。

A.简单卷B.跨区卷C.带区卷D.镜像卷E.RAID－5 卷8、使用域控制器来集中管理域账户，你安装域控制器必须具备以下条件（A、B ）。

（选择二项）A. 操作系统版本是Windows server 2003 或者Windows Server 2008B. 本地磁盘至少有一个NTFS分区C. 本地磁盘必须全部是NTFS分区D. 有相应的DNS服务器支持9、一位系统管理员在安装Windows Server 2003/2008 的过程中，在安装向导的网络设置页面中选择了“典型设置”，那么当服务器安装完成后将其连接到公司的网络，它的IP地址会（B ）。

思科认证CCNA认证试题和答案中文版

思科认证CCNA认证试题和答案中文版思科认证CCNA认证试题和答案中文版想要获得思科认证，首先要参加由思科推荐并授权的培训中心(Cisco Training Partner，简称CTP)所开设的培训课程。

完成学业后再到由全球考试机构Sylvan Prometric授权的.考试中心参加由思科指定的科目的认证考试。

通过指定的系列科目考试后，学员就可以获得相应分支系列等级的资格认证。

下面是店铺为大家搜集的相关试题，供大家参考练习。

16、路由器A串口0配置如下interface serial0link-protocol pppppp pap local-user huawei password simple quidwayip address 2.2.2.1 255.0.0.0路由器B串口及全局配置如下local-user huawei service-type ppp password simple quidway!interface serial0link-protocol pppppp authentication-mode papip address 2.2.2.2 255.0.0.0当两台路由器串口0相连时，两台路由器是否可以连接到对端()(A) 能(B) 不能答案：A17、关于千兆以太网，以下说法正确的是( )(A) IEEE802.3ab定义了千兆以太网(B) 在同一冲突域中，千兆以太网不允许中继器的互连(C) IEEE802.3z专门定义了千兆以太网在双绞线上的传输标准(D) 千兆以太网支持网络速率的自适应，可以与快速以太网自动协商传输速率答案：AB参考知识点：华为3com认证教材第一册3-8页18、高层的协议将数据传递到网络层后，形成( )，而后传送到数据链路层(A) 数据帧(B) 信元(C) 数据包(D) 数据段答案：C参考知识点：华为3com认证教材第一册1-20页19、在路由器上配置帧中继静态map必须指定( )参数(A) 本地的DLCI(B) 对端的DLCI(C) 本地的协议地址(D) 对端的协议地址答案：AD20、路由器的主要性能指标不包括( )(A) 延迟(B) 流通量(C) 帧丢失率(D) 语音数据压缩比答案：D【思科认证CCNA认证试题和答案中文版】。

思科认证CCNA认证试题与答案中文版

思科认证CCNA认证试题与答案中文版思科认证CCXA认证试题与答案中文版21、一个B类网络，有5位掩码加入缺省掩码用来划分子网，每个子网最多()台主机(A)510(B)512(C)1022(D)2046答案：D22、在路由器中，能用以下命令察看路由器的路由表()(A)arp-a(B)traceroute(C)routeprint(D)displayiprouting-table答案：D23、DHCP客户端是使用地址()来中请一个新的IP地址的(A)0. 0. 0. 0(B)10. 0. 0. 1(0127. 0. 0. 1(D)255. 255. 255. 255答案：D注释:255. 255. 255. 255是全网广播,DHCP客户端发送全网广播来查找DHCP服务器.24、下而有关NAT叙述正确的是()(A)NAT是英文“地址转换”的缩写，又称地址翻译(B)XAT用来实现私有地址与公用网络地址之间的转换(C)当内部网络的主机访问外部网络的时候，一定不需要NAT(D)地址转换的提出为解决IP地址紧张的问题提供了一个有效途径答案:ABD25、以下属于正确的主机的IP地址的是()(A)224. 0. 0.5(B)127. 32. 5. 62(0202. 112.5.0(D) 162. 111. 111. Ill答案：D注释:这个题目不是太严谨,应该加上子网掩码.A:224. 0. 0. 5是多播地址B: 127. 0.0. 0保留作为测试使用C:网络地址26、设置主接口由up转down后延迟30秒切换到备份接口，主接口由down转up后60秒钟切换回主接口的配置为()(A)standbytimer3060(B)standbytimer6030(C)standbytimerenable-delay60disable-delay30(D)standbytimerenable-delay30disable-delay60答案：D27、在一个以太网中，30台pc通过QuidwayR2501路由器s0 口连接internet, QuidwayR2501路由器配置如下：[Quidway-EthernetO] ipaddressl92. 168. 1. 1255. 255. 255. 0[Quidway-EthernetO]quit[Quidway]interfacesO[Quidway-SerialOJ ipaddress211. 136. 3. 6255. 255. 255. 252[Quidway-Serial0」link-protocolppp一台PC机默认网关为192. 168. 2.1,路由器会怎样处理发自这台PC 的数据包？(A)路由器会认为发自这一台PC的数据包不在同一网段，不转发数据包(B)路由器会自动修正这一台PC机的IP地址，转发数据包(C)路由器丢弃数据包，这时候需要重启路由器，路由器自动修正误配(D)路由器丢弃数据包，不做任何处理，需要重配PC网关为192. 168. 1. 1答案：D注释:PC的'默认网关要指向路由器的以太网口的IP地址.28、ISDNB信道速率是()(A)16kbps(B)64kbps(C)144kbps(D)2048kbps答案:B参考知识点：综合数字业务网(ISDN)由数字电话和数据传输服务两部分组成，一般由电话局提供这种服务。

思科 CCNA 学习试题答案!!!

CCNA课程测试一、单项选择题：1、介质100BaseT的最大传输距离是：( )A: 10m B:100m C:1000m D:500m2、路由器下，由一般用户模式进入特权用户模式的命令是：（）A：enable B:config C: interface D:router3、哪个命令可以成功测试网络：( )A： Router> ping 192.5.5.0B： Router# ping 192.5.5.30C： Router> ping 192.5.5.256D： Router# ping 192.5.5.2554、介质工作在OSI的哪一层（）A：物理层 B：数据链路层 C：网络层 D：传输层5、100baseT的速率是( )Mbit/sA: 1 B:10 C:100 D:10006、在启用IGRP协议时，所需要的参数是：( )A:网络掩码 B:子网号C:自治系统号 D:跳数7、基本IP访问权限表的表号范围是：( )A: 1—100 B:1-99 C:100-199 D:800-8998、查看路由表的命令是：( )A:show interface B:show run C:show ip route D:show table9、工作在OSI第三层的设备是：( )A:网卡B:路由器 C: 交换机 D:集线器10、OSI第二层数据封装完成后的名称是：( )A:比特 B: 包C:帧 D:段11、为了禁止网络210.93.105.0 ftp到网络223.8.151.0，允许其他信息传输，则能实现该功能的选项是：( )A：access-list 1 deny 210.93.105.0.0.0.0.0.0B： access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.00.0.0.255 eq ftpC：access-list 100 permit ip any anyD：access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.0 0.0.0.255 eq ftpaccess-list 100 permit ip any any12、路由器下“特权用户模式”的标识符是：( )A: > B:! C:# D: (config-if)#13、把指定端口添加到VLAN的命令是：( )A: vlan B: vlan-membership C: vtp D:switchport14、交换机工作在OSI七层模型的哪一层( )A:物理层B:数据链路层C:网络层 D:传输层15、在OSI七层模型中，介质工作在哪一层( )A:传输层 B:会话层C:物理层 D:应用层16、交换机转发数据到目的地依靠( )A:路由表B:MAC地址表 C:访问权限表 D:静态列表17、为了使配置私有IP的设备能够访问互联网，应采用的技术是( )？A:NAT B:VLAN C:ACCESS-LIST D:DDR18、VLAN主干协议VTP的默认工作模式是( )A:服务器模式 B:客户端模式 C:透明模式 D:以上三者都不是19、路由器的配置文件startup-config存放在( )里A:RAM B:ROM C:FLASH D:NVRAM20、配置路由器特权用户“加密密码”的命令是：( )A:password B:enable password C:enable secretD:passwd21、某网络中，拟设计10子网，每个子网中放有14台设备，用IP 地址段为199.41.10.X ，请问符合此种规划的子网掩码是( ) A: 255.255.255.0 B:255.255.240.0C: 255.255.255.240 D:255.248.0.022、在路由表中到达同一网络的路由有：静态路由、RIP路由、IGRP 路由，OSPF路由，则路由器会选用哪条路由传输数据：( )A:静态路由 B: RIP路由 C:IGRP路由 D:OSPF路由23、扩展IP访问权限表的表号范围是：( )A: 1—100 B:1-99 C:100-199 D:800-89924、把访问权限表应用到路由器端口的命令是：( )A: permit access-list 101 out B: ip access-group 101 out C: apply access-list 101 out D: access-class 101 out 25、混合型协议既具有“距离矢量路由协议”的特性，又具有“链路状态路由协议”的特性，下列协议中属于混合型协议的是：( ) A： RIP B： OSPF C： EIGRP D： IGRP26、在路由器上，命令show access-list的功能是（）：A:显示访问控制列表内容 B:显示路由表内容C:显示端口配置信息 D:显示活动配置文件27、RIP路由协议认为“网络不可到达”的跳数是：( )A: 8 B:16 C:24 D:10028、查看E0端口配置信息的命令是：( )A:show access-list B:show ip routeC:show version D:show interface e029、配置路由器时，封装PPP协议的命令是：( )A:encap ppp B:ppp C: group ppp D: int ppp30、路由器上“水平分割”的功能是：( )A:分离端口B：阻止路由环路 C：简化配置 D：方便故障处理31、OSI七层模型中，“包”是哪一层数据封装的名称（）A：物理层 B：数据链路层C：网络层 D：传输层32、OSI七层模型中，“段”是哪一层数据封装的名称（）A：物理层 B：数据链路层 C：网络层 D：传输层33、备份路由器IOS的命令是：( )A: copy flash tftpB: copy running-config tftpC: copy IOS tftpD: copy startup-config tftp34、PPP工作在OSI的哪一层（）A：物理层B：数据链路层 C：网络层 D：传输层35、FTP工作在OSI哪一层（）A：会话层 B：表示层 C：传输层D：应用层36、TELNET工作在OSI哪一层（）A：会话层 B：表示层 C：传输层D：应用层37、SMTP工作在OSI哪一层（）A：会话层 B：表示层 C：传输层D：应用层38、IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的子网号为（）A：192.168.50.32 B：192.168.80.64C：192.168.50.96 D：192.168.50.7139、IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的广播地址为（）A：192.168.50.32 B：192.168.80.64C：192.168.50.96 D：192.168.50.7140、IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的子网有效IP为（）A：192.168.50.33---192.168.50.39B：192.168.50.41---192.168.50.50C：192.168.50.65---192.168.50.70D：192.168.50.66---192.168.50.7541、IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP和掩码结合，共划分了多少个子网（不包括全0子网和全1子网）（）A： 8 B：30 C：6 D：1442、IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP和掩码结合划分子网时，每个子网的容量为（）A：8 B：4 C：12 D：643、网络172.12.0.0需要划分子网，要求每个子网中有效IP数为458个，为了保证子网数最大，则掩码应为（）A：255.255.255.0 B：255.255.254.0 C：255.255.0.0D：255.255.248.044、哪一个命令可以设置路由器特权用户的“明文密码”（）A：enable password B:password C:enable secretD: secret45、RIP协议的管理距离是（）A：100 B：110 C：120 D：15046、下列路由协议中，属于链路状态路由协议的是（）A：RIP B：EIGRP C：IGRP D：OSPF47、默认情况下，RIP定期发送路由更新的时间是（）A：15S B：30S C：60S D：90S48、如果网络中的路由器都是cisco路由器，则优先选择哪一个路由协议（）A：RIP B：EIGRP C：IGRP D：OSPF49、下列对RIP的配置中，合法的命令是（）A： router rip 100network 10.12.0.0B： router rip 100network 10.0.0.0C： router ripnetwork 10.12.0.0D： router rip 100network 10.0.0.050、为了查看路由器的E0端口上，是否挂接了访问权限表，应该使用的命令是（）A：show access-list B:show interface e0C: show ip interface e0 D:show e051、关于帧中继的说法，正确的是（）A：速率最大为1Mbit/s B: 不提供差错校验功能C：可以偷占带宽 D：数据传输质量高于DDN52、关于PPP和HDLC的说法中，错误的是（）A：PPP是通用协议，HDLC是CISCO私有协议B：PPP有验证功能，HDLC无验证功能C：PPP效率低，HDLC效率高D：在配置ISDN时，广域网协议不能封装成PPP，但可以封装成HDLC 53、对交换机的描述，正确的是（）A：单广播域，单冲突域的设备B：单广播域，多冲突域的设备C：多广播域，单冲突域的设备D：多广播域，多冲突域的设备54、对路由器的描述，正确的是（）A：单广播域，单冲突域的设备B：单广播域，多冲突域的设备C：多广播域，单冲突域的设备D：多广播域，多冲突域的设备55、交换机上VLAN的功能描述中，正确的是（）A：可以减少广播域的个数B：可以减少广播对网络性能的影响C: 可以减少冲突域的个数D: 可以减小冲突域的容量56、两个VLAN之间要想通信，应该使用的设备是（）A：集线器 B：二层交换机C：路由器 D：PC机57、要把交换机的配置文件保存到tftp服务器，应使用的命令为（）A：copy ios tftp B:copy running-config tftpC: copy flash tftp D:copy config tftp58、命令“ping 127.0.0.1”的功能是（）A：测试网卡是否正常 B：测试网关是否正常C：测试TCP/IP协议是否正常 D：测试介质是否正常59、路由器上的命令“show version”的功能是（）A：显示版本信息 B：显示端口配置信息 C：显示路由表D：显示路由协议信息60、路由器上激活端口的命令是（）A：shutdown B:no shutdown C: up D:no up61、某台PC，能ping通路由器，但不能telnet到路由器，可能的原因是（D ）A：PC的IP地址设置错误 B：路由器端口IP设置错误C：路由器端口处于关闭状态D：telnet密码未设置62、OSI七层模型中，网络层的数据封装名称为（）A：比特 B：帧C：包 D：段63、OSI七层模型中，物理层的数据封装名称为（）A：比特 B：帧 C：包 D：段64、OSI七层模型中，数据链路层的数据封装名称为（）A：比特B：帧 C：包 D：段65、OSI七层模型中，传输层的数据封装名称为（）A：比特 B：帧 C：包D：段66、帧中继环境下，为了区分虚电路，应该使用的地址是（）A：IP地址 B：MAC地址 C：DLCI D：IPX地址67、路由器“路由模式”的提示符号是（）A: # B: (config)# C:(config-if)# D:(config-router)# 68、EIGRP的管理距离（）A：90 B：100 C：110 D：12069、RIP协议负载均衡的路径数量为（）A：无限制 B：最多4条 C：最多5条D：最多6条70、下面有关交换机的描述中，正确的是（）A：所有交换机都支持VLAN功能B：交换机端口数量最多为48口C：交换机独占带宽D：交换机端口的最大速率为100Mbit/s71、为了阻止交换机环路，交换机上所采用的技术为（）A：水平分割 B：生成树协议 C：触发更新 D：地址学习72、帧中继环境中，CIR的含义是（）A：提高线路速率B：保证线路速率 C：降低线路速率D：配置线路速率73、路由器上端口fa0/0,其最大传输速率是（）Mbit/sA：128 B: 10 C:100 D: 100074、帧中继环境中，在物理端口上，建立子接口的命令是（）A：create B:interface C:encapsulation D:ip address 75、路由器上，命令“show int s0”的显示结果为：Serial0 is up , line protocol is down出现该结果的可能原因是（）A：端口处于关闭状态 B：物理端口被烧毁C：两端设备协议不一致 D：路由表中无路由76、如果把路由器的某个端口的IP配置为：192.168.10.64，掩码配置为：255.255.255.248，则该端口（）A：能和其他设备正常通信B：会变成“administratively down”状态C：端口被烧毁D：出现错误提示，配置命令执行失败77、网关的功能（）A：过滤数据包B：不同网段通信 C：校验数据帧D：把数据封装成“段”78、能够分配给设备的IP，应该是（）A：网络有效IP B：网络号 C：网络广播地址 D：任意IP 79、路由器“全局模式”的提示符为（）A: > B: # C: (config)# D: (config-router)#80、路由器当前的模式为“端口模式”，要退回到“特权模式”，应该使用的快捷键为（）A：ctrl+b B: ctrl+z C:ctrl+c D:ctrl+p81、下列命令中，无法正确执行的是（）A：Router(config)#show runB: Router#ping 127.0.0.1C: Router(config)#hostname ciscoD: Router#reload82、路由器上，设置端口速率的命令是（）A：clock rate B:bandwidth C:set D:encap83、路由器上，清空路由表的命令是（）A：clear ip B:delete ip route C:delete routeD: clear ip route *84、路由表中，某条路由的“路由代码为D”，则表明该路由为（）A：直连路由 B：静态路由 C：IGRP路由 D：EIGRP路由85、两台路由器直连到一起，应该使用的线缆为（）A：交叉线缆 B：直通线缆 C：反转线缆 D：任意线缆86、通过路由器的“配置端口console”对路由器进行配置，应该使用的线缆为（）A：交叉线缆 B：直通线缆C：反转线缆 D：任意线缆87、下面对Cisco2621路由器和Cisco2501路由器描述中，错误的是（）A：Cisco2621路由器的可扩展性优于Cisco2501路由器B：Cisco2621是模块化路由器C：Cisco2501上提供一个100Mbit/s的快速以太网端口D：Cisco2501是固定端口的路由器88、为了连接“帧中继”线路，网络中的路由器需要提供的端口类型为（）A：FastEthernet B:Serial C:BRI D:Ethernet89、路由器“特权模式”的提示符是：（）A：> B：# C：(config)# D: (config-if)#90、下列关于路由器和交换机的描述中，错误的是（）A：路由器可以用来连接internetB：二层交换机可以用来实现“异地网络”互连C：路由器可以用来做路径选择D：交换机可以转发广播二、多项选择题：正确答案的个数在每题的题后括号中有说明91、在路由器上，可以使用的命令有：( ) [选3个]A：ping B：show interfaces C：show ip route D：ipconfig E：wincfg92、在配置帧中继子接口时，在物理接口上应该配置的内容是：( )[选3个]A：配置IP地址B：封装帧中继协议C：指定子接口类型D：设定子接口 E：配置密码93、请选出交换机处理帧的三种模式：( )[选3个]A：直通模式 B：存储转发模式 C：侦测模式 D：分段模式E：阻塞模式94、对于IP为199.41.27.0，子网掩码为255.255.255.240，则该IP地址和子网掩码相作用会得到一系列IP，从下列选项中选出属于“有效IP”的选项：( ) [选3个]A：199.141.27.33 B：199.141.27.112 C：199.141.27.119D：199.141.27.126 E：199.141.27.175 F：199.141.27.208 95、属于私有IP段的是( )[选3个]A：10.0.0.0-10.255.255.255B：172.16.0.0-172.31.255.255 C：202.110.100.0-202.110.100.255D：192.168.0.0-192.168.255.255E：126.0.0.0-126.255.255.25596、下列哪一设备工作时，要用到OSI的七个层（一层到七层）（）[选3个]A：PC B：网管机 C：WEB服务器 D：交换机 E：路由器97、网络中经常使用DDN服务，请选出DDN的优点（）[选3个] A：传输质量高 B：接入方式灵活 C：偷占带宽D：使用虚电路E：专用线路98、网络中经常使用“帧中继”服务，请选出帧中继的优点（）[选3个]A：偷占带宽B：提供拥塞管理机制C：可以使用任意广域网协议D：灵活的接入方式99、默认情况下，IGRP衡量路径好坏时，考虑的因素为（）[选2个]A：带宽 B：可靠性 C：最大传输单元D：延时100、交换机的三大功能为（）[选3个]A：地址学习 B：转发过滤 C：消除回路 D：发送数据包。

思科认证CCNP经典试题

第一部分填空题1、在Cisco体系的IGP协议中，RIP的A-D管理距离是，EIGRP的域内A-D管理距离是，EIGRP的域外A-D管理距离是OSPF的A-D管理距离是。

BGP 从EBGP学习到的路由学到路由的A-D管理距离是; BGP从IBGP学习到的路由学到路由的A-D管理距离是。

2、BGP的默认MED值为；其中MED越越优选被用于选路；BGP从邻居哪里学到的权重为；BGP自己本路由产生的路由（始发路由）产生权重是；BGP 的默认本地优先级为：。

3、BGP的邻居分为和。

4、OSPF在那个区域（有区域0，区域1，区域2）广播多路访问（比如以太网，没有出现外部网络），在区域0可以看到类LSA。

如果想看到2类LSA，必须在网络类型；在NSSA区域可以看到类LSA，在纯粹的NASS区域内是否有5类LSA？（回答是或者否）。

5、HSRP包括哪六种状态？6、OSPF在MA网络链路类型的HELLO报文作用？（3种）7、IPV6的本地链路地址是；本地站点地址是。

（没有/10的写法）8、在选择STP的角色（身份）有哪些？，默认STP的收敛时间为。

配置了portfast后，收敛时间会小于。

9、OSPF发送hello包的组播地址是，EIGRP组播地址是；HSRP发送hello包组播地址是；VRRP发送hello 包的组播地址是。

10、目前以太通道最多可以使用条物理线缆逻辑捆绑成一个以太通道接口？形成以太通道方式有。

11、BGP在EBGP中使用属性避免AS间的环路（确保无环），该属性属于BGP的间的环路（确保无环）必遵属性，其中还有哪两个是BGP公认必遵属性为和。

第二部分选择1、在对基于CEF的多层交换（MLS）进行排错的时候，例如解决无法到达特定的IP目标等问题，首先需要先查看哪两张表去验证错误？（）A、IP路由表和路由表B、IP路由和CEF邻接关系表C、TCAM中的IP CEF FIB和邻接关系表D、IP路由表和ARP表2、EIGRP位一个混合距离矢量协议，位一个混合距离矢量协议，在在METRIC值中使用K1-K5五个K值，默认情况下，使用K值分别是（）A、K1，K2 B K3,K4 C、K1，K5 D、K1，K3 3、OSPF中router-id能标识一台设备的身份，下面说法正确的是（）A、先选举手工配置，然后选择设备loopback地址大的，在选运行了宣告进OSPF最大的物理接口最大的地址。

思科CCNA第三学期官方试题(完整版)[有答案解析]

参加考试 - ESwitching Final Exam - CCNA Exploration: LAN 交换和无线 (版本 4.0)剩余时间正在显示第 1 页，共 4页下一页>页跳转<上一页1 以下哪项参数用于唯一标识一个无线网络，使其与其它网络区分开来？SSID OFDMWEPDSSS2 分层网络模型具有哪三项优点？（选择三项。

）带宽争用现象减少物理布局范围减小网络的容错能力提高无需配线间无需第三层功能管理和故障排除工作简化3在将 Catalyst 交换机迁移到其它 VTP 管理域之前，应该进行哪三项任务？（选择正确的 VTP 模式和版本。

使用新管理域的名称配置交换机。

从新域中的 VTP 服务器上下载 VTP 数据库。

配置新域内的 VTP 服务器，使其识别该交换机的 BID。

重置 VTP 计数器，使交换机可与新域内的其它交换机同步。

检验交换机的配置修订版号是否比新域内的其它交换机的低。

4下列哪两种说法正确地描述了生成树协议？（选择两项。

）它只在第 2 层使用。

它在交换机上配置。

它消除了网络拓扑中的第 2 层环路。

它限制了端口上所允许的有效 MAC 地址的数量。

它使 VLAN 信息得以传播到网络中的其它交换机。

5下列哪种方法可建立用于配置 Linksys WRT300N 无线接入点的管理连接？与接入点关联，然后与接入点建立超级终端会话。

以物理方式连接到接入点，然后重新启动计算机以启动配置软件。

在接入点所在的 IP 子网内的计算机上的 web 浏览器中输入接入点的默认修改与接入点连接的计算机的 TCP/IP 属性，使其与接入点处于同一个网机以建立连接。

6请参见图示。

源地址并非 0019.d2e4.d9f7 的帧进入接口 Fa0/24 时会发生什么情况？Fa0/24 会变为 error-disabled（错误-禁用）状态。

传入帧会被丢弃。

Fa0/24 端口 LED 会关闭。

安全违规计数会增加。

CCNP级别网络工程师面试题

CCNP级别网络工程师面试题1、解决路由环问题的方法有(ABD)A. 水平分割B. 路由保持法C. 路由器重启D. 定义路由权的最大值2、下面哪一项正确描述了路由协议(C)A. 允许数据包在主机间传送的一种协议B. 定义数据包中域的格式和用法的一种方式C. 通过执行一个算法来完成路由选择的一种协议D. 指定MAC地址和IP地址捆绑的方式和时间的一种协议3、以下哪些内容是路由信息中所不包含的(A)A. 源地址B. 下一跳C. 目标网络D. 路由权值4、以下说法那些是正确的(BD)A. 路由优先级与路由权值的计算是一致的B. 路由权的计算可能基于路径某单一特性计算，也可能基于路径多种属性C. 如果几个动态路由协议都找到了到达同一目标网络的最佳路由，这几条路由都会被加入路由表中D. 动态路由协议是按照路由的路由权值来判断路由的好坏，并且每一种路由协议的判断方法都是不一样的5、IGP的作用范围是(C)A. 区域内B. 局域网内C. 自治系统内D. 自然子网范围内6、距离矢量协议包括(AB)A. RIPB. BGPC. IS-ISD. OSPF7、关于矢量距离算法以下那些说法是错误的(A)A. 矢量距离算法不会产生路由环路问题B. 矢量距离算法是靠传递路由信息来实现的C. 路由信息的矢量表示法是(目标网络，metric)D. 使用矢量距离算法的协议只从自己的邻居获得信息8、如果一个内部网络对外的出口只有一个，那么最好配置(A)A. 缺省路由B. 主机路由C. 动态路由9、BGP是在(D)之间传播路由的协议A. 主机B. 子网C. 区域(area)D. 自治系统(AS)10、在路由器中，如果去往同一目的地有多条路由，则决定最佳路由的因素有(AC)A. 路由的优先级B. 路由的发布者C. 路由的metirc值D. 路由的生存时间11、在RIP协议中，计算metric值的参数是(D)A. MTUB. 时延C. 带宽D. 路由跳数12、路由协议存在路由自环问题（A）A. RIPB. BGPC. OSPFD. IS-IS13、下列关于链路状态算法的说法正确的是:(bc )A. 链路状态是对路由的描述B. 链路状态是对网络拓扑结构的描述C. 链路状态算法本身不会产生自环路由D. OSPF和RIP都使用链路状态算法14、在OSPF同一区域(区域A)内，下列说法正确的是(d )A. 每台路由器生成的LSA都是相同的B. 每台路由器根据该最短路径树计算出的路由都是相同的C. 每台路由器根据该LSDB计算出的最短路径树都是相同的D. 每台路由器的区域A的LSDB(链路状态数据库)都是相同的15、在一个运行OSPF的自治系统之内:(ad )A. 骨干区域自身也必须是连通的B. 非骨干区域自身也必须是连通的C. 必须存在一个骨干区域 ( 区域号为0 )D. 非骨干区域与骨干区域必须直接相连或逻辑上相连16、下列关于OSPF协议的说法正确的是:(abd )A. OSPF支持基于接口的报文验证B. OSPF支持到同一目的地址的多条等值路由C. OSPF是一个基于链路状态算法的边界网关路由协议D. OSPF发现的路由可以根据不同的类型而有不同的优先级17、禁止 RIP 协议的路由聚合功能的命令是(c )A. undo ripB. auto-summanyC. undo auto-summanyD. undo network 10.0.0.018、下列静态路由配置正确的是(d)A. ip route 129.1.0.0 16 serial 0B. ip route 10.0.0.2 16 129.1.0.0C. ip route 129.1.0.0 16 10.0.0.2D. ip route 129.1.0.0 255.255.0.0 10.0.0.219、以下不属于动态路由协议的是(d)A. RIPB. ICMPC. IS-ISD. OSPf20、三种路由协议RIP 、OSPF 、BGP和静态路由各自得到了一条到达目标网络，在华为路由器默认情况下，最终选选定(b) 路由作为最优路由A. RIPB. OSPFC. BGPD. 静态路由21、IGP 包括如下哪些协议(acd)A. RIPB. BGPC. IS-ISD. OSPF22、路由环问题会引起(abd )A. 慢收敛B. 广播风暴C. 路由器重起D. 路由不一致23、以下哪些路由表项要由网络管理员手动配置(a )A. 静态路由B. 直接路由C. 动态路由D. 以上说法都不正确24、在运行Windows98的计算机中配置网关，类似于在路由器中配置(a)A. 直接路由B. 默认路由C. 动态路由D. 间接路由25、关于RIP协议，下列说法正确的有:(ac )A. RIP协议是一种IGPB. RIP协议是一种EGPC. RIP协议是一种距离矢量路由协议D. RIP协议是一种链路状态路由协议关于19题：根据路由算法，动态路由协议可分为距离向量路由协议（Distance Vector Routing Protocol）和链路状态路由协议（Link State Routing Protocol）。

思科CCNA考证习题答案

1. what could be possible causes for the "Serial0/0 is down"interface status? 这可能是为“Serial0 / 0的可能原因是向下”接口的状态？TWOA.a layer 1 problem exists.1层存在问题D.an incorrect cable is being used。

2.before installing a new,upgraded version of the ios,what should be checked on the router,and which command should be used to gather this information?在安装一个新的，升级的IOS版本，应该怎样检查路由器上，并命令应该被用来收集这些资料？B.the amount of avaiable flash and ram 缴费的闪存和RAM的数量D.show version 显示版本3.refer to the exhibit. which two statements are true about inter VLAN routing in the topology that is shown in the exhibit?（choose two）指展览。

这两个语句是对国际米兰的是在展会上展出的拓扑路由的VLAN是否属实？D. the FastEthernet 0/0 inerface on router1 must be configured with subinterfaces.关于路由器1的在FastEthernet 0/0 inerface 必须配置子接口F.the FastEthernet 0/0 interface on router1 and switch2 trunk ports must be configured using the same encapsulation type. 对在FastEthernet 0/0 接口上路由器1和交换器2中继端口必须配置使用相同的封装类型。

CCNA认证试题(中文+答案)

CCNA认证试题一（附答案和解析）中文版(一)1、目前，我国应用最为广泛的LAN标准是基于（）的以太网标准.(A) IEEE 802.1(B) IEEE 802.2(C) IEEE 802.3(D) IEEE 802.5答案：C参考知识点：现有标准：IEEE 802.1 局域网协议高层IEEE 802.2 逻辑链路控制IEEE 802.3 以太网IEEE 802.4 令牌总线IEEE 802.5 令牌环IEEE 802.8 FDDIIEEE 802.11 无线局域网记住IEEE802.1-------IEEE802.5的定义以太网是一种计算机局域网组网技术。

IEEE制定的IEEE 802.3标准给出了以太网的技术标准。

它规定了包括物理层的连线、电信号和介质访问层协议的内容。

以太网是当前应用最普遍的局域网技术。

它很大程度上取代了其他局域网标准，如令牌环、FDDI和ARCNET。

以太网的标准拓扑结构为总线型拓扑，但目前的快速以太网（100BASE-T、1000BASE-T标准）为了最大程度的减少冲突，最大程度的提高网络速度和使用效率，使用交换机（Switch）来进行网络连接和组织，这样，以太网的拓扑结构就成了星型，但在逻辑上，以太网仍然使用总线型拓扑的C***A/CD介质访问控制方法。

电气电子工程师协会或IEEE（Institute of Electrical and Electronics Engineers）是一个国际性的电子技术及信息科学工程师的协会。

建会于1963年1月1日。

总部在美国纽约市。

在150多个国家中它拥有300多个地方分会。

目前会员数是36万。

专业上它有35个专业学会和两个联合会。

IEEE发表多种杂志，学报，书籍和每年组织300多次专业会议。

IEEE定义的标准在工业界有极大的影响。

下面列出：IEEE802．3以太网标准802.3--------- 10Base以太网标准802.3u-------- 100Base-T（快速以太网）802.3z-------- 1000Base-X（光纤吉比特以太网）802.3ab-------- 1000Base-T（双绞线吉比特以太网）2、对于这样一个地址,192.168.19.255/20,下列说法正确的是: （）(A) 这是一个广播地址(B) 这是一个网络地址(C) 这是一个私有地址(D) 地址在192.168.19.0网段上(E) 地址在192.168.16.0网段上(F) 这是一个公有地址答案：CE注：IP地址中关键是看她的主机位，将子网掩码划为二进制，1对应上面的地址是网络位，0对应的地址是主机位192.168.19.255/20划为二进制为：11000000.10101000.00010011.1111111111111111.11111111.11110000.00000000主机位变成全0表示这个IP的网络地址主机槐涑扇?表示这个IP的广播地址RFC1918文件规定了保留作为局域网使用的私有地址：10.0.0.0 - 10.255.255.255(10/8 prefix)172.16.0.0 - 172.31.255.255 (1 72.16/12 prefix)192.168.0.0 - 192.168.255.255 (192.168/16 prefix)3、Quidway系列路由器在执行数据包转发时，下列哪些项没有发生变化（假定没有使用地址转换技术）？（）(A) 源端口号(B) 目的端口号(C) 源网络地址(D) 目的网络地址(E) 源MAC地址(F) 目的MAC地址答案：ABCD参考知识点：路由功能就是指选择一条从源网络到目的网络的路径，并进行数据包的转发。

ccnp的试题全中文

CCNP级别网络工程师面试题1、解决路由环问题的方法有(ABD) A.水平分割 B.路由保持法 C.路由器重启D.定义路由权的最大值2、下面哪一项正确描述了路由协议(C) A.允许数据包在主机间传送的一种协议 B.定义数据包中域的格式和用法的一种方式C.通过执行一个算法来完成路由选择的一种协议D.指定MAC地址和IP地址捆绑的方式和时间的一种协议3、以下哪些内容是路由信息中所不包含的(A) A.源地址 B.下一跳 C.目标网络D.路由权值4、以下说法那些是正确的(BD)A.路由优先级与路由权值的计算是一致的B.路由权的计算可能基于路径某单一特性计算，也可能基于路径多种属性C.如果几个动态路由协议都找到了到达同一目标网络的最佳路由，这几条路由都会被加入路由表中D.动态路由协议是按照路由的路由权值来判断路由的好坏，并且每一种路由协议的判断方法都是不一样的5、IGP的作用范围是(C) A.区域内 B.局域网内 C.自治系统内 D.自然子网范围内6、距离矢量协议包括(AB) A.RIP B.BGP C.IS-IS D.OSPF7、关于矢量距离算法以下那些说法是错误的(A) A.矢量距离算法不会产生路由环路问题 B.矢量距离算法是靠传递路由信息来实现的C.路由信息的矢量表示法是(目标网络，metric)D.使用矢量距离算法的协议只从自己的邻居获得信息求职胜经/简历亮出你的精彩简历写作技巧，...面试前准备才是...8、如果一个内部网络对外的出口只有一个，那么最好配置(A) A.缺省路由 B.主机路由 C.动态路由9、BGP是在(D)之间传播路由的协议 A.主机 B.子网C.区域(area)D.自治系统(AS)10、在路由器中，如果去往同一目的地有多条路由，则决定最佳路由的因素有(AC) A.路由的优先级 B.路由的发布者 C.路由的metirc值 D.路由的生存时间11、在RIP协议中，计算metric值的参数是(D) A.MTU B.时延 C.带宽D.路由跳数12、路由协议存在路由自环问题（A） A.RIP B.BGP C.OSPF D.IS-IS13、下列关于链路状态算法的说法正确的是:(bc) A.链路状态是对路由的描述B.链路状态是对网络拓扑结构的描述C.链路状态算法本身不会产生自环路由D.OSPF 和RIP都使用链路状态算法14、在OSPF同一区域(区域A)内，下列说法正确的是(d) A.每台路由器生成的LSA都是相同的B.每台路由器根据该最短路径树计算出的路由都是相同的C.每台路由器根据该LSDB计算出的最短路径树都是相同的 D.每台路由器的区域A的LSDB(链路状态数据库)都是相同的15、在一个运行OSPF的自治系统之内:(ad) A.骨干区域自身也必须是连通的 B.非骨干区域自身也必须是连通的C.必须存在一个骨干区域(区域号为0)D.非骨干区域与骨干区域必须直接相连或逻辑上相连16、下列关于OSPF协议的说法正确的是:(abd) A.OSPF支持基于接口的报文验证B.OSPF支持到同一目的地址的多条等值路由C.OSPF是一个基于链路状态算法的边界网关路由协议D.OSPF发现的路由可以根据不同的类型而有不同的优先级17、禁止RIP协议的路由聚合功能的命令是(c) A.undo rip B.auto-summanyC.undo auto-summanyD.undo network10.0.0.018、下列静态路由配置正确的是(d) A.ip route129.1.0.016serial0 B.ip route10.0.0.216129.1.0.0 C.ip rout e129.1.0.01610.0.0.2D.ip route129.1.0.0255.255.0.010.0.0.219、以下不属于动态路由协议的是(d) A.RIP B.ICMP C.IS-ISD.OSPf20、三种路由协议RIP、OSPF、BGP和静态路由各自得到了一条到达目标网络，在华为路由器默认情况下，最终选选定(b)路由作为最优路由 A.RIP B.OSPF C.BGPD.静态路由21、IGP包括如下哪些协议(acd) A.RIP B.BGP C.IS-IS D.OSPF22、路由环问题会引起(abd) A.慢收敛 B.广播风暴 C.路由器重起D.路由不一致23、以下哪些路由表项要由网络管理员手动配置(a) A.静态路由B.直接路由C.动态路由D.以上说法都不正确24、在运行Windows98的计算机中配置网关，类似于在路由器中配置(a) A.直接路由 B.默认路由 C.动态路由 D.间接路由25、关于RIP协议，下列说法正确的有:(ac) A.RIP协议是一种IGP B.RIP协议是一种EGPC.RIP协议是一种距离矢量路由协议D.RIP协议是一种链路状态路由协议欢迎您的下载，资料仅供参考！致力为企业和个人提供合同协议，策划案计划书，学习资料等等打造全网一站式需求。

ccnp考试试题

ccnp考试试题CCNP考试试题CCNP（Cisco Certified Network Professional）是思科公司颁发的网络专业认证，是全球范围内最受欢迎的网络工程师认证之一。

CCNP考试试题涵盖了网络基础知识、路由与交换、安全、无线网络等多个领域。

本文将从几个不同的角度探讨CCNP考试试题，帮助考生更好地了解考试内容和备考方法。

一、网络基础知识网络基础知识是CCNP考试的重要组成部分，涉及到网络的基本概念、协议、拓扑结构等内容。

考生需要掌握TCP/IP协议族、子网划分、网络地址转换（NAT）等知识点。

此外，对于网络设备的功能和特点，如路由器、交换机、防火墙等，也需要有一定的了解。

二、路由与交换路由与交换是CCNP考试的核心内容，考生需要掌握路由协议、交换技术、网络拓扑设计等知识。

常见的路由协议有RIP、OSPF、EIGRP、BGP等，考生需要了解它们的特点、工作原理和配置方法。

此外，对于交换技术，如VLAN、STP、EtherChannel等，也需要熟悉其原理和配置。

三、安全网络安全是当今互联网时代的重要议题，也是CCNP考试的一部分。

考生需要了解网络安全的基本概念、攻击类型、防御策略等。

常见的安全技术有防火墙、VPN、入侵检测系统（IDS）、入侵防御系统（IPS）等，考生需要了解它们的原理和配置方法。

四、无线网络无线网络是现代网络的重要组成部分，也是CCNP考试的考点之一。

考生需要了解无线网络的基本原理、标准、安全性等。

对于无线网络的配置和故障排除，考生需要熟悉无线控制器、轻量级接入点（LWAP）、无线局域网控制器（WLC）等设备的使用方法。

五、备考方法备考CCNP考试需要一定的计划和方法。

首先，考生可以通过官方网站了解考试大纲和参考书籍，明确考试内容和重点。

其次，可以通过参加培训班或自学的方式进行知识的学习和理解。

同时，做一些练习题和模拟考试，提高解题能力和应试技巧。

最后，要保持良好的心态和充足的复习时间，做好充分的准备。

思科认证考试(CCNA)考试模拟题集锦(1-71题)及答案

思科认证考试（ＣＣＮＡ）考试模拟题集锦(1-71题)及答案19及答案1. [OxNx] During a TFTP transfer using Cisco Routers what is the numeric value, in decimal, of the destination port field of the User Datagram Protocol (UDP) header? a) 96b) 47c) a random number above 1024d) 69e) none of the above2. [CxNx] What is the standard encapsulation method used by Cisco routers for the Internet Protocol (IP) on it’s Ethernet interfaces?a) SNAPb) ARPAc) NOVELL-ETHERd) DARPAe) Ethernet_802.33. [CxNx] What will be the correct command on a Cisco router to set the IP address of an interface assuming you are at the "router(config-if)#" prompt?a) ip address 1.1.1.1 255.255.255.0b) ip address 1.1.1.1c) ip 1.1.1.1d) ip 1.1.1.1 255.255.255.0e) none of the above4. [CxNx] Which commands will display the IP addresses of all interfaces on a Cisco Router? (Choose all that apply)a) show ip routeb) show ip addressc) show ip interfaced) show interfacee) display ip addresses5. [CxNx] Which of the following commands will display the contents of the ARP cache of your Cisco router?a) show ip arp cacheb) show ip routec) show ip arpd) show arpe) there is no way to display the ARP cache6. [CxNx] Reverse Address Resolution Protocol (RARP) is the process:a) Where an I P host resolves it’s IP address by broadcasting it’s MAC address to the network and a BOOTP server assigns it an IP address.b) Where an IP host resolves it’s MAC address by broadcasting to the local network it’s IP address.c) Where an IP host tries to resolve the MAC address of a destination by sending a network broadcast. The destination responds to the broadcast with it’s MAC address.d) Where an IP host resolves a destination IP address by sending a broadcast on the local network and the destination host responds with it’s IP address.e)There is no such process.7. [OxNx] Which of the following applications requires the connection-oriented layer four protocol, TCP? (Choose all that apply)a) Telnetb) FTPc) TFTPd) SNMPe) none of the above8. [RxNx] Which of the following are link state Routing Protocols.(Choose all that apply.)a) IPb) OSPFc) RIPd) EIGRPe) IS-IS9. [CxNx] Of the following commands, identify the correct one for clearing the IP arp table in memory of the router.a) clear ip arp-cacheb) clear ip arp-tablec) clear arp-cached) clear arp-tablee) clear arp-ram10. [CxNx] Which of the following explains the correct definition of administrative distance as it pertains to Cisco’s IOS?a) The process by which routers select an administrator for an autonomous system.b) The process where a router will select the best path to a destination network.c) The process where a router will distance itself from other routers due to it’s lack of administrative experience.d) The process where a router will prioritize routing protocols so that in the event two routing protocols have conflicting next hop addresses, the routing protocol with the lowest administrative distance will take priority.e) The process where a router will prioritize routing protocols so that in the event two routing protocols have conflicting next hop addresses, the routing protocol with the highest administrative distance will take priority.11. [ExNx] Collisions occur whena) multiple packets are placed on a serial linkb) multiple stations listen for traffic and transmit at the same timec) when multiple tokens are on a ring simultaneouslyd) beaconing process takes place12. [RINx] How many subnets are possible with a Class C address and a subnet mask of 255.255.255.252?a) 32b) 30c) 60d) 62e) 413. [RxNx] What commands will list all protocols that are currently being routed? (Choose all that apply.)a) show ip protocolb) show protocolc) show rund) show starte) All of the above14. [xxNx] Which of the following are true of access lists?a) Access list should have at least one permit statement.b) The last configured line should always be a permit statement.c) Every access-list will implicitly deny all traffic.d) Access-lists are processed top down.e) All of the above.15. [xxNx] If the access-group command is configured on an interface and there is no access-list created which of the following is most correct?a) An error message will appear.b) The command will be executed and deny all traffic out.c) The command will be executed and permit all traffic out.d) The command will be executed and permit all traffic in and out.e) The command will be executed and deny all traffic in and out.16. [xxNx] What is the result of the command?" access-list 101 permit tcp any 172.16.0.0 0.0.255.255 established"a) telnet sessions will be permitted regardless of the source addressb) telnet sessions will be denied regardless of the source addressc) telnet sessions will be denied if initiated from any address other than 172.16.0.0 networkd) telnet sessions will be permitted to the 172.16.0.0 network onlye) telnet sessions will be denied to the 172.16.0.0 network only17. [xxNx] Which is generally true of the location of access-lists? (Choose all that apply.)a) Standard lists will most likely be placed close to the destination.b) Standard lists will most likely be placed close to the source.c) Extended lists will most likely be placed close to the destination.d) Extended lists will most likely be placed close to the source.e) It does not matter.18. [RxNx] Which of the following is most correct?a) IP is to TCP. as IPX is to SPX.b) RTMP is to Appletalk as IP RIP is to IP.c) NLSP is to IPX as OSPF is to IP.d) a is true.e) b is true.f) a & b are true.g) c is true.h) b & c are true.i) a, b and c are true.19. [ExNx] If Host A sends a packet to Host B over ethernet and Host B is not active:a) The packet will time out.b) The packet will be removed by Host A.c) The NVRAM of Host B will remove the packet.d) The packet will "die" when it reaches the terminator.e) The packet will be removed by the token monitor.Coding Key and InformationThe first character represents the category of question.A - ATMB - BridgingC - Cisco specificE - EthernetF - Frame relayH - HDLCI - FDDIN - ISDNO - OSI modelP - PPPR - RoutingS - SwitchingT - Token ringX - X.25x - Not applicableThe second character represents protocol.A - AppletalkB - Banyan VinesD - DecnetI - IPL - Dial on DemandN - NLSPO - OSPFX - IPXx - Not ApplicableThe third character represents the certification that the question will help you prepare for.N - CCNA Exam #640-407P - CCNPAdvanced Cisco Router Configuration (ACRC) Exam 640-403Cisco LAN Switch Configuration (CLSC) Exam #640-404Cisco Monitoring and Troubleshooting Dial-up Services Exam #640-405Cisco Internetworking Troubleshooting ( CIT) Exam #640-406D - CCDA & CCDPCisco Design Specialist Exam #9E0-004Cisco Internetwork Design#640-025We will reserve the fourth character for future use.As an example, when you come across a question coded "BXDx", it signifies a question that will help you gain the CCDA or CCDP certification.CCNA试题1-19答案1. [OxNx] During a TFTP transfer using Cisco Routers what is the numeric value, in decimal, of the destination port field of the User Datagram Protocol (UDP) header?a) 96b) 47c) a random number above 1024d) 69e) none of the aboveAnswerd) 69Here is a sampling of other port numbers and the application they are associated with. The first 8 of these protocols are automatically forwarded through the router by using the helper-address commandTrivial File Transfer (TFTP) (port 69)Domain Name System (port 53)IEN-116 Name Server (port 42)Time service (port 37)NetBIOS Name Server (port 137)NetBIOS Datagram Server (port 138)Boot Protocol (BootP) client and server datagrams (port 67)TACACS service (port 49)Simple Mail Transfer Protocol (25)File Transfer Protocol (21)Simple Network Management Protocol (161)2. [CxNx] What is the standard encapsulation method used by Cisco routers for the Internet Protocol (IP) on it’s Ethernet interfaces?a) SNAPb) ARPAc) NOVELL-ETHERd) DARPAe) Ethernet_802.3Answerb) ARPASNAP is the default encapsulation for a token ring interface NOVELL-ETHER is the default encapsulation for a ipx interface.3. [CxNx] What will be the correct command on a Cisco router to set the IP address of an interface assuming you are at the "router(config-if)#" prompt?a) ip address 1.1.1.1 255.255.255.0b) ip address 1.1.1.1c) ip 1.1.1.1d) ip 1.1.1.1 255.255.255.0e) none of the aboveAnswera) ip address 1.1.1.1 255.255.255.0If you are not in the configuration mode, the ip address can be set by using the setup mode.Configuring interface Ethernet0/0:Is this interface in use? [yes]:Configure IP on this interface? [yes]:IP address for this interface [10.10.10.1]: 10.10.10.1Number of bits in subnet field [16]: 16Class A network is 10.0.0.0, 16 subnet bits; mask is /24Take note when using the setup mode the mask is configured using the number of subnet bits.4. [CxNx] Which commands will display the IP addresses of all interfaces on a Cisco Router? (Choose all that apply)a) show ip routeb) show ip addressc) show ip interfaced) show interfacee) display ip addressesAnswerc) show ip interfaced) show interfaceExamples of each of these commands are shown below: Router_A#sh int e0/0Ethernet0/0 is up, line protocol is upHardware is AmdP2, address is0010.7b15.bd41(bia 0010.7b15.bd41)Internet address is 10.10.10.1/24MTU 1500 bytes, BW 10000 Kbit,DLY 1000 usec,rely 255/255, load 1/255Encapsulation ARPA, loopback not set,keepalive set (10 sec)ARP type: ARPA, ARP Timeout 04:00:00Last input never, output 00:00:06,output hang neverLast clearing of "show interface"counters neverQueueing strategy: fifoOutput queue 0/40, 0 drops;input queue 0/75,0 drops5 minute input rate 0 bits/sec,0 packets/sec5 minute output rate 0 bits/sec,0 packets/sec0 packets input, 0 bytes,0 no bufferReceived 0 broadcasts, 0 runts,0 giants,0 throttles, 0 input errors, 0 CRC,0 frame, 0 overrun, 0 ignored,0 abort0 input packets with dribblecondition detected127 packets output, 11802 bytes,0 underruns0 output errors, 0 collisions,2 interface resets0 babbles, 0 late collision,0 deferred0 lost carrier, 0 no carrier0 output buffer failures, 0 outputbuffers swapped outRouter_A#sh ip int e0/0Ethernet0/0 is up, line protocol is upInternet address is 10.10.10.1/24Broadcast address is 255.255.255.255Address determined bynon-volatile memoryMTU is 1500 bytesHelper address is not setDirected broadcast forwarding is enabledOutgoing access list is not setInbound access list is not setProxy ARP is enabledSecurity level is defaultSplit horizon is enabledICMP redirects are always sentICMP unreachables are always sentICMP mask replies are never sentIP fast switching is enabledIP fast switching on the sameinterface is disabledIP multicast fast switching is enabledRouter Discovery is disabledIP output packet accounting is disabledIP access violation accounting isdisabledTCP/IP header compression is disabledProbe proxy name replies are disabledGateway Discovery is disabledPolicy routing is disabledNetwork address translation is disabled5. [CxNx] Which of the following commands will display the contents of the ARP cache of your Cisco router?a) show ip arp cacheb) show ip routec) show ip arpd) show arpe) there is no way to display the ARP cacheAnswerc) show ip arpExample:Router_A#sh ip arpProtocol Address Age(min) Hardware Address Type InterfaceInternet 1.1.1.2 - 0010.7b15.bd50 ARPA FastEthernet1/0Internet 10.10.10.1 - 0010.7b15.bd41 ARPA Ethernet0/06. [CxNx] Reverse Address Resolution Protocol (RARP) is the process:a) Where an IP host resolves it’s IP address by broadcasting it’s MAC address to the network a nd a BOOTP server assigns it an IP address.b) Where an IP host resolves it’s MAC address by broadcasting to the local network it’s IP address.c) Where an IP host tries to resolve the MAC address of a destination by sending a network broadcast. The dest ination responds to the broadcast with it’s MAC address.d) Where an IP host resolves a destination IP address by sending a broadcast on the local network and the destination host responds with it’s IP address.e)There is no such process.Answera) Whe re an IP host resolves it’s IP address by broadcasting it’s MAC address to the network and a BOOTP server assigns it an IP address.Choice C describes Address Resolution Protocol (ARP). A host never has to resolve it’s own MAC address. The MAC address is burned into the Network Interface card. When the host is booted the MAC address will be loaded into memory.7. [OxNx] Which of the following applications requires the connection-oriented layer four protocol, TCP? (Choose all that apply)a) Telnetb) FTPc) TFTPd) SNMPe) none of the aboveAnswera) Telnetb) FTPTFTP and SNMP use layer 4 UDP.8. [RxNx] Which of the following are link state Routing Protocols.(Choose all that apply.)a) IPb) OSPFc) RIPd) EIGRPe) IS-ISAnswerb) OSPFe) IS-ISA link state routing protocol advertises, to it’s neighbors, the state of the link when the state of the link changes.A distance vector routing protocol advertises its routing table periodically.9. [CxNx] Of the following commands, identify the correct one for clearing the IP arp table in memory of the router.a) clear ip arp-cacheb) clear ip arp-tablec) clear arp-cached) clear arp-tablee) clear arp-ramAnswerc) clear arp-cacheIf you have changed an ip address or a NIC card on a host you might use this command to reset the cache.10. [CxNx] Which of the following explains the correct definition of administrative distance as it pertains to Cisco’s IOS?a) The process by which routers select an administrator for an autonomous system.b) The process where a router will select the best path to a destination network.c) The process where a router will distance itself from other routers due to it’s lack of administrative experience.d) The process where a router will prioritize routing protocols so that in the event two routing protocols have conflicting next hop addresses, the routing protocol with the lowest administrative distance will take priority.e) The process where a router will prioritize routing protocols so that in the event two routing protocols have conflicting next hop addresses, the routing protocol with the highest administrative distance will take priority.Answerd) The process where a router will prioritize routing protocols so that in the event two routing protocols have conflicting next hop addresses, the routing protocol with the lowest administrative distance will take priority.Cisco uses administrative distances (AD) to measure the reliability of the routing protocol. The lower the (AD) the more reliable the protocol.Router_C#sh ip routeCodes: C - connected, S - static,I - IGRP, R - RIP,M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF,IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPFNSSA external type 2E1 - OSPF external type 1,E2 - OSPF external type 2,E - EGPi - IS-IS, L1 - IS-IS level-1,L2 - IS-IS level-2, * -candidate defaultU - per-user static route, o - ODRGateway of last resort is not set172.16.0.0/24 is subnetted, 2 subnetsC 172.16.1.0 is directly connected,Serial1C 172.16.2.0 is directly connected,Serial0I 10.0.0.0/8 [100/8576] via 172.16.1.1,00:00:09, Serial1[100/8576] via 172.16.2.1, 00:00:19,Serial0The 100 in bold is the administrativedistance for IGRP.A partial list of administrative distances is included below:Protocol ADEIGRP 90IGRP 100OSPF 110RIP 120BGP 180If a router hears a IP RIP and a IGRP update for the same network the router will discard the rip information. IP RIP uses hop count as it’s metric, while IGRP uses a composite metric including bandwidth and load, speed is the primary consideration.11. [ExNx] Collisions occur whena) multiple packets are placed on a serial linkb) multiple stations listen for traffic and transmit at the same timec) when multiple tokens are on a ring simultaneouslyd) beaconing process takes placeAnswerb) multiple stations listen for traffic and transmit at the same timeCollisions is a term that is used in an ethernet environment. Ethernet can be described as a listen then transmit scenario. First a station will listen for traffic if no traffic is sensed then a transmission will take place. If two stations transmit at the same time collisions will occur. The first station to detect the collision sends out a jamming signal to alert all stations a collision has occurred. At this point these stations set up a random interval timer when the timer expires re-transmission will occur.Token ring is a token passing process a station can transmit only when he has the token. There never can be multiple tokens on the ring. Early token release allows up to two data frames to be transmitted on a token ring LAN at the same time. Collisions do not occur on a token ring.Because of the point to point nature of serial links collisions do not occur.Beaconing is a term used in a token passing environment.12. [RINx] How many subnets are possible with a Class C address and a subnet mask of 255.255.255.252?a) 32b) 30c) 60d) 62e) 4Answerd) 62The above mask is using 6 bits to describe subnets. The formula used to determine the number of subnets (not including the all 0’s or all 1’s subnet) is 2n - 2 were n is the number of subnet bits. This is the number to use when configuring a ip address with the setup dialog.13. [RxNx] What commands will list all protocols that are currently being routed? (Choose all that apply.)a) show ip protocolb) show protocolc) show rund) show starte) All of the aboveAnswerb) show protocolc) show runShow ip protocol will show just the ip routing protocols that are currently configured. Show start may or may not show the current routed protocols.Below is the output of show protocolRouter_B#show protocolGlobal values:Internet Protocol routing is enabledAppletalk routing is enabledBRI0 is administratively down, line protocol is downBRI0:1 is administratively down, line protocol is downBRI0:2 is administratively down, line protocol is downSerial0 is administratively down, line protocol is downSerial1 is administratively down, line protocol is downSerial2 is administratively down, line protocol is downSerial3 is administratively down, line protocol is downTokenRing0 is administratively down, line protocol is down14. [xxNx] Which of the following are true of access lists?a) Access list should have at least one permit statement.b) The last configured line should always be a permit statement.c) Every access-list will implicitly deny all traffic.d) Access-lists are processed top down.e) All of the above.Answere) All of the above.Every access list has an implicit deny all at the end. What would the need be to create a access list with just deny statements. Access-list are processed from the top down therefore the order of each statement could be critical, for instance suppose you created an access list and the first line was a permit any and the next line was a deny. Since it’s top down processing a packet would be permitted to pass on the first line and the second line would never be executed. An extended list will give you a "match count" that will help in determining what the most efficient order should be.15. [xxNx] If the access-group command is configured on an interface and there is no access-list created which of the following is most correct?a) An error message will appear.b) The command will be executed and deny all traffic out.c) The command will be executed and permit all traffic out.d) The command will be executed and permit all traffic in and out.e) The command will be executed and deny all traffic in and out.d) The command will be executed and permit all traffic in and out.There are two steps to use an access list .1. Create the list2. Place the access list on a interfaceThe analogy I use in class is:Suppose you reside in a gated community. The community is not protected until you hire the guard and then place him at the gate. If you hire the guard and never place him at the gate all traffic will be permitted. When there is no access list on an interface it is implicit permit anyWhen an access list is placed on a interface it is implicit deny any16. [xxNx] What is the result of the command?" access-list 101 permit tcp any 172.16.0.0 0.0.255.255 established"a) telnet sessions will be permitted regardless of the source addressb) telnet sessions will be denied regardless of the source addressc) telnet sessions will be denied if initiated from any address other than 172.16.0.0 networkd) telnet sessions will be permitted to the 172.16.0.0 network onlye) telnet sessions will be denied to the 172.16.0.0 network onlyAnswerc) telnet sessions will be denied if initiated from any address other than 172.16.0.0 networkThe secret to this question is the key word "established." Established means that the packet will be permitted unless it is the first part of the three way handshake. Recall that when we initiate a TCP connection we have no ACK. How can we acknowledge a sequence number from the other side when we have not established a session with him?17. [xxNx] Which is generally true of the location of access-lists? (Choose all that apply.)a) Standard lists will most likely be placed close to the destination.b) Standard lists will most likely be placed close to the source.c) Extended lists will most likely be placed close to the destination.d) Extended lists will most likely be placed close to the source.e) It does not matter.Answera) Standard lists will most likely be placed close to the destination.d) Extended lists will most likely be placed close to the source.A standard list will only check the source address. It makes no difference where the packet is going. If you place a standard list close to the source you could very well be denying that traffic to go to other destinations. An extended list can be placed close to the source because we can permit or deny traffic based upon the source and destination address. This insures that only traffic we wish to have denied is denied.18. [RxNx] Which of the following is most correct?a) IP is to TCP. as IPX is to SPX.b) RTMP is to Appletalk as IP RIP is to IP.c) NLSP is to IPX as OSPF is to IP.d) a is true.e) b is true.f) a & b are true.g) c is true.h) b & c are true.i) a, b and c are true.i) a, b and c are true.19. [ExNx] If Host A sends a packet to Host B over ethernet and Host B is not active:a) The packet will time out.b) The packet will be removed by Host A.c) The NVRAM of Host B will remove the packet.d) The packet will "die" when it reaches the terminator.e) The packet will be removed by the token monitor.Answerd) The packet will "die" when it reaches the terminator.２０—３９及答案20. [TxNx] If Host A sends a packet to Host B over token ring, and Host B is not active: a) The packet will time out.b) The packet will be removed by Host A.c) The NVRAM of Host B will remove the packet.d) The packet will "die" when it reaches the terminator.e) The packet will be removed by the token monitor.21. [TxNx] If Host A sends a packet to Host B over token ring: Host A dies after transmitting, and Host B is not active:a) The packet will time out.b) The packet will be removed by Host A.c) The NVRAM of Host B will remove the packet.d) The packet will "die" when it reaches the terminator.e) The packet will be removed by the Active monitor.22. [FxNx] BECN and FECN are:a) Used to provide keepalives in a Frame Relay environmentb) Used to provide error checking in a Frame Relay environmentc) Used to provide congestion information in a Frame Relay environmentd) Used to provide flow control parameters in a Frame Relay environmente) BECN and FECN are not used in a Frame Relay environment.23. [RxNx] Which of the following are benefits of a Link-State routing protocol? (Choose all that apply.)a) Allows the use of a more robust addressing scheme.b) Allows for a larger scalable networkc) Reduces convergence timed) Allows "supernetting"e) All of the above.24. [OxNx] Which of the following are reasons for the OSI model?a) Standardizes interfacesb) Allows modular engineeringc) Facilitates learning and teachingd) All of the above.25. [RxNx] Which of the following is NOT a ROUTING protocol:a) OSPFb) RIPc) IPXd) EIGRP26. [RxNx] Which statement is NOT true about link state protocols:a) Link state advertisements are sent to all routers in an area.b) Each router executes the SPF algorithm.c) Link state routers keep a topological database of the network.d) Link state routers include the originating router s routing table.e) Link state routers know of possible alternate paths to a particular network.27. [RxNx] Which of the following would NOT appear in a routing table?a) Next hop addressb) Interface Port referencesc) MAC addressd) Network addresse) Metrics28. [OxNx] Which statement is true of the Datalink OSI layer ?a) 802.3 is the MAC sub layer.b) No such thingc) MAC sublayer provides the connection to the network layer.d) MAC sublayer uses SAPS to access the network layer.e) SAP sublayer uses the MAC layer to access the LAN medium.29. [RINx] Given the IP address of 193.243.12.43 and a subnet mask of 255.255.255.128, what is the subnet address?a) 194.243.12.32b) 193.243.0.0c) 194.243.12.43d) 193.243.12.128e) None of the above.30. [CxNx] Cisco uses a naming convention to identify frame types. Which four of the following mappings are correct?Cisco_name = Common_namea) cisco_II = Ethernet_IIb) arpa = Ethernet_IIc) sap = Ethernet_802.3d) sap = Ethernet_802.2 LLCe) Novell Ether = Ethernet_802.2 LLCf) cisco_802 = Ethernet_802.2 LLCg) snap = Token Ring Snaph) snap = Ethernet_SNAP31. [RxNx] In order to communicate throughout an internetwork, which of the following are required. Choose Two.a) The use of a routable protocol such as NetBEUI or LATb) A hierarchical naming scheme server such as DNSc) A host file at each communicating deviced) A two part network addressing scheme such as Network/Hoste) The use of a routable protocol such as IP or IPXf) The use of a routable protocol such as TCP or IPX32. [CxNx] What is the default route on an IP network? Choose one.a) This is the route that will be chosen first by IP for delivery of a datagram.。

CCNA 思科网络章节考试题及答案《网络规划和布线》

《网络规划和布线》在IPv4 环境中，路由器根据什么信息在不同的路由器接口之间转发数据包？目的网络地址源网络地址源MAC 地址公认端口目的地址OSI 第3 层封装期间添加什么信息？源MAC 地址和目的MAC 地址源应用程序协议和目的应用程序协议源端口号和目的端口号源IP 地址和目的IP 地址在无连接系统中，下列哪项陈述是正确的？发送数据包之前联系目的设备。

发送数据包之前不联系目的设备。

目的设备向源设备发送确认，表示已经收到数据包。

目的设备向源设备发送确认，请求发送下一个数据包。

IP 数据包的哪个字段用于防止无限循环？服务类型标识标志生存时间报头校验和路由器使用网络层地址的哪个部分转发数据包？主机部分广播地址网络部分网关地址请参见图示。

如果使用图示中的网络，下列哪一项将成为192.133.219.0 网络中主机A 的默认网关地址？192.135.250.1192.31.7.1192.133.219.0192.133.219.1如果主机上的默认网关配置不正确，对通信有何影响？该主机无法在本地网络上通信。

该主机可以与本地网络中的其它主机通信，但不能与远程网络上的主机通信。

该主机可以与远程网络中的其它主机通信，但不能与本地网络中的主机通信。

对通信没有影响。

默认网关有何作用？用于物理连接计算机和网络为计算机提供永久地址标识计算机所连接的网络标识网络计算机的逻辑地址，并且是网络中的唯一标识允许本地网络计算机和其它网络中的设备通信的设备标识哪种路由使用的信息需要手动输入路由表中？动态内部静态标准如果目的网络未列在Cisco 路由器的路由表中，路由器可能会采取哪两项措施？（选择两项）路由器发送ARP 请求以确定所需的下一跳地址。

路由器丢弃数据包。

路由器将数据包转发到ARP 表所示的下一跳。

路由器将数据包转发到源地址所示的接口。

路由器将数据包从默认路由条目所确定的接口发出。

将主机分组到同一个网络时应考虑哪些关键因素？（选择三项）网关用途物理编址软件版本地理位置所有权以下哪一项是路由表条目的组成部分？路由器接口的MAC 地址第 4 层目的端口号目的主机地址下一跳地址下列哪些中间设备可用于在网络之间实施安全保护？（选择两项）路由器集线器交换机防火墙接入点网桥大型网络存在哪三个常见问题？（选择三项）广播太少性能下降安全问题管理职责受限制主机标识协议兼容性请参见图示。

ccna中文试题及详解

1.对于MSFC（多层交换功能卡）的说法不正确的是A. MSFC只能运行IOS系统B. MSFC可运行IOS系统，或者CatOS系统C. 如果交换机管理引擎（Supervisor Engine）上运行的是CatOS系统，则所安装的MSFC必须D. 在管理引擎和MSFC上可同时运行IOS系统2. ROMmon模式恢复丢失映象的IOS交换机中，用来加载新的启动映射的命令是A. boot bootflash:B. boot system flash bootflash:C. boot tftp:D. copy tftp flash:3.现要把一个cisco交换机端口添加到多个VLAN中，则需要把该端口设置成（）模式A. access portB. trunk portC. routed portD. tunnel port4.如下图所示的网络拓扑结构中，cisco交换机4的根路径开销（Root Path Cost）为A. 4B. 19C. 23D. 275.下面关于端口属性的说法不正确的是A. 快速以太网(10/100 Mbps)端口支持10 Mbps或者100 Mbps速率和所有双工选项B. 仅工作在1000 Mbps的千兆以太网端口不支持半双工模式C. 100BASE-x 和1000BASE-x SFP模块端口支持所有双工选项，但不支持速率自动协商D. 不能为10G以太网端口配置速率和双工模式6.有两台交换机想要通过两个普通RJ-45交换端口实现级联，并且支持直通和交叉电缆，则下面（）配置步骤描述是不正确的A. 要在相连的两端口上分别配置auto-MDIX设置B. 可只在相连的任一端口上配置auto-MDIX设置C. 在启用auto-MDIX功能后，必须设置接口速率和双工模式为“auto”（自动）D. 不能使用1000BASE-SX /-LX SFP模块端口，但可使用10/100/1000BASE-TX SFP模块端口7.下面（）不是Cisco设备VLAN间路由的可选方案A. 网关B. RSMC. RSFCD. 路由器8.下面是在Cisco交换机上一个把gigabitethernet0/1接口添加到VLAN 10的配置步骤，但其中少了关键的一步。

CCNA考试题

第一部分：选择题1：提供可靠数据传输、流控的是OSI的第几层( ）A、表示层B、网络层C、传输层D、会话层E、链路层2:子网掩码产生在那一层（）A、表示层B、网络层C、传输层D、会话层3：当路由器接收的IP报文的目的地址不是本路由器的接口IP地址，并且在路由表中未找到匹配的路由项,采取的策略是（）A、丢掉该分组B、将该分组分片C、转发该分组D、以上答案均不对4：当一台主机从一个网络移到另一个网络时，以下说法正确的是（)A、必须改变它的IP地址和MAC地址B、必须改变它的IP地址，但不需改动MAC地址C、必须改变它的MAC地址，但不需改动IP地址D、MAC地址、IP地址都不需改动5：ISO提出OSI的关键是( ）A、系统互联B、提高网络速度C、为计算机制定标准D、经济利益6:OSI参考模型按顺序有哪些层( ）A、应用层、传输层、网络层、物理层B、应用层、表示层、会话层、网络层、传输层、数据链路层、物理层C、应用层、表示层、会话层、传输层、网络层、数据链路层、物理层D、应用层、会话层、传输层、物理层7：LAN的拓扑形式一般以( )为主。

A、总线型B、环型C、令牌环D、载波侦听与冲突检测CSMA/CD8:网段地址154.27.0.0的网络，若不做子网划分，能支持（）台主机A、254B、1024C、65,534D、16，777，2069:路由器网络层的基本功能是( ）。

A、配置IP地址B、寻找路由和转发报文C、将MAC地址解释成IP地址10：选出基于TCP协议的应用程序( ）。

A、PINGB、TFTPC、TELNETD、OSPF11:某公司申请到一个C类IP地址,但要连接6个的子公司，最大的一个子公司有26台计算机，每个子公司在一个网段中,则子网掩码应设为( ）。

A、255.255.255.0B、255.255。

255.128C、255.255.255.192D、255。

255。

255.22412：B类地址的缺省掩码是（)。

ccna考试题及答案

ccna考试题及答案1. 以下哪项是网络层的功能？A. 路由选择B. 错误检测C. 流量控制D. 封装数据包答案：A2. 在OSI模型中，哪一层负责在网络中传输数据？A. 应用层B. 传输层C. 会话层D. 网络层答案：D3. 以下哪个协议是用于在IP网络中发现网络设备的？A. ARPB. RARPC. ICMPD. OSPF答案：A4. 在TCP/IP模型中，哪一层与OSI模型的传输层相对应？A. 应用层B. 互联网层C. 网络接口层D. 传输层答案：D5. 以下哪个地址是一个有效的IPv4地址？A. 192.168.1.256B. 192.168.1.1C. 10.0.0.0D. 172.16.300.1答案：B6. 在配置路由器时，以下哪个命令用于进入全局配置模式？A. enableB. configure terminalC. privileged execD. user exec答案：B7. 以下哪个命令用于在Cisco设备上显示当前配置？A. show running-configB. show startup-configC. show configD. show current-config答案：A8. 在Cisco设备上，以下哪个命令用于保存当前的配置到启动配置文件？A. copy running-config startup-configB. copy startup-config running-configC. save running-configD. save startup-config答案：A9. 以下哪个命令用于在Cisco设备上查看所有接口的状态？A. show interfacesB. show ip interface briefC. show interface statusD. show running-config interface答案：B10. 在Cisco设备上，以下哪个命令用于关闭接口？A. shutdownB. no shutdownC. disableD. no enable答案：A11. 以下哪个命令用于在Cisco设备上启用接口？A. shutdownB. no shutdownC. disableD. no enable答案：B12. 在配置静态路由时，以下哪个命令用于指定下一跳地址？B. ip static-routeC. route ipD. static-route ip答案：A13. 以下哪个命令用于在Cisco设备上清除ARP表？A. clear arp-cacheB. clear arpC. clear arp tableD. clear ip arp答案：D14. 在配置动态路由协议时，以下哪个命令用于在接口上启用RIP？A. ip rip enableB. ip rip receiveD. network rip答案：C15. 以下哪个命令用于在Cisco设备上查看RIP路由表？A. show ip ripB. show ip route ripC. show ripD. show ip protocols答案：B16. 在配置EIGRP时，以下哪个命令用于指定自动汇总？A. metric weightsB. auto-summaryC. network auto-summaryD. no auto-summary答案：B17. 以下哪个命令用于在Cisco设备上查看EIGRP邻居？A. show ip eigrp neighborsB. show eigrp neighborsC. show ip eigrpD. show eigrp interfaces答案：A18. 在配置OSPF时，以下哪个命令用于指定路由器ID？A. router-idB. router ospfC. networkD. area答案：A19. 以下哪个命令用于在Cisco设备上查看OSPF路由表？A. show ip ospfB. show ip ospf databaseC. show ospfD. show ip route ospf答案：D20. 在配置VLAN时，以下哪个命令用于创建一个新的VLAN？A. vlan databaseB. configure terminalC. vlan [vlan-id]D. new-vlan答案：C21. 以下哪个命令用于将接口分配给VLAN？A. switchport mode accessB. switchport mode trunkC. switchport access vlan [vlan-id]D. switchport trunk vlan [vlan-id]答案：C22. 在配置交换机时，以下哪个命令用于将接口设置为Trunk 模式？A. switchport mode accessB. switchport mode trunkC. switchport access vlan [vlan-id]D. switchport trunk vlan [vlan-id]答案：B23. 以下哪个命令用于在Cisco设备上查看VLAN配置？A. show vlanB. show vlan briefC. show vlan detailD. show vlan all答案：B24. 在配置VTP时，以下哪个命令用于将交换机设置为VTP服务器模式？A. vtp mode serverB. vtp mode clientC. vtp mode transparentD. vtp mode off答案：A25. 以下哪个命令用于在Cisco设备上查看VTP状态？A. show vtp statusB. show vtp statisticsC. show vtp passwordD. show vtp configuration答案：A26. 在配置STP时，以下哪个命令用于设置根桥？A. spanning-tree root primaryB. spanning-tree root secondaryC. spanning-tree root primary [priority]D. spanning-tree root secondary [priority]答案：C27. 以下哪个命令用于在Cisco设备上查看STP状态？A. show spanning-treeB. show spanning-tree detailC. show spanning-tree summaryD. show spanning-tree interface答案：A28. 在配置VLAN Trunking Protocol (VTP) 时，以下哪个命令用于设置VTP域名？A. vtp domain [domain-name]B. vtp password [password]C. vtp mode [mode]D. vtp version [version]答案：A29. 以下哪个命令用于在Cisco设备上查看当前的VTP版本？A. show vtp statusB. show vtp statisticsC. show vtp passwordD. show vtp configuration答案：A30. 在配置端口安全时，以下哪个命令用于限制接口上可以学习到的最大MAC地址数量？A. switchport port-security maximum [mac-count]B. port-security maximum [mac-count]C. switchport port-security violation restrictD. port-security violation shutdown答案：A这些题目和答案仅供学习和参考之用，实际的CCNA考试内容和形式可能会有所不同。

ccnp测试题及答案

ccnp测试题及答案1. 在CCNP认证中，关于VLAN的以下哪个说法是正确的？A. VLAN是将交换机端口划分为多个广播域B. VLAN是将路由器端口划分为多个广播域C. VLAN是将无线接入点划分为多个广播域D. VLAN是将服务器划分为多个广播域答案：A2. 在Cisco网络设备中，哪个命令用于创建一个新的VLAN？A. `switchport mode access`B. `switchport mode trunk`C. `vlan database`D. `configure terminal`答案：C3. 以下哪个协议用于在不同VLAN之间路由？A. EIGRPB. OSPFC. RIPD. VTP答案：A4. 在Cisco设备上，如何将接口配置为Trunk模式？A. `switchport mode access`B. `switchport mode trunk`C. `interface vlan 1`D. `interface fastethernet 0/1`答案：B5. 以下哪个命令用于在Cisco设备上查看VLAN信息？A. `show vlan`B. `show interfaces`C. `show ip interface brief`D. `show running-config`答案：A6. 在CCNP考试中，关于EIGRP协议的以下哪个说法是错误的？A. EIGRP是一个距离矢量路由协议B. EIGRP使用DUAL算法计算最短路径C. EIGRP支持VLSM和CIDRD. EIGRP仅在Cisco设备上可用答案：D7. 在Cisco设备上，如何配置EIGRP的自动汇总？A. `router eigrp 100`B. `no auto-summary`C. `ip summary-address eigrp 100 0.0.0.0 0.0.0.0`D. `metric weights 0 1 1 1 0 0 0 1`答案：C8. 以下哪个命令用于在Cisco设备上查看EIGRP邻居？A. `show ip eigrp neighbors`B. `show ip ospf neighbors`C. `show ip rip neighbors`D. `show ip eigrp interface`答案：A9. 在CCNP考试中，关于OSPF协议的以下哪个说法是正确的？A. OSPF仅在Cisco设备上可用B. OSPF使用RIP算法计算最短路径C. OSPF支持VLSM和CIDRD. OSPF使用广播来发现邻居答案：C10. 在Cisco设备上，如何配置OSPF的Hello和Dead间隔？A. `ip ospf hello-interval 10`B. `ip ospf dead-interval 40`C. `timers 10 40`D. `ospf hello-interval 10 dead-interval 40`答案：C结束语：以上是CCNP测试题及答案，希望对您的学习和准备有所帮助。

CCNP认证水平测试题

CCNP认证⽔平测试题CCNP思科⽹络认证⼯程师培训班考核单位: 姓名：分数：⼀、填空题（每空1分，共8分）1、B GP属于协议？2、B GP将协议⽤作其传输层协议？BGP使⽤端⼝？3、B GP运⾏在同⼀个⾃治系统中的路由器之间时被称为，BGP运⾏在不同⾃治系统中的路由器之间时被称为。

4、在命令show ipbgp的输出中，>意味着。

5、B GP命令neighbor和network之间的不同是前者告诉BGP ，后者指出。

⼆、单选选择题（每题1.5分，共48分）1、下⾯哪项正确地描述了EIGRP拓扑表？( )A 、它是使⽤收到的Hello分组填充的B 、它包含获悉的前往⽬的地的所有路由C 、它只包含前往⽬的地的最佳路由2、默认情况下，EIGRP使⽤哪种⾝份验证⽅式？( )A 、简单密码B 、MD5C 、⽆D 、IPSec3、下列哪⼀项不是链路状态路由协议的特征？( )A 、能够对⽹络变化做出快速反应B 、每隔30分钟⼴播⼀次C 、⽹络发⽣变化时发送触发更新D 、以较长的间隔（如每隔30分钟）发送定期更新，这被称为链路状态刷新4、为确保⽹络中所有路由器做出⼀致的路由决策，每台路由器都存储除下列哪项外的所有内容？( )A 、直接相连的邻接路由器B 、⽹络中或区域中的所有路由器以及它连接的⽹络C 、前往每个⽬的地的最佳路径D 、使⽤的路由协议的版本5、下列哪项不是OSPF区域的特征？( b )A 、减少了路由表条⽬B 、必须采⽤扁平的⽹络设计C 、将拓扑变化的影响限制在区域内D 、详细的LSA扩散到区域边界为⽌6、2类OSPF分组是什么？( )A 、数据库描述（DBD），⽤于检查路由器之间的数据库是否同步B 、链路状态请求（LSR），⽤于向其他路由器请求特定的链路状态记录C 、链路状态更新（LSU），⽤于发送被请求的链路状态记录D 、链路状态确认（LSAck），⽤于确认其他类型的分组7、下列哪种有关Hello间隔和失效间隔的说法是正确的？( )A 、邻接路由器的这些定时器值可以不同，因为将使⽤最⼩的值B 、邻接路由器的这些定时器值可以不同，因为将使⽤最⼤的值C 、邻接路由器的这些定时器值可以不同，因为邻接路由器将协商这些值D 、邻接路由器的这些定时器值必须相同8、下列哪个IP地址⽤于将更新后的LSA条⽬发送给OSPF DR和BDR？( )A 、单播地址224.0.0.5B 、单播地址224.0.0.6C 、多播地址224.0.0.5D 、多播地址224.0.0.69、为确保数据库的准确性，OSPF每隔多长时间刷新每条LSA记录？( )A 、60分钟B 、30分钟C 、60秒钟D 、30秒钟10、为实现OSPF路由选择，不需要下⾯哪项信息？( )A 、给路由器接⼝配置的IP地址B 、要使⽤的OSPF进程号C 、路由器所属的区域11、下列哪项不是指定OSPF路由器ID（⼀个唯⼀的IP地址）的⽅式？( )A 、使⽤最⼤的物理接⼝IP地址B 、使⽤最⼩的物理接⼝IP地址C 、环回接⼝的IP地址D 、命令router-id12、下⾯哪项正确地描述了邻接关系？( )A 、位于同⼀个物理⽹络的路由器之间B 、位于不同OSPF区域中的路由器之间C 、路由器与另⼀个⽹络的DR和BDR之间D 、⾻⼲DR和中转BDR之间13、下⾯哪种有关OSPF DR/BDR选举的说法不正确？( )A 、优先级最⾼的路由器为DRB 、优先级次⾼的路由器为BDRC 、如果所有路由器的优先级皆为默认值，则RID最⼩的路由器为DRD 、优先级为0的路由器不能成为DR或BDR14、哪种提⽰符表⽰⽤户正处在Cisco IOS软件的VLAN数据库配置模式中？( )A 、Switch#B 、Switch(vlan)#C 、Switch(config)#D 、Switch(config-vlan)#15、哪种交换机端⼝能够忽略DTP的配置，⽽⽆条件地将交换机端⼝设置为Access模式？( )A 、接⼊（Access）B 、⾮协商（Nonegotiage）C 、动态⾃动（Dynamic auto）D 、动态企望（Dynamic desirable）16、 ISL封装帧的FCS中包含哪种信息？( )A 、CRC计算B 、报头计算C 、ASIC计算D 、协议⽆关17、 802.1Q使⽤的是内部标记机制，这个标记会被插在哪个字段之后？( )A 、类型（Type）B 、SAC 、数据（Data）D 、CRC18、哪条命令能够在Cisco IOS软件中正确地将端⼝配置为ISL封装？( )A 、Switch(config-if)#switchport mode trunk islB 、Switch(config-if)#switchport mode encapsulation islC 、Switch(config-if)#switchport trunk encapsulation islD 、Switch(config-if)#switchport mode trunk encapsulation isl19、哪条命令能够正确地将Native VLAN设置为VLAN 5？( )A 、switchport native vlan 5B 、switchport trunk native 5C 、switchport native trunk vlan 5D 、switchport trunk native vlan 520、 Catalyst交换机默认的VTP模式是什么？( )A 、客户端（Client）模式B 、Access模式C 、服务器（Server）模式D 、透明（Transparent）模式21、在完成VTP配置之后，哪条命令能够验证VTP的配置？( )A 、show vtp statusB 、show vtp countersC 、show vtp statisticsD 、show vtp status counters22、在下列哪种情况下，管理员在多层交换机上配置SVI必须使⽤命令ip routing？( )A 、当SVI正在为某个给定的VLAN提供通往交换机的IP连接时B 、当管理员需要将SVI配置为⼆层EhterChannel的⼀个成员接⼝时C 、在管理员没有使⽤EIGRP作为路由协议时D 、当SVI正在为分配给它的VLAN提供三层IP转发服务时E 、永远不需要配置这条命令，因为多层交换机默认就启⽤了IP路由选择功能23、如何将多层交换机上的端⼝配置为路由端⼝？( )A 、在这个端⼝上配置IP地址和⼦⽹掩码B 、使⽤命令switchport mode routed进⾏配置C 、在这个交换机端⼝上清除⼆层交换功能D 、使⽤命令no swichport mode进⾏配置24、在基于Cisco IOS软件的交换机上，下列哪条命令可⽤于将接⼝从三层接⼝变更为⼆层接⼝？( )A 、switchport mode accessB 、ip routingC 、switchportD 、switchport mode trunk25、在Catalyst交换机上，下列哪条Cisco IOS命令能够启⽤IP路由选择特性？( )A 、ip routingB 、interface vlan-idC 、ip address n.n.n.n maskD 、router ip_routing_protocol26、下列哪⼀项不是Catalyst交换机上推荐的管理安全性配置？( )A 、使⽤SSH，禁⽤Telnet服务B 、禁⽤不必要和未使⽤的服务，⽐如MOP或代理ARPC 、配置ACL来限制只有特定⽤户能够管理⽹络设备D 、禁⽤交换机的远程访问功能E、按照策略为特定类型的流量限制特定的带宽参数F 、在物理上防⽌⽤户从控制台（console）端⼝访问设备27、下列哪个命令使Catalyst交换机启⽤AAA安全配置？( )A 、ppp authentication chapB 、aaa new-modelC 、aaa authentication login default group RADIUSD 、username name password password28、下列哪⼀项不是802.1X所⽀持的端⼝授权状态？( )A 、Force-authorize（强制授权）B 、Force-unauthorized（强制未授权）C 、Auto（⾃动）D 、Desirable（需要）29、下列哪个特性阻⽌了MAC地址欺骗？( )A 、端⼝安全B 、DHCP侦听C 、IGMP侦听D 、MAC通告30、 48．下列哪类ACL可以应⽤到⼆层端⼝上？（选择所有可应⽤的选项）( )A 、路由器ACLB 、QACLC 、PACLD 、VACLE 、以上所有31、已默认计时器为例使⽤HSRP时，备⽤路由器需多长时间才民能检测到活跃路由器的失效情况( )A 、15秒B 、3秒C 、10秒D 、9秒E 、<1秒32、 VRRP主⽤路由器的默认公告计时器是多长时间？( a )A 、3秒B 、1秒C 、10秒D 、2秒E 、以上都不对三、多项选择题（每题2分，共12分）1、下⾯哪两种有关通告距离（AD）和可⾏距离（FD）的说法是正确的？( )A 、AD是邻居路由器前往特定⽹络的EIGRP度量值B 、AD是当前路由器前往特定⽹络的EIGRP度量值C 、FD是当前路由器前往特定⽹络的EIGRP度量值D 、FD 是邻居路由器前往特定⽹络的EIGRP度量值2、路由器A和B相连，它们的所有接⼝都运⾏EIGRP。

CCNP+认证试题

现在免费公布!全英文题d> CCNP认证试题1) When configuring dialer information. Which statement is correct?! Values of dialer-group and dialer-list must match! Values of dialer-group and dialer-list must be different! Values of dialer-group and dialer-list can match or differ! If you set a value for dialer-group you must not set a value for dialer-list2) Which of the following is a logical entity, and may be configured with one or more dial strings?! Dialer interface! Dialer map class! Dialer profile! Dialer pool3) Which of the following is used to define characteristics (such as line speed) about a specified dial string?! Dialer interface! Dialer map class! Dialer profile! Dialer pool4) Which of the following would you use to prioritized dial interfaces?! Dialer interface! Dialer map class! Dialer profile! Dialer pool5) What are the elements of a dialer profile?! Dialer interface! Dialer map class! Dialer pool6) True/False: One physical interface can belong to multiple dialer pools? ! True! False7) What process normally occurs when you use dynamic NAT! Your address is always translated to the same address! Your address is always translated to a different address! Your address is incremented round robin! Your address is dynamically chosen from a pool of available addresses8) Which command blocks routing broadcasts on a interface?! dialer-list! no routing! passive-interface! redistribute route9) What are two advantages of xDSL?! xDSL uses in place copper loops! xDSL uses inexpensive modems! higher rates over longer distances! basic telephone services available on the same line10) What command do you use to define a global address pool? ! ip local-pool! ip global pool! ip global-pool! ip address-pool11) Which are 3 default profiles in 700 series?! LAN! Internal! Global! User! Standard12) Which two compression methods are used on Cisco routers? ! lha! predictor! stacker! byte recursive13) What command do you use to define an local address pool? ! ip local pool! ip global pool! ip address-pool14) Type command to enable stacker compression! enable stac! enable compression high! compress stac! no compression predicator15) The info from "show sessions" can be displayed with! where! show all! show lat! show users16) What does command "logging host" do! Sends snmp traps to the specified host! sends logging info to a unix syslog server! sends logs to a workstation running the ciscoworks network management software17) Which command do you use to log messages to the internal buffer?! Logging save! logging buffered! logging nvram! logging ro18) Which two statements are true re: limiting VT access to router? (2)! Blocking outbound telnet on all physical interfaces prevents remote access! Since all VTY抯use telnet only one type of VTY ACL is necessary! You should always set identical restrictions on all virtual lines! Cisco routers support 4 simultaneous virtual sessions19) Which of the following two statements are true regarding 56kbps modems? ! Speeds are limited to 53kbps by fcc regulations! Digital data is not converted back to analog data! Isdn framing of analog signals creates lower overhead! Out of band signaling increases available bandwidth! The download speed is faster than the upload speed! 56kb modems are compatible with isdn but at a slower speed20) What is the function of the l2f protocol in virtual private networks?! User authentication! Network authentication! Tunneling link level protocols over higher protocols! Establishing multiple virtual paths to a remote destination21) VPDN enables service providers to?! Buy fewer routers! Increase bandwidth! Decrease broadcast traffic! Replace corporate dialup services22) What command is used to specify that any traffic causes an ISDN call?! Group dialer-ip all! Dialer-list 1 protocol ip permit! Dialer traffic ip23) What is the command to require a password to access the console terminal? ! Set pass console! Password line! Line 1 console! Enable password24) What are the three options for the dialer map command?! Name hostname! Chat-script! Ip address! Modem-script! System-script! Dial number25) What are the three components of a dialer profile? (3)! Destination profile! Dialer interface! Dialer map class! Interface map! Dialer pool26) Which command displays information about b1 and b2 channels?! Show int bri0 1 2! Show int isdn bri 2 1! Show int bri1 bri2! Show int bri127) Configure dial backup for the indicated interface (1)! Backup dial interface-name! Backup dial interface interface-name! Dial-backup interface-name! Dial-backup interface interface-name! Backup interface interface-name28) Which two statements are true regarding the command telnet 1.2.3.4 2003 ! Establishes a reverse telnet connection! The data is sent to rotary group 3! The data is sent to individual line 3! The data is sent to line 1! The data is sent to rotary group 3 which is a VPDN29) Which three functions does pat provide for cisco 700 series routers! Address translations! Ip address conservation! Remote host location on behalf of local clients! Firewall protection by hiding local clients! Downloads configuration to local clients30) Which command executes the menu named sales when the user jane logs in through any line! Username jane autocommand menu sales! Autocommand menu sales user jane! Autocommand menu jane user! Username auto select user jane31) Which two characteristics apply to the pri but do not apply to the bri! PRI uses a csu/dsu! Uses a t1 or e1 for isdn! The channel is 56k! The speed is 1.544 or 2.048mb32) Regarding terminal connections, which one describes a reverse connection?! Incoming asynchronous line! Outgoing asynchronous line! Support for a remote host printing on the local network! Support for a remote host dialing into a asynchronous interface33) What command should you use to verify the current configuration that an access server line is using? ______! ________________34) What are two options of the ISDN t1/e1 pri configuration command for framing?! Esf! crc4! Ppp! hdlc35) What two events can trigger a chat script to execute? (2)! Line reset! Dialer triggered by ddr! Interesting traffic! Routing information update! Pinging a TCP Port Address36) Why is ipx and spx spoofing important?! Spoofing enables to networks to be hidden from unauthorized users! Spoofing avoids constant updates that might keep expensive ddr lines in use ! Spoofing allows clients to find less expensive routes to resources! Spoofing causes spx to respond as if it where ipx to cut down overhead 37) How does xDSL achieve such a high data rate over the phone lines?! XDSL uses higher frequencies for data transmissions! Digital data is not converted back to analog at the service provider! Multiple Phone lines are used! Statistical multiplexing is used.38) Which command allows you to troubleshoot your VPDN operation?! Show nas! Debug vpdn! Show vpdn events! Debug vpdn event39) You are configuring dial backup for primary links. Which command do you use to indicate the backup interface in the case of a primary link failure.! Backup ip interface-name! Backup dial interface-name! Backup interface interface-name! Backup dial interface interface-name40) which function on a cisco access server draws ibm 3270 screens by turning ibm directives into dumb terminal commands! ttycap! keymap! keymap-type! emulation41) What is the operation of a dhcp servers! Dhcp manage ip addresses and assign ip configuration parameters at client request! Dhcp servers hide internal addresses from the outside world! Dhcp servers keep a database of network routers that can be used by other routing protocols ! Dhcp servers act on behalf of network clients to find routes to remote networks42) Assuming you have just configured an asynchronous interface below as a dial backupline, active the line when the load for the primary interface reaches 90% and deactivate when the combined load in both directions reaches 40%.Type the command:! ___________________43) Which examples are two options that modem auto-configuration is necessary.! Modem using called ID! Modem reinitilization after failure! Configuring a modem from a central location! Modem configuration without using modem configuration commands44) You are configuring a static route on a router. You would like to configure it so that if the interface associated with the route goes down the route will still remain in the routing table. Which ip routing parmeter causes this?! Keep! Permanent! Continuous! Backup45) What is a profile and how is it used with a cisco 700 series router! A configuration customized for a specific remote device! Access privileges associated with users! Access privileges to routing services! Access privileges associated remote system! Access privileges to the local network! Configuration files users can download to their router for quick setup46) Which three access servers are used in the access path integrated access solution ! Cisco 7200! As5200! Cisco 3600! Cisco 2511! Cisco 160047) What is the key advantage of chap over pap?! Chap never sends a visible password! Chap authentication takes fewer steps! Pap has a higher overhead! If authentication fails at any time pap drops the call48) Which signal indicates that the DTE is available to accept a call?! Dsr up! Rts up! Cts up! Dtr up49) Type the complete command to display a list of servers discovered through sap advertisements?! ____________50) In addition to viewing routing tables, what command can you use to determine a router is using the best path when forwarding a packet to a specific network?! ____________51) What is the purpose of a dialer rotary group?! Define interesting traffic! Define ddr connectionConfigure dial backup connections! Apply a single interface configuration to mulitple interfaces52) Which two services are available through Cisco NAT?Address resolution! Domain lookup! Tcp load distribution! Specific address filtration! Static address translation53) Which resource node services link layer protocol provided by cisco access servers is preferred because it has low overhead, available compression, multiple protocol support, good security options! PPP! ALL5! ARAP! SLIP54) Which are the two frame types for T1 lines?! Super frame! Extended superframe! Q39.1T! Dma55) How does NAT allow for more hosts than there are available ip addresses! Manipulating the ip authentication field! Never using the same address twice! Modifying tcp port numbers! Restricting the number of hosts allowed to communicate on the network simultaneously 56) What is true regarding default routes?! They are always specified by an individual host! They always have static routes! They are not available for isdn! They must be configured at the end of each link57) Ppp defines which two authentication protocols?! Pip pap! Pop pap! Pap chap! Pop arp58) What is the effect of the following configuration line? (1)Dialer load-threshold 128 either! Another line will be dialed when inbound utilization reaches 128kbps! Another line will be dialed when outbound utilization reaches 128kbps! Another line will be dialed when bidirectional utilization reaches 128kbps! Another line will be dialed when bidirectional utilization reaches 50%59) Which command sets up modem autodiscovery?! Modem auto-discovery! Modem autoconfigure discovery! Autoconfigure modem discovery60) what prevents tunneling of the link layer frames through a vpdn?! l2f! l2e! lte! ltf61) What characteristics describe remote node instead of remote control? (2) ! Provides access to all network resources! Host end run at lan speed! Does not require a dedicated host at the remote site! Provides good performance with legacy applications62) What command associates an access list with a dialer group! Dialer-list listnum! Dialer-group list Access-list! Dialer-list groupnum list listnum! dialer-list dialer-group list access-list! Dialer-group protocol protocol-list Access-list! access-list dialer-group groupnumber63) Which of the following are ISDN reference points! The user reference point! The routing reference point! The terminal reference point! The data reference point64) What is the command to initiate the vpdn at an isp? (2)! Vpdn enable! Vpdn outgoing! Enable vpdn incoming! Enable vpdn outgoing65) What command will enable a dialer rotary group! Dialer group! Dialer interface! Interface dialer! Dialer rotary-group66) Why would the access list specified as access-list 101 deny igrp any any save money when used with other access lists on a ddr interface?! Only routing packets will bring up the line! Routing packets will not bring up the line! All traffic but igrp will bring up the line! No traffic will bring up the line67) Where all the logging messages directed by default?! Console terminal! Auxilary terminal! Tty1 auxilary port! Console port68) Which of the following scenarios is an example of protocol translation?! Connect to the access server using telnet to another host use telnet! Connect to access server using telnet then use lat! Connect to an access server using Ppp and use chap to authenticate! Connect via tn3270 then telnet destination69) Which command allows the remote dial in client to enter its own ip address? ! Async static-address! Async dynamic address! Remote ip! address ip unnumbered70) What process normally occurs when you use static NAT! Your address is always translated to the same address! Your address is always translated to a different address! Your address is incremented round robin! Your address is dynamically chosen through a pool71) Clear dynamic NAT translation entries:! Clear ip nat translation! Clear ip nat translation*72) Create static route for all traffic to net 150.27.0.0 to go out BRI0 ! _________________73) Which command will configure ddr to multiple destinations?! Dialer map interface! Dialer-map! Ddr-map! Interface dialer map74) 3 functions PAT provides:! address translation! ip address conservation! remote host on behalf of local clients! firewall! download config75) Where is logging directed by default:! VTY1! Console! Syslog host! There is no default76) Which feature of the Cisco IOS can be used to consolidate connection costs?! DDR! PPP Callback! Shut off router! IPX/SPX spoofing77) Which command associates an access list with a dialer group?! Dialer-list group-number protocol protocol-name {permit|deny|list access-list-number} ! Dialer-list group-number protocol-name {permit|deny|list access-list-number}! Dialer-list group-number protocol-name access-list {permit|deny}78) Which command would you use to troubleshoot VPDN operation?! Show nas! Debug VPDN incoming! Show VPDN event! Debug vpdn event79) What is modem autoconfigure used for?! Initialization after failure! Configure remote modems! Auto discovery of modem type! Modem configuration with using commands80) Framing for T1抯! SF/ESF! PPP/HDLC! SLIP/PPP! PAP/CHAP81) What are 2 options for the ISDN T1/E1 PRI configuration command 揻raming?/P> ! Esf! Ppp! Hdlc! Crc482) Which of the following are ISDN reference points:! User reference! Routing reference! Terminal reference! Data reference83) Which two terminal services are provided by Cisco access servers?! telnet! slip! ISDN! LAT84) What is the command to activate the line when the primary interface reaches 90%,and deactivate when the line reaches 40%:! ________________85) True/False: A VPDN allows you to replace corporate dialup infrastructure?! True! False86) What does a DDR allow you to do?! Replace corporate dialup infrastructure! Create secure connections to a host! Establish a connection between routers when interesting traffic is present! Tunnel frames between two Cisco routers87) Which feature of the Cisco IOS can be used to lower connection costs for switched circuits which are kept up by keepalives between clients and servers?! DDR! PPP Callback! Shut off router! IPX/SPX spoofing88) Explain the statement: Dialer load-threshold 128 either! Another line will be brought up when the line reaches 128kbps in either direction! Another line will be brought up after 50%! Another line will be brought up when the buffer has 128 packets in either direction! Another line will be brought up when the the line has experienced 128 errors 89) Display info on B1 and B2:! Show int bri! Show int bri 1 2! Show int isdn b1 b290) How does NAT allow more hosts than there are available IP addresses?! Manipulating IP identification field! Modify TCP port! Restricting the number of hosts allowed to communicate simultaneously 91) Advantages of MPPP! Increased bandwidth! Multiple physical interfaces can be cascaded! Supports strong encryption types! Multiple routes for redundancy92) Enter the command that sets up modem auto-discovery! ________________93) Why 56k modems work! Uses ISDN signaling! No analog conversion at CO! Uses frame relay packet switching technology! New FCC regulations allow higher frequencies94) What command specifies all IP traffic triggers an ISDN call! ____________________95) What command executes menu named sales for Jane:! ____________________96) Concept: Why is ipx/spx spoofing important?! ______________________97) What command will enable dial-on-demand routing on any asychronous interface? ! Dialer in-band! Backup interface! Dialer dynamic routing! Dialer enable98) What command displays modem configuration during auto-configuration ?! Debug line! Debug autoconf! Debug line field! Debug confmodem99) 3 features supported by T1 interface in AS5200?! Channelized T1! PRI! Only single t1 line! A single card w/Dual T1抯! Up to 60 DS0 channels100) VPDN is a way for service providers to:! Replace dedicated corporate dialup service! Buy fewer routers! Increase bandwidth101) Features which are available in remote node technology which are not present in remote control?! All network resources are available! Host end runs lan speed! No dedicated host! Good performance with legacy apps102) Features which are available in remote control technology which are not present in remote node?! All network resources are available! Host end runs lan speed! No dedicated host! Good performance with legacy apps103) What does PPP use to establish and config. Data link connections:! PPP! NCP! CHAP! LCP104) Describe a reverse terminal connection:! Incoming asynchronous line! Outgoing asynchronous line105) Why is PPP callback used?! Bill consolidation, cost cutting.! Line selection and reliability! Ease of config! End user savings106) Overload is when NAT experiences:! more hosts than addresses! excessive CPU utilization! no more static translations! messages to fast for console107) Describe telnet 1.2.3.4 3003 (3)! The command establishes a reserve telnet connection! The data is sent to rotary dialer groups! The data is sent to line 1 which is connected to a modem! The data is sent to the rotary group 3 which is connected to a modem or host 108) Configure a terminal with no default protocol:! No transport protocol! Transport protocol none! Transport preferred none! Transport disable! Transport default null109) Give an example of Protocol translation! LAT to telnet! Telnet to Telnet! PAP to CHAP110) When Cisco access servers allows another terminal to emulate an IBM3270 terminal type what two types does the access server assume are attached (radio button):! tn 3270! wyse 300! vt100! vt200111) How does 56kb achieve such a high data rate! digital data not converted to analog! uses ISDN signaling over standard copper112) What permits tunneling of link layer frames with a VPDN:! LZF! LZE! L2E! L2F113) DHCP is used for:! Dynamically assigning a mac address to a computer! Dynamically assigning an ip address to a computer! Dynamically booting the computer from the network114) Which of the following characteristics are associated with BRI抯?! 16kb D channel! 64kb D channel! 2B+1D! 23B+1D115) Which of the following characteristics are associated with PRI抯?! 16kb D channel! 64kb D channel! 2B+1D! 23B+1D116) Which concern is increasing likely to become more important if an IPX network grows and wan links are added? (1)! The 16 hop limitation of IPX! The amount of network broadcast traffic becoming signficant! The limitations of IPX addressing! Non routable novell protocols117) What 3 commands will create a connection to a remote host from the router exec prompt?! telnet ip-address! pad hostname! connect hostname! open hostname118) You are configuring multilink PPP. Which command do you use to configure the dialer interface if using dialer profiles! Config ppp! Config multilink! Set multilink! Ppp multilink。

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