Juniper-is在线考试题库

享是一种美分享是一种美德分享是一种美德享是一种Q. Which attributes are automatically updated when a BGP update is sent to an EBGP neighbor? (choose 2) A,DA. BGP Next-hop attributeB. Local Preference attributeC. Multi Exit Descriminator (MED) attributeD. AS-Path attributeE. Origin attributeQ. Which statements are true about post-service-filters? (choose 3) A,C,D A. A post-service-filter can only be used on inputB. A post-service-filter can be used on input, output or bothC. A post-service-filter is only applied to packets that are processed by a service-setD. A post-service-filter is a standard stateless firewall-filterQ. For a given prefix 10.10.10.0/23 learned as an OSPF Internal Intra-Area, an OSPF Internal Inter-Area and an OSPF AS External type 1, which route will be preferred? AA. OSPF Internal Intra-Area routeB. OSPF Internal Inter-Area routeC. OSPF AS External type 1D. Equal cost load sharing will occur if equal cost paths existQ. Your enterprise is dual-homed to the same Service Provider using BGP, with two links having bandwidth of STM1/OC3 and STM4/OC12 respectively. You want to influence all traffic leaving your autonomous-system to use the STM/OC12 link.Which BGP attributes can you modify to accomplish this goal? (choose 2) B,DA. Set Local Preference in an import policy for routes learned from the neighbor on the STM4/OC12 link to be 80B. Set Local Preference in an import policy for routes learned from the neighbor on the STM4/OC12 link to be 180C. Configure the import-policy for the STM4/OC12 neighbor to set the ORIGIN attribute to be INCOMPLETED. Configure the import-policy for the STM1/OC3 neighbor to as-path prepend the neighbors autonomous-system twiceE. Configure the import-policy for the STM4/OC12 neighbor to as-path prepend the neighbors autonomous-system twiceQ. In the exhibit, which export policy or policies will be applied to BGP neighbor 10.10.10.1? CA. global-policyB. group-policyC. nbr-policyD. all three policiesE. none of the policiesQ. Which steps are required to configure an interface-style service set? (choose 5) A,B,C,D,FA. Configure the service interfaceB. Configure the service rules and rule-setsC. Configure the service-set to include the service rules and/or rule-setsD. Configure the service-set to be interface-style and which service interface to useE. Configure routing to the service interfaceF. Apply the service-set to the required interfacesQ. Which step is not recommended as part of a seamless RIP to OSPF IGP transition using the overlay method? CA. Configure all routers to ensure the existing RIP IGP has a better route preference than the new OSPF IGPB. Configure all routers to run OSPFC. Redistribute all RIP routes into OSPF and vise versaD. Ensure all routers have learned all networks via OSPFE. Gracefully transition to OSPF by changing the route-preference of RIP to be higher than OSPFQ. Which configuration step is required when configuring an OSPF NSSA area? C2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种 A. You must configure nssa on all routers in the network B. You must configure nssa under [ edit protocols ospf ]C. You must configure nssa under [ edit protocols ospf area ]D. You must configure nssa only on the Area Border Routers (ABR's)Q. Which statements below are valid JUNOS stateful-firewall rule match types? (choose 3) A,B,DA. destination-address-rangeB. source-prefix-listC. esp-spiD. applicationsE. interface-set Q.In the exhibit, which statement is true for the static route 11.11.11.0/24 that is evaluated against the BGP export policy chain? DA. The 11.11.11.0/24 prefix is accepted by policy P1 and advertised to neighbor 10.10.10.1B. The 11.11.11.0/24 prefix is rejected by policy P1 and not advertised to neighbor 10.10.10.1C. The 11.11.11.0/24 prefix is rejected by the policy P2D. The 11.11.11.0/24 prefix is rejected by the BGP default policyE. The 11.11.11.0/24 prefix is accepted by the BGP default policyQ You want to determine which NAT pools have been configured on the router. Which command will display this information (choose 1) DA. show services nat available poolsB. show services poolsC. show services nat-pool-tableD. show services nat poolsQ Which statements best describe Enterprise connections to Service Providers? (choose 2) C,DA. Enterprises should always run BGP with their Service Providers when their CPE router has parallel multiple links to the ISP routerB. When BGP is run in an enterprise network, all routers need to run BGPC. Enterprises should use a static default route when there is only one entry/exit point out of their networkD. Enterprises should use BGP when they are multi-homed and have a need to exercise policy controlsQ Assuming the requirements for the establishment of an EBGP session between the loopback0 interfaces of both routers. The local autonomous-system is defined as AS100 and the neighbors autonomous-system is AS200. The local autonomous-system is configured under [ routing-options autonomous-system 100 ] Which statement is not true about Multihop External BGP peering sessions? AA. Both peer-as 200 and type external parameters are requiredB. Only peer-as 200 is requiredC. You must configure the local-address parameterD. You must configure the ttl for the multi-hop neighbor(s)E. The local router must have a route to the eBGP neighbors configured addressQ In the exhibit, which statements are true for the NAT translation? (choose 2) B,CA. The private/internal IP address that will be changed is 192.168.11.4B. The private/internal IP addresses that will be changed are 10.222/16C. The public/external IP address is 192.168.11.4D. The private/internal IP addresses can be anythingE. The public/external IP address is 10.222.44.1Q While monitoring the systems messages file, you encounter an entry that is frequently repeated, but seems somewhat cryptic2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种Jun 8 14:12:28 R1 chassisd[2737]: CHASSISD_IFDEV_DETACH_PIC: ifdev_detach_pic(0/3)Which command can you use to better understand the significance of this message? CA. show syslog message CHASSISD_IFDEV_DETACH_PICB. show system message CHASSISD_IFDEV_DETACH_PICC. help syslog CHASSISD_IFDEV_DETACH_PICD. show system error log CHASSISD_IFDEV_DETACH_PICQ In the exhibit, which statements are valid entries for the "State" field? (choose 3) B,D,EA. MonitorB. WatchC. ListenD. DropE. ForwardQ The security policy for your company specify that access for all operations staff to network devices will migrate to the TACACS+ protocol. The RADIUS protocol is currently deployed and will be the preferred method for authenticationWhat configuration is required on the JUNOS routers to ensure that only when network connectivity issues resulting in the TACACS+ and RADIUS being inaccessible allow locally defined users to login to the routers? CA. set system authentication-order [radius tacplus password]B. set system authentication-order [tacplus radius password]C. set system authentication-order [radius tacplus]D. set system authentication-order [tacplus radius]Q Which statements are true about Queuing on M-Series and J-Series routers (choose 3) B,C,EA. All M-Series routers support up to 8 hardware queuesB. All J-Series routers support up to 8 queuesC. Forwarding-classes map to queuesD. Voice Traffic is automatically classified as expedited-forwarding (EF) and sent to queue 1E. The default queue/forwarding class associations are a. Queue 0 - best-effortb. Queue 1 - expedited-forwardingc. Queue 2 - assured-forwardingd. Queue 3 - network-controlQ You need to determine which VPN technology is best suited to provide enterprise branch office connectivity. The requirements are that the solution should be:cost-effective does not have stringent security requirements need not support legacy protocols should be simple to manage for the customershould also provide Internet access on the same physical interface Which technologies/solutions are best suited? DA. Traditional overlay L2VPN based on Frame-Relay, ATM or Leased linesB. MPLS based L2VPNC. IPSec VPND. MPLS based L3VPNE. GRE tunnel VPNQ You need to ensure that a branch office which is connected to the Service Provider with a link speed of 128K does not get overwhelmed with traffic from the head office which has a link speed of 2Mbps. Juniper Networks J-Series routers are deployed as CPE devices in both locations. Which mechanism is best suited? DA. Police traffic exceeding 128Kbps to the branch site at the head officeB. Upgrade the branch sites bandwidth to 2 Mbps to ensure traffic limits are not exceededC. Apply Class of Service to ensure that the most important traffic is prioritizedD. Apply JUNOS Virtual Channels at the head office to ensure branch office sites are not overwhelmed with too much trafficQ Which statements are true regarding Class of Service configuration in JUNOS? (choose 4) A,C,D,EA. Behavior Aggregate (BA) classifiers are configured under [edit class-of-service classifiers]B. Behavior Aggregate (BA) classifiers are applied under2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种[edit interfaces class-of-service]C. scheduler-maps are needed to link forwarding-classes to schedulersD. RED/WRED profiles configured under [edit class-of-service drop-profiles] must be referenced in schedulers to take effectE. Rewrite-rules are configured under [edit class-of-service rewrite-rules] and must be applied to the logical interfaces defined under [edit class-of-service interfaces]F. Schedulers are configured under [edit class-of-service schedulers] and may include a. forwarding-class b. transmit-rate c. priority d. buffer-sizeQ Which statements are true about Policing/Rate Limiting (choose 2) A,CA. Policing is a useful tool for protecting the network from non-compliant sourcesB. Token-bucket policers can not be used on all interface typesC. Policers can be used to protect the network against DoS/DDoS attacksD. Policers can only be configured on ingressQ Which command can be used to determine which sockets the router has in either a listen or established state? BA. show netstat socketsB. show system connectionsC. show running protocolsD. show connections upQ During the establishment of an IPSec VPN, the routers negotiate which parameters will be used for the establishment of the IPSec Security Association (SA) using proposals that define these parameters.Which statements are true about configuring IPSec proposals? (choose 3) C,D,F[edit services ipsec-vpn ipsec proposal p1]luser@Junos-router#A. set authentication algorithm blowfishB. set encryption algorithm rsaC. set encryption algorithm aes-256-cbcD. set protocol espE. set protocol ipF. set lifetime 86400Q You need to verify that the IPSec VPN that you have just configured on a J-Series router is operating correctly.Which commands could be used to verify this? (choose 2) C,DA. show ike security-associationsB. show ipsec security-associationsC. show services ipsec-vpn ike security-associationsD. show services ipsec-vpn ipsec security-associationsQ Which statements are true for Class of Service ingress processing (choose 2) B,EA. Rewrite codepointsB. Multifield classificationC. SchedulingD. ShapingE. RateLimiting/PolicingQ. Which three commands are valid syntax?' A,C,D A. set then reject2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种B. set then discard C. set then acceptD. set then next-policyE. set then metric2 20 acceptQ. Which configuration step is required when configuring an OSPF NSSA area? CA. You must configure nssa on all routers in the networkB. You must configure nssa under [ edit protocols ospf ]C. You must configure nssa under [ edit protocols ospf area ]D. You must configure nssa only on the Area Border Routers (ABR's)Q. Which statement is true about prefix-lists? (choose 2) B,CA. They are always exact matches when used in firewall-filtersB. They are always orlonger matches when used in firewall-filtersC. They are always exact matches when used in routing policiesD. They are always orlonger matches when used in routing policiesQ. You are at the [ firewall family inet filter actions term u-decide] Yoiurconfiguration hierarchy.Which three commands are valid syntax? A,C,EA. set then reject tcp-resetB. set then source-class <SCU>C. set then accept log syslog sample count PKTSD. set then next-policyE. set then forwarding-classQ. Which statement is true if a route does not match any terms in a policy chain? D A. The route is automatically acceptedB. The route is automatically rejected',falseC. The accept/reject decision must be specified in the final policy',falseD. The accept/reject decision is based on the protocols default policyQ. Which OSPF LSA is not flooded in an OSPF Stub Area? D A. Router LSA\'s (Type 1)B. Network LSA\'s (Type 2)C. Summary LSA\'s (Type 3)D. ASBR Summary LSA\'s (Type 4)Q. Which statement is true for the order of the selection of the BGP active route? DA. AS-Path -> Local-Preference -> Origin -> MEDB. MED -> Origin -> AS-Path -> Local-PreferenceC. Local-Preference -> Origin -> AS-Path -> MEDD. Local-Preference -> AS-Path -> Origin -> MEDQ. Which statements are true about Internal BGP configurations? (choose 3) B,C,DA. Only directly connected neighbors need be configuredB. Usually the IP address of the loopback0 interface is used for the IBGP sessionsC. Use of the local-address configuration statement is requiredD. The IGP is used to route packets between remote neighborsE. When multiple links exist between neighbors, there needs to be multiple neighbors configured Q. In a network which does not use Route Reflectors, which statements are true about BGP readvertisement rules? (choose 2) B,EA. When learned from External BGP, readvertise to only IBGP neighborsB. When learned from External BGP, readvertise to both IBGP and other EBGP neighborsC. When learned from Internal BGP, readvertise to only IBGPD. When learned from Internal BGP, readvertise to both IBGP and EBGP neighborsE. When learned from Internal BGP, readvertise to only EBGPQ.You have multiple routes to the same destination using the default route preference.Which source of routing information will be selected? AA. OSPF InternalB. RIP2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种 C. OSPF External D. Internal BGP E. External BGPQ. Which of the following configuration statements must be added to the sample configuration to redistribute RIP prefixes into all OSPF areas? AA. set export rip-2-ospfB. set area 0 export rip-2-ospf set area 10 export rip-2-osp set area 20 export rip-2-ospfC. set area 20 nssa default-lsa default-metric 1D. set area all export rip-2-ospfQ. Which statements are true about service-filters? (choose 3) B,C,E A. A service-filter can only be used on inputB. A service-filter can be used on input, output or bothC. A service-filter cannot match multicast trafficD. A service-filter is a standard stateless firewall-filterE. A service-filter can only be used with interface-style service-setsQ. Which statements are true about the Networks Address Translations (NAT) options that JUNOS supports? (choose 3) A,C,D A. Source DynamicB. Destination DynamicC. Source StaticD. Destination StaticQ. Which statements are true about the Networks Address Translations (NAT) types that JUNOS supports? (choose 4) A,B,C,EA. Source Static 1:1 translationB. Destination Static 1:1 translationC. Source Dynamic many:1 translation (PAT)D. Destination Dynamic 1:1 translationE. Source Dynamic 1:1 translationQ. Which statements below are valid JUNOS stateful-firewall rule actions and action modifiers? (choose 2)Ａ，C A. discard B. log C. syslog D. sampleQ. Which statements are true about the IPSec VPN implementation for protecting transit data on M-Series and J-Series routers? (choose 2) C,DA. Only data integrity is supported with Authentication Header (AH)B. Only data privacy is supported with Encapsulating Security Payload (ESP)C. Both data integrity with Authentication Header (AH) and data privacy with Encapsulating Security Paylpoad (ESP) are supportedD. Only tunnel mode is supportedE. Only transport mode is supportedQ. Which statements are true about Application Layer Gateways (ALG\'s)? (choose 3) A,B,E A. ALG\'s allow the router to interact with protocols at layer 4 and above B. ALG\'s allow the router to inspect the payload of connections C. ALG\'s allow the router to translate protocols D. ALG\'s are required for all connections E. Custom ALG definitions can be configuredQ. Which statements below are valid JUNOS nat rule match types and actions? (choose 3) A,D,F A. from source-addressB. from destination-address-rangeC. from source-prefix-listD. then translated translation-type source dynamicE. then count &#60;counter-name&#62;F. then no-translationQ. Which statements below best describe the role of Class of Service (choose 2) B,D A. CoS is designed to make the network fasterB. CoS provides mechanisms for categorizing trafficC. CoS is designed to reduce congestionD. CoS allows network devices to prioritize traffic based on categoryE. CoS always improves network performance2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种Q. Which statements are true for Class of Service traffic classification (choose 3) B,D,EA. Behavior Aggregate (BA) classification is based on examining various fields in the IP headerB. Multifield (MF) classification is based on examining various fields in the IP headerC. Behavior Aggregate (BA) classifiers are most commonly used at the edge of the networkD. Behavior Aggregate (BA) classifiers are most commonly used in the network coreE. Behavior Aggregate (BA) classification is based on examining codepointsQ. The components of scheduling include priority, transmission-rate, buffer-size and congestion avoidance (RED).<br><br>Which statements are true about Scheduling on M-Series and J-Series routers (choose 4) A,B,C,DA. Priority defines the order of which queues will be servicedB. By default all queues are low priorityC. The queue priorities on J-Series routers are<br>a. High<br>b. Medium-high<br>c. Medium-low<br>d. LowD. By default the buffer-size is distributed equally amongst available queuesE. Congestion avoidance with RED by default results in 50% drop when the corresponding queue is 50% full Q. You need to verify that packets are being correctly classified and sent to the appropriate queue on a J-Series router with interface se-3/0/0.<br><br>Which commands or tools could be used to verify this information? (choose 2) A,DA. how interfaces queue se-3/0/0B. show class-of-service interface se-3/0/0C. show interfaces se-3/0/0 queue-statisticsD. show interfaces detail se-3/0/0Q. Which statements are true regarding Multilink Frame Relay (MLFR)? (choose 2) A,D A. FRF.15 is similar to Multilink PPP (MLPPP) and operates end-to-end B. FRF.16 is similar to Multilink PPP (MLPPP) and operates end-to-endC. FRF.15 makes it possible to connect a Customer Premise Equipment (CPE) device with multiple connections to the Provider Edge (PE) device as a single logical connectionD. FRF.16 makes it possible to connect a Customer Premise Equipment (CPE) device with multiple connections to the Provider Edge (PE) device as a single logical connectionQ. The enterprise network you manage is tightening security of all network devices. You are tasked toensure that optimum security of the routers is achieved without interruption to any legitimate protocols or services that are required to run and manage this network.<br><br>Which commands should be run to ensure all services and protocols are included in the router protection filters? (choose 4) A,B,D,F A. Configuration mode show system B. Configuration mode show snmpC. Configuration mode show servicesD. Configuration mode show protocolsE. Configuration mode show firewallF. Operation mode show system connectionsG. Operation mode show system statisticsQ. Which statements are true about the use of next-hop style service sets over interface-style service sets when using IPSec VPNs? BA. Supports securing traffic to remote endpointB. Supports routing protocols directly over IPSecC. Supports multiple remote endpointsD. Supports having multiple local endpoints in the same service-setQ. M-Series and J-Series routers? (choose 2) C,DA. Only data integrity is supported with Authentication Header (AH)B. Only data privacy is supported with Encapsulating Security Payload (ESP)C. Both data integrity with Authentication Header (AH) and data privacy with Encapsulating Security Paylpoad (ESP) are supportedD. Only tunnel mode is supportedQ. Which statements are true about IPSec-over-GRE Tunnels? (choose 2) A,D A. ipsec-over-gre are GRE tunnels that are secured by IPSec B. ipsec-over-gre are IPSec tunnels that are routed over GREC. If the GRE and IPSec endpoints are the same, you should use a next-hop style service-setD. If the GRE and IPSec endpoints are the same, you should use a interface style service-setQ. The IPSec VPN you have just configured is not establishing. To troubleshoot this you have configured the router with traceoptions as below.<br><br>[edit services ipsec-vpn]<br>user@Junos-router# show traceoptions <br>file size 1m files 5;<br>flag ike;<br>[edit services ipsec-vpn]<br><br>Which commands could be used to monitor this? (choose 2) C,F A. show log ipsec-vpn B. show log messages C. show log kmdD. monitor start ipsec-vpn2007-10-28蚂蚁倾情奉献享是一种美分享是一种美德分享是一种美德享是一种 E. monitor start messages F. monitor start kmdQ. Which command can be used to determine whether the SNMP process is running? C A. show process snmp B. show snmp daemonC. show system processesD. show task snmpQ. Which command can be used monitor the temperature of the components in a Juniper Networks enterprise router? CA. show chassis temperatureB. show system temperatureC. show chassis environmentD. show temperatureQ. Which statements are true about multilink-ppp? Which mechanism is best suited? B A. multilink-ppp can only be configured on ISDN interfaces on a J-Series routerB. multilink-ppp allows for the increase in overall throughput by combining the bandwidth of two or more physical linksC. multilink-ppp can only be configured in combination with a valid CRTP configurationD. multilink-ppp requires multiple IP pt-to-pt links over PPP to provide redundancy Q. Which statements are true about Compressed Real-Time Transport Protocol? (choose 2) A,C A. CRTP is intended to reduce serialization delay B. CRTP must be configured with multiple links C. CRTP can be configured with a single link D. CRTP compresses both UDP and TCP headersQ. The routers configuration in the exhibit does not have the router-id configured. Which area will the loopback interface of the router be included in the Router LSA (Type 1)? D A. Area 0.0.0.0 B. Area 0.0.0.20 C. No AreasD. Area 0.0.0.0 and Area 0.0.0.202007-10-28蚂蚁倾情奉献。