思科网络技术学院复习题2

思科网络技术学院复习题

广西大学思科网络技术学院2006.9

第一部分、网络基础

1、

Refer to the exhibit. What i s the order of the TCP/IP Protocol Data Units as data i s moved as indicated through the OSI model?

A. data, segments, frames, packets, bits

B. data, packets, segments, frames, bits

C. data, segments, packets, frames, bits

D. data, packets, frames, segments, bits

2、Which protocol s are TCP/IP applicati on layer protocols? (Choose two.)

A. UDP

B. FTP

C. IP

D. SMTP

E. TCP

3、Which of the following are primary functions of a router? (Choose two.)

A. packet switching

B. microsegmentation

C. domain name resolution

D. path selection

E. flow control

4、

Which devices can be used to convert the data from a WAN router at the customer site into a form acceptable for use by the WAN service provi der? (Choose three.)

A. Ethernet switch

B.DTE

C. Modem

D. hub

E. DCE device

F. CSU/DSU

5、A network user is using the FTP protocol to transfer data from the local host to an FTP server. The local host is also using the SNMP protocol to report the system status to the network management system. Which statement describes the communication from the host?

A. FTP and SNMP will use the same port number.

B. FTP uses TCP to establish a session before any data is transferred.

C. The UDP session will reorder the SNMP data as it i s received by the network management system.

D. The TCP protocol for the FTP transfer will use a random destination port number to the FTP server.

6、Which technologies are considered to be WAN technol ogies? (Choose two.)

A．Ethernet B.DSL C. Token Ring

D. Frame Relay

E. FDDI

7、What are three characteristics of the TCP protocol? (Choose three.)

A．exchanges datagrams unreliably

B．is used to send IP error messages

C．forces the retransmission of unacknowledged packets

D．creates a virtual session between end-user applicati ons

E．carries the IP address of the destination host in the TCP header

F．is responsible for breaking messages into segments and reassembling them at their destination

8、Which binary number is a representation of the decimal number 248?

A．11101000 B.11110100

C. 11111000

D.11111010

第二部分以太网技术

1、

Refer to the exhibit. Which type of cabling should be used at each of the connection points shown?

A、

A-crossover

B- straight-through C-straight-through D-fiber

E-straight-through B、

A-crossover

B-crossover

C-straight-through D-fiber

E-crossover

C、

A-straight-through B-crossover

C-straight-through D-fiber

E-straight-through D、

A-fiber

B-crossover

C-straight-through D-crossover

E-straight-through E、

A-straight-through B-crossover

C-crossover

D-fiber

E-straight-through F、

A-crossover

B-crossover

C-straight-through D-fiber

E-straight-through