2012年思科认证（CCNA）考试练习题精选7
31. IP helper addresses are a form of _ _ _ _ _ _ _ _ _ _ _ _ _ _ addressing and require the command specification of _ _ _ _ _ _ _ _ _on every interface receiving broadcasts that need to be forwarded (IP辅助地址是一种什么类型的寻址方法，在每一个接收到需要转发的广播接口上需要什么命令说明.？
A. Static / IP header address
B. Dynamic / IP forward-protocol UDP
C. Dynamic / IP forward-protocol TCP
32. Which of the following protocols provide address resolution (下面的哪一个协议提供了地址解析.？
A. ICMP
B. RARP
C. IP
D. UDP
E. TCP
33. IP is described as an unreliable mechanism because it does not guarantee delivery (IP被认为是不可靠的机制，因为它不保证发送.。
A. True
B. False
34. What does fragmentation in TCP/IP represent (在T C P / I P中的分段代表什么.？
A. Segmenting of datagrams into 53-byte packets for ATM applications
B. Division of larger datagrams into convenient size packets
C. A process that occurs on a router
D. A, B, and C
E. A and C only
F. B and C only
35. ICMP、I P、ARP and RARP of the IP protocol suite map to (IP协议套件的I C M P、I P、A R P和R A R P映射到.：
A. OSI layers 1 and 2
B. OSI layer 5
C. OSI layer 3
D. OSI layer 2