多项选择题
Which of the following are characteristics of named access lists?（）
A. Individual statements in a named access list may be deleted.
B. They require a numbered range from 1000 to 1099.
C. When created, they must be specified as standard or extended.
D. They are created with the ip access-list command.
E. The entire access list must be deleted before editing.
F. They are applied with the ip name-group command.
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单项选择题
A default Frame Relay WAN is classified as what type of physical network?（）
A. point-to-point
B. broadcast multi-access
C. nonbroadcast multi-access
D. nonbroadcast multipoint
E. broadcast point-to-multipoint -
单项选择题
A network administrator is designing a Cisco network for a large company. The network must be able to use minimal bandwidth for routing updates, converge quickly, and support VLSM, CIDR, IP and IPX. Which routing protocol will best fit the requirements of this network?（）
A. RIP v1
B. RIP v2
C. IGRP
D. OSPF
E. EIGRP -
单项选择题
You are unable to telnet to a router at address 203.125.12.1 from a workstation with the IP address 203.125.12.23. You suspect that there is a problem with your protocol stack. Which of the following actions is most likely to confirm your diagnosis?（）
A. ping 127.0.0.0
B. ping 203.125.12.1
C. telnet 127.0.0.1
D. ping 127.0.0.1
E. tracert 203.125.12.1
