多項選擇題What are two reasons a network administrator would use CDP? （）

A.to verify the type of cable interconnecting two devices
B.to determine the status of network services on a remote device
C.to obtain VLAN information from directly connected switches
D.to verify Layer 2 connectivity between two devices when Layer 3 fails
E.to obtain the IP address of a connected device in order to telnet to the device
F.to determine the status of the routing protocols between directly connected routers


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1.多項選擇題Which two locations can be configured as a source for the IOS image in the boot system command?（）

A.RAM
B.NVRAM
C.flash memory
D.HTTP server
E.TFTP server
F.Telnet server

2.多項選擇題A network administrator is explaining VTP configuration to a new technician. What should the network administrator tell the new technician about VTP configuration? （）

A.A switch in the VTP client mode cannot update its local VLAN database.
B.A trunk link must be configured between the switches to forward VTP updates.
C.A switch in the VTP server mode can update a switch in the VTP transparent mode.
D.A switch in the VTP transparent mode will forward updates that it receives to other switches.
E.A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number.
F.A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.

4.多項選擇題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? （）

A.the amount of available ROM
B.the amount of available flash and RAM memory
C.the version of the bootstrap software present on the router
D.show version
E.show processes
F.show running-config

5.多項選擇題下列哪一項正確描述了運行的OSPF的路由器的進程標識符的作用？（）

A.是一個本地的標識
B.是一個全局的標識.
C.為了標識OSPF數(shù)據(jù)庫中的唯一的實例
D.是一個可選的參數(shù)，只有多個OSPF進程在同一個路由器上運行時才需要
E.所有在同一個OSPF區(qū)域的路由器必須用同一個進程號，否則它們無法交換路由信息。