Which command is used to see the path taken by packets across an IP network?（）

单项选择题Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?（）

A. enable cdp
B. cdp enable
C. cdp run
D. run cdp

单项选择题Which command is used to configure a default route?（）

A. ip route 172.16.1.0 255.255.255.0 0.0.0.0
B. ip route 172.16.1.0 255.255.255.0 172.16.2.1
C. ip route 0.0.0.0 255.255.255.0 172.16.2.1
D. ip route 0.0.0.0 0.0.0.0 172.16.2.1

单项选择题A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored? （）

A. NVRAM
B. RAM
C. FLASH
D. ROM
E. PCMCIA

单项选择题Which command is used to load a configuration from a TFTP server and merge the configuration into RAM？（）

A. copy running-config: TFTP:
B. copy TFTP: running-config
C. copy TFTP: startup-config
D. copy startup-config: TFTP:

单项选择题Which command is used to copy the configuration from RAM into NVRAM？（）

A. copy running-config startup-config
B. copy startup-config: running-config
C. copy running config startup config
D. copy startup config running config
E. write terminal