单项选择题
When configuring a serial interface on a router, what is the default encapsulation?（）
A. atm-dxi
B. frame-relay
C. hdlc
D. lapb
E. ppp
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相关考题
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单项选择题
Which command displays CPU utilization?（）
A. show protocols
B. show process
C. show system
D. show version -
单项选择题
Which command is used to debug a ping command?（）
A. debug icmp
B. debug ip icmp
C. debug tcp
D. debug packet -
单项选择题
Which command is used to see the path taken by packets across an IP network?（）
A. show ip route
B. show route
C. traceroute
D. trace ip route
