Which of the following protocols would a multilayer switch use to learn the IP address of a directly connected device？（）

Whichofthefollowingisthedefaultportfortelnet？（）

A.20
B.21
C.22
D.23

点击查看答案

Given the following routing table entries， which of the following will the next-hop address be for a packet destined for the address 192.168.1.203？（）

A.77.0.5.5
B.40.40.0.254
C.66.40.90.121
D.72.40.91.1

点击查看答案