单项选择题
A.traceroute address
B.tracert address
C.ssh address
D.telnet address
单项选择题 Which of the following is true regarding the use of switches and hubs for network connectivity（）。
单项选择题 Which command will show the MAC addresses of stations connected to switch ports?（）
多项选择题 Refer to the exhibit.The network administrator requires easy configuration options and minimal routingprotocol traffic.Which two options provide adequate routing table information for traffic that passes betweenthe two routers and satisfy the requests of the network administrator？（）