多項(xiàng)選擇題

You are attempting to troubleshoot some problems within your local network.Which of the following are router IOS commands that can be used to troubleshoot LAN connectivity problems?（）

A. ping
B. tracert
C. ipconfig
D. show ip route
E. winipcfg
F. show interfaces
G. All of the above

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單項(xiàng)選擇題

What command verifies connectivity between two hosts by sending and receiving ICMP echo messages?（）

A. ping
B. tracert
C. netstat
D. show cdp neighbors detail
E. show ip route
F. traceroute

單項(xiàng)選擇題

A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）

A. The switch port link lights will be off on both switches indicating the ports are not connected.
B. The switch port link light will be off on one switch indicating that STP has disabled the port.
C. The switch port link lights will flash amber indicating an error.
D. The switch port link lights will be green indicating normal operation.