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單項(xiàng)選擇題

In which solution is a router ACL used?（）

A. protecting a server frome unauthorized acces
B. controlling path selection,based on the route metric
C. reducing router CPU utilization
D. filterring packets that are passing through a router

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單項(xiàng)選擇題

Which command can be used from a PC to verfy the connectivity between host that connect through path?（）

A. tracert address
B. ping address
C. arp address
D. traceroute address

單項(xiàng)選擇題

What is the function of the command switchport trunk native vlan 999 on a switch?（）

A. It designates VLAN 999 for untagged traffic.
B. It blocks VLAN 999 traffic from passing on the trunk.
C. It creates a VLAN 999 interface.
D. It designates VLAN 999 as the default for all unkown tagged traffic.

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