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單項選擇題

A natural disaster has occurred and the administrator must return the network to a healthy status.Which of the following should the administrator do in this case?（）

A. Follow the emergency action plan.
B. Wait for an issue to be reported.
C. Establish a new baseline.
D. Determine if escalation is necessary.

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單項選擇題

Which of the following network devices would MOST likely be installed on a network to helpreduce broadcast traffic and to allow individual virtual networks?（）

A.Switch
B.Repeater
C.Hub
D.WAP

單項選擇題

Users report an intermittent degradation of sound on their IP phones. Which of the following woulda network administrator do to alleviate the problem?（）

A. Use plenum cables
B. Provide fault tolerance for the switch
C. Configure VLAN trunking on the switch
D. Configure QoS

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