单选题______A out B on C forward D through

第1题

I have been looking____your kind reply.A.out for B.down on C.in on D.forward to

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第2题

On hearing a great noise, Mike looked forward through the window （）what happened outside the room．A、to seeingB、to seeC、seeingD、to have seen

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第3题

What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）A、The switch will not forward unicast frames.B、The switch will forward the frame to a specific port.C、The switch will return a copy of the frame out the source port.D、The switch will remove the destination MAC from the switch table.E、The switch will forward the frame to all ports except the port on which it was received.

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第4题

Which statement best describes the Cisco 2700 Location Appliance collection of location information for wireless devices?（）A、all Wi-Fi devices on the WLAN send directly received signal strength indication （RSSI） information to the Cisco Wireless Location Appliance through SNMPB、an AP collects RSSI information which is forwarded to wireless controllers through LWAPP. Wireless controllers forward aggregated RSSI to the location appliance through SNMPC、the APs collect received signal strength indication （RSSI） information from all Wi-Fi devices and forward the information to the Cisco Wireless Location Appliance through the LWAPPD、the Cisco WLAN controllers bypass the received signal strength indication （RSSI） information from all Wi-Fi devices to the Cisco Wireless Location Appliance through the LWAPP

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第5题

What are two characteristics of "store and forward" switching?（）A、Latency fluctuates regardless of frame size.B、The switch receives the complete frame before beginning to forward it.C、Latency through the switch varies with frame length.D、The switch checks the destination address upon receipt of headers.

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第6题

What is the purpose of unicast reverse path forwarding?（）A、to validate packet receipt on interfaces where the traffic should be receivedB、to forward packets out the interfaces where the traffic should be receivedC、to forward packets out the interfaces where the traffic should be sentD、to validate packet receipt on interfaces where the traffic should be sent

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第7题

单选题船艏单绑留头缆!（）A Single up forward to headline!B All let go aft!C Send out head line!D Hold on the head line!

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