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Computer Networking

Computer Networking
How many pairs of stations can simultaneously communicate on Ethernet LAN?

1
None of these
3
2
multiple

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Computer Networking
The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.

Residual Error Rate.
Connection establish.
Transfer Failure Probability.
Connection release failure probability.

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Computer Networking
What is the maximum distance running the lowest data rate for 802.11a?

About 350 feet
About 100 feet
About 175 feet
About 300 feet

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Computer Networking
Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?

7 slots
5 slots
14 slots
None of these
10 slots

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Computer Networking
Which of the following allows devices on one network to communicate with devices on another network?

modern
t-switch
None of these
multiplexer
gateway

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Computer Networking
Start and stop bits are used in serial communication for

Slowing down the communication
Error correction
Error detection
Synchronization

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