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Computer Networking

Computer Networking
How many non-overlapping channels are available with 802.11a?

23
3
40
12

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Computer Networking
A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?

show buffers
show memory
show version
show flash

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Computer Networking
The data communication support should include, but is not restricted to

file transfer and transaction processing
file and database access
All of these
terminal support, electronic mail and voice grams.

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Computer Networking
How many broadcast domains are created when you segment a network with a 12-port switch?

1
5
12
2

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Computer Networking
In a _____ topology, if there are n devices in a network, each device has n - 1 ports for cables.

ring
star
None of these
mesh
bus

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Computer Networking
The amount of uncertainty in a system of symbol is called

Entropy
loss
None of these
Bandwidth
Quantum

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