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Computer Networking

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

40
3
12
23

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Computer Networking
00 represents a pixel that pixel is known as :

Black pixel
Light gray
Dark gray pixel
White pixel

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Computer Networking
Devices interconnected by the LAN should include

mass storage device, printers and plotters
All of these
bridges and gateways
None of these
Computers and terminals

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Computer Networking
How many hosts are attached to each of the local area networks at your site?

128
254
None of these
256
64

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Computer Networking
How often are BPDUs sent from a layer 2 device?

Every 2 seconds
Every 10 minutes
Every 30 seconds
Never

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Computer Networking
Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called

telecommuters
teleprocessors
company directors
None of these
field workers

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