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Computer Networking

Computer Networking
Which command will delete the contents of NVRAM on a router?

erase NVRAM
delete NVRAM
erase start
delete startup-config

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Computer Networking
What is the maximum number of entries in the HOSTS file?

255
8
500
Unlimited
None of these

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Computer Networking
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and

synchronous port
asynchronous port
PC
None of these
crossover cable

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Computer Networking
How much power (roughly) a light-emitting diode can couple into an optical fiber?

440 microwatts
100 picowatts
10 milliwatts
None of these
100 microwatts

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

40
3
12
23

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Computer Networking
What is the minimum number of wires required for sending data over a serial communications links?

1
None of these
4
2
3

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