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Computer Networking

Computer Networking
If you wanted to delete the configuration stored in NVRAM, what would you type?

erase running
erase nvram
erase startup
delete nvram

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Computer Networking
You want to run the new 802.1w on your switches. Which of the following would enable this protocol?

Switch(config)# spanning-tree mode rapid-pvst
Switch(config)# spanning-tree mode 802.1w
Switch# spanning-tree mode 802.1w
Switch# spanning-tree mode rapid-pvst

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Computer Networking
Modulation in which the two binary values are represented by two different amplitudes of the carrier frequency is known as

Amplitude modulation
Amplitude
Amplitude-shift keying
None of these
Aloha

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Computer Networking
In OSI network architecture, the dialogue control and token management are responsibilities of

network layer
transport layer
session layer
data link layer
None of these

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Computer Networking
Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

255.255.255.0, 255.255.0.0, 255.0.0.0
255.0.0.0, 255.255.0.0, 255.255.255.0
0.0.0.0, 0.0.0.1, 0.0.1.1
255.255.0.0, 255.255.255.0, 255.255.255.255
None of these

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

100 microwatts
100 picowatts
440 microwatts
None of these
10 milliwatts

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