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Computer Networking

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

3
23
40
12

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Computer Networking
A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer:

Cellular phone systems
Telecommunications processors
Telecommunications software
Fiber optic cables

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Computer Networking
What is the subnetwork address for a host with the IP address 200.10.5.68/28?

200.10.5.32
200.10.5.0
200.10.5.64
200.10.5.56

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Computer Networking
A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?

80,000 B frame
8 x 105 bit frame
8000 B frame
10,000 B frame

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Computer Networking
The core diameter of a single-mode fibers is about

7 times the light carried in the fiber
10 times the wavelength of the light carried in the fiber
3 times the wavelength of the light carried in the fiber
None of these
10 times the fiber radius

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Computer Networking
The EIA-232 interface has _____ pins.

None of these
25
24
30
20

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