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Computer Networking

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

23
40
3
12

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Computer Networking
Select the correct cable that transport signals in the form of light:

Fiber optic cable
Coaxial Cable
Twisted-Pair cable
Shielded Twisted Pair cable

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Computer Networking
What PPP protocol provides dynamic addressing, authentication, and multilink?

X.25
NCP
LCP
HDLC

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Computer Networking
A modulator converts a _____ signal to a(n) _____ signal.

digital; analog
None of these
PSK; FSK
analog; digital
FSK; PSK

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Computer Networking
The systematic access of small computers in a distributed data processing system is referred to as:

None of these
conversational mode
polling
multiplexing
dialed service

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Computer Networking
You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?

255.255.252.0
225.255.254.0
255.255.255.252
255.255.255.240

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