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Computer Networking

Computer Networking
The EIA-232 interface has _____ pins.

25
30
None of these
20
24

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Computer Networking
What is the default subnet mask for a class B network?

255.0.0.0
255.255.255.0
127.0.01
None of these
255.255.0.0

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Computer Networking
Which of the following would be good reasons to run NAT?1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.2. You change to a new ISP that requires you to renumber your network.3. You don't want any hosts connecting to the Internet.4. You require two intranets with duplicate addresses to merge.

All of these
1, 2 and 4
3 only
2 and 4

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Computer Networking
Which multiplexing technique shifts each signal to a different carrier frequency?

FDM
All of these
asynchronous TDM
synchronous TDM

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Computer Networking
End-to-end connectivity is provided from host-to-host in:

Session layer
Network layer
Transport layer
None of these
Data link layer

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Computer Networking
Segmentation of a data stream happens at which layer of the OSI model?

Transport
Physical
Network
Data Link

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