Computer Networking
Which statements are true regarding ICMP packets?1. They acknowledge receipt of a TCP segment.2. They guarantee datagram delivery.3. They can provide hosts with information about network problems.4. They are encapsulated within IP datagrams.

2 and 3
2, 3 and 4
1 only
3 and 4

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Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

the method of determining which device has access to the transmission medium at any time.
a medium access control technique for multiple access transmission media
All of these
None of these
a form of TDMA in which circuit switching is used to dynamically change the channel assignments

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Computer Networking
Demodulation is the process of

combining many low speed channels into one high speed channel
converting analog signals to digital signals
converting digital signals to analog signals
dividing the high-speed signals into frequency bands
None of these

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