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

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Computer Networking
Baseband is

transmission of signals without modulation
None of these
the simultaneous transmission of data to a number of stations
All of these
a signal all of whose energy is contained within a finite frequency range

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