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
3 and 4
1 only
2, 3 and 4

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Computer Networking
Bandlimited signal is

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

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