Computer Networking
ICMP (Internet Control Message Protocol) is

None of these
a TCP/IP high level protocol for transferring files from one machine to another
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
a protocol that handles error and control messages
a protocol used to monitor computers

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Computer Networking
The main difference between TCP and UDP is

UDP is connection oriented where as TCP is datagram service
TCP is an Internet protocol where as UDP is an ATM protocol
None of these
All of these
UDP is a datagram where as TCP is a connection oriented service

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