Computer Networking
What is the purpose of Spanning Tree Protocol in a switched LAN?

To provide a mechanism for network monitoring in switched environments
To create collision domains
To manage the VLAN database across multiple switches
To prevent routing loops in networks with redundant paths
To prevent switching loops in networks with redundant switched paths

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Computer Networking
The main difference between TCP and UDP is

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

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