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

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

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Computer Networking
The main difference between synchronous and asynchronous transmission is

the clocking is mixed with the data in asynchronous transmission
None of these
the bandwidth required is different
the pulse height is different.
the clocking is derived from the data in synchronous transmission

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