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

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

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Computer Networking
CSMA (Carrier Sense Multiple Access) is

a method of determining which device has access to the transmission medium at any time
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media.
a very common bit-oriented data link protocol issued by ISO.
None of these

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