Computer Networking
Which of the following modes are valid when a switch port is used as a VLAN trunk?1. Blocking2. Dynamic auto3. Dynamic desirable4. Nonegotiate5. Access6. Learning

4, 5 and 6
2, 3 and 4
1, 2 and 6
2, 4, and 5

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

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

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