Computer Networking
Which of the following layer protocols are responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?

Layer 4 protocols
Layer 5 protocols
Layer 7 protocols
None of these
Layer 6 protocols

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Computer Networking
You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?

The host has an invalid MAC address.
The switch port the host is connected to is not configured to the correct VLAN membership.
The VTP configuration on the switch is not updated for the new host.
The router is not configured for the new host.

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Computer Networking
Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.

"Line echo" occurs due to the impedance of the cable
Cable terminators do not absorb the signal properly
Repeaters cannot increase the signal strength sufficiently
Network collisions occur
Cable terminators do not reflect the signal properly

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