Computer Networking
The frequency range : 300 kHz to 3 MHz is used for

TV transmission
AM radio transmission
FM radio transmission
microwave communications, satellite and radar
None of these

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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
Repeaters cannot increase the signal strength sufficiently
Cable terminators do not reflect the signal properly
Cable terminators do not absorb the signal properly
Network collisions occur

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