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

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

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Computer Networking
Which three statements are true about the operation of a full-duplex Ethernet network?1. There are no collisions in full-duplex mode.2. A dedicated switch port is required for each full-duplex node.3. Ethernet hub ports are preconfigured for full-duplex mode.4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.5. The host network card and the switch port must be capable of operating in full-duplex mode.

5 only
2, 3 and 4
2 and 4
1, 2, and 5

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