Computer Networking
Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?1. Half-duplex Ethernet operates in a shared collision domain.2. Half-duplex Ethernet operates in a private collision domain.3. Half-duplex Ethernet has higher effective throughput.4. Half-duplex Ethernet has lower effective throughput.

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

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Computer Networking
Communication network is

one or more conductors that serve as a common connection for a related group of devices
a continuous frequency capable of being modulated or impressed with a second signal
the condition with two or more stations attempt to use the same channel at the same time
None of these
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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Computer Networking
Modulation is the process of

performing data encryption.
Multiplexing various signals into high speed line signals
converting digital signals to analog signals
converting analog signals to digital signals

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