Any device that performs signal conversion is...

MCQ

Any device that performs signal conversion is

Modulator

Modem

Keyboard

Plotter

None of the above

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Most networks are connected to other local area or wide area networks. Select the best fit for answer:

Internet works

The Internet

Internet revolution

Internet technologies

255.255.252.0

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MCQ

Carrier 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 when two or more sections attempt to use the same channel at the same time

a collection of interconnected functional units that provides a data communications service among stations attached to the network

None of the above

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MCQ

Which of the following items is not used in Local Area Networks (LANs)

Computers

Modem

Printer

Cable

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MCQ

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.

Network collisions occur

Repeaters cannot increase the signal strength sufficiently

Cable terminators do not reflect the signal properly

Cable terminators do not absorb the signal properly

"Line echo" occurs due to the impedance of the cable

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MCQ

Which of the following technique is used for encapsulation?

a technique used in best-effort delivery systems to avoid endlessly looping packets.

a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.

One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size

All of the above

None of the above

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History and Generations

CPU and its components

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