Data Communication and Networking Questions

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31.

OSI model means:

A

Open systems interconnection

B

Operating system interconnection

C

Open source interconnection

D

Operating source interconnection

Correct Answer: A

None.

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32.

Select the correct cable that transport signals in the form of light:

A

Twisted-Pair cable

B

Fiber optic cable

C

Coaxial Cable

D

Shielded Twisted Pair cable

Correct Answer: B

None.

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33.

Twisted pair wires, coaxial cable, optical fiber cables are the examples of:

A

Wired Media

B

Wireless Media

C

Both A & B

D

None of these

Correct Answer: A

None.

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34.

Which of the followings is used in communications is referred to as unshielded twisted-pair (UTP)?

A

Coaxial cable

B

Fiber-optic cable

C

Twisted-pair cable

D

None of these

Correct Answer: C

None.

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35.

What is Cladding?

A

Cables with shield

B

Coxial Cable

C

A typical optical fiber consists of a very narrow

D

None of these

Correct Answer: C

None.

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36.

Which network is a cross between circuits switched network and a data-gram network?

A

Circuit-switched network

B

Virtual-circuit network

C

Virtual-circuit identifier

D

None of these

Correct Answer: B

None.

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37.

Select the cable that uses copper conductor, accept and transport signals in the form of electric current?

A

Fiber-optic cable

B

Metallic cable

C

Twisted pair cable

D

All of the above

Correct Answer: C

None.

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38.

Number of Unguided Media is:

A

6

B

5

C

4

D

3

Correct Answer: D

None.

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39.

Switching at the network layer in the Internet uses the datagram approach to:

A

Message switching

B

Circuit switching

C

IP switching

D

Packet switching

Correct Answer: D

None.

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40.

Which is also known as a connectionless protocol for a packet-switching network that uses the Datagram approach?

A

IPV5

B

IPV4

C

IPV6

D

None of these

Correct Answer: B

None.

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