Networking MCQ Questions and answers- Technical Aptitude

21

What OSI layer handles logical address to logical name resolution?

A) Transport B) Physical C) Presentation D) Data Link E) An alias for the computer name

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Answer & Solution

Answer: Option A

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22

The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

A) A logical address that identifies the workstation B) A physical address that is randomly assigned each time the computer is started C) A physical address that is assigned by the manufacturer D) The logical domain address for the workstation E) An alias for the computer name

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Answer & Solution

Answer: Option C

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23

Which of the following is an example of a client-server model?

A) TELNET B) FTP C) DNS D) All of the above E) None of the above

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Answer & Solution

Answer: Option D

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24

In CRC there is no error if the remainder at the receiver is _____.

A) the quotient at the sender B) nonzero C) zero D) equal to the remainder at the sender E) None of the above.

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Answer & Solution

Answer: Option C

Solution:

In CRC (Cyclic Redundancy Check), if the remainder at the receiver is zero, it means that there are no errors detected during the transmission. This is because the CRC process involves dividing the received data by a predetermined divisor, and if the remainder is zero, it indicates that the data has been transmitted without any errors.

Therefore, in CRC, there is no error if the remainder at the receiver is zero.

25

A WATS arrangement

A) is always less expensive than flat-rate service B) is less expensive than flat-rate service only when the number of calls is large and the duration of each is short C) is less expensive than flat-rate service only when the number of calls is small and the duration of each is long D) is never less expensive than flat-rate service E) None of the above

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Answer & Solution

Answer: Option B

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26

A T-switch is used to

A) control how messages are passed between computers B) echo every character that is received C) transmit characters one at a time D) rearrange the connections between computing equipment E) None of the above

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Answer & Solution

Answer: Option D

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27

A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:

A) Internet works B) The Internet C) Internet revolution D) Internet technologies E) None of the above

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Answer & Solution

Answer: Option B

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28

Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?

A) Star B) Right C) Token-Ring D) Ethernet E) Bus

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Answer & Solution

Answer: Option E

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29

The CCITT Recommendation X.25 specifies three layers of communications:

A) application, presentation and session B) Session, transport and network C) physical datalink and network D) datalink, network and transport E) None of the above

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Answer & Solution

Answer: Option C

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30

Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?

A) Amplitude modulation B) Frequency-division multiple access C) Frequency modulation D) Frequency-shift keying E) None of the above

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Answer & Solution

Answer: Option B

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