Networking MCQ Questions and answers- Technical Aptitude

71

The slowest transmission speeds are those of

A) twisted-pair wire B) coaxial cable C) fiber-optic cable D) microwaves

Discuss

Answer & Solution

Answer: Option A

Solution:

Twisted-pair wire has the slowest transmission speeds among the given options.

It is commonly used in telephone networks and older data communication networks.

Coaxial cable has higher transmission speeds compared to twisted-pair wire and is used in cable TV and internet services.

Fiber-optic cable offers the highest transmission speeds as it uses light to transmit data.

Microwaves are used for wireless transmission and offer higher speeds compared to twisted-pair wire.

72

A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate?

A) 3 Kbps B) 6 Kbps C) 12 Kbps D) 24 Kbps.

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

73

Carrier is

A) One or more conductors that serve as a common connection for a related group of devices B) a continuous frequency capable of being modulated or impressed with a second signal C) the condition when two or more sections attempt to use the same channel at the same time D) a collection of interconnected functional units that provides a data communications service among stations attached to the network E) None of the above

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Answer & Solution

Answer: Option B

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74

What can greatly reduce TCP/IP configuration problems?

A) WINS Server B) WINS Proxy C) DHCP Server D) PDC E) None of the above

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Answer & Solution

Answer: Option C

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75

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

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

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Answer & Solution

Answer: Option B

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76

Which of the following statements is correct for the use of packet switching?

A) the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individ B) the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied C) by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved. D) All of the above E) None of the above

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Answer & Solution

Answer: Option D

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77

A front-end processor is

A) a user computer system B) a processor in a large-scale computer that executes operating system instructions C) a minicomputer that relieves main-frame computers at a computer centre of communications control functions D) preliminary processor of batch jobs. E) None of the above

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Answer & Solution

Answer: Option C

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78

What is the port number for NNTP?

A) 119 B) 80 C) 79 D) 70 E) None of the above

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Answer & Solution

Answer: Option A

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79

Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?

A) 7 slots B) 5 slots C) 10 slots D) 14 slots E) None of the above

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Answer & Solution

Answer: Option A

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80

Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS?

A) 10 B) 12 C) 120 D) 1200 E) None of the above

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Answer & Solution

Answer: Option C

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