Networking MCQ Questions and answers- Technical Aptitude

61

Which of the following is not a transmission medium?

A) telephone lines B) coaxial cable C) modem D) microwave systems E) satellite systems

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Answer & Solution

Answer: Option C

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62

Which of the following statement is incorrect?

A) Gateways are assumed to know correct routes; hosts begin with minimal routing information and learn new routes from gateways. B) Layered protocols are designed so that layer n at the destination receives exactly the same object sent by layer n at the source. C) Application programs as well as all protocol software from the Internet layer upward use only IP addresses; the network interface layer handles physical addresses. D) All of the above E) None of the above

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Answer & Solution

Answer: Option D

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63

A batch processing terminal would not include a

A) CPU B) card reader C) card punch D) line printer E) None of the above

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Answer & Solution

Answer: Option A

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64

Packet Switch Stream (PSS) was introduced in

A) the US in 1961 (&) the UK in 1981 B) the UK in 1980 C) the US in 1961 D) None of the above E) None of the above

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Answer & Solution

Answer: Option B

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65

The physical layer of a network

A) defines the electrical characteristics of signals passed between the computer and communication devices B) controls error detection and correction C) constructs packets of data and sends them across the network D) All of the above E) None of the above

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Answer & Solution

Answer: Option A

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66

Which of the following allows devices on one network to communicate with devices on another network?

A) multiplexer B) gateway C) t-switch D) modern E) None of the above

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Answer & Solution

Answer: Option B

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67

An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as

A) Cyclic redundancy check B) Checksum C) Error detecting code D) Error rate E) None of the above

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Answer & Solution

Answer: Option A

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68

Bulletin board system

A) is a public access message system B) is a modem capable of accepting commands C) converts analog signals to digital signals D) converts digital signals to analog signals E) None of the above

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Answer & Solution

Answer: Option A

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69

In OSI model, which of the following layer provides error-free delivery of data?

A) Data link B) Network C) transport D) Session E) None of the above

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Answer & Solution

Answer: Option C

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70

Error detection at the data link level is achieved by?

A) Bit stuffing B) Hamming codes C) Cyclic Redundancy codes D) Equalization E) None of the above

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Answer & Solution

Answer: Option C

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