Computer Networks MCQs with answers Page - 6

Here, you will find a collection of MCQ questions on Computer Networks. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which transmission media has the highest transmission speed in a network?

  • (A) coaxial cable
  • (B) twisted pair cable
  • (C) optical fiber
  • (D) electrical cable

A

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Q. Bits can be send over guided and unguided media as analog signal by

  • (A) digital modulation
  • (B) amplitude modulation
  • (C) frequency modulation
  • (D) phase modulation

A

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Q. The portion of physical layer that interfaces with the media access control sublayer is called

  • (A) physical signalling sublayer
  • (B) physical data sublayer
  • (C) physical address sublayer
  • (D) none of the mentioned

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Q. physical layer provides

  • (A) mechanical specifications of electrical connectors and cables
  • (B) electrical specification of transmission line signal level
  • (C) specification for ir over optical fiber
  • (D) all of the mentioned

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Q. In asynchronous serial communication the physical layer provides

  • (A) start and stop signalling
  • (B) flow control
  • (C) both (a) and (b)
  • (D) none of the mentioned

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Q. The physical layer is responsible for

  • (A) line coding
  • (B) channel coding
  • (C) modulation
  • (D) all of the mentioned

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Q. The physical layer translates logical communication requests from the ______ into hardware specific operations.

  • (A) data link layer
  • (B) network layer
  • (C) trasnport layer
  • (D) application layer

A

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Q. A single channel is shared by multiple signals by

  • (A) analog modulation
  • (B) digital modulation
  • (C) multiplexing
  • (D) none of the mentioned

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Q. Wireless transmission can be done via

  • (A) radio waves
  • (B) microwaves
  • (C) infrared
  • (D) all of the mentioned

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Q. The data link layer takes the packets from _____ and encapsulates them into frames for transmission.

  • (A) network layer
  • (B) physical layer
  • (C) transport layer
  • (D) application layer

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