Communication Engineering MCQs with answers Page - 8

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Q. Which of the following is not an algorithm for decoding convolution codes?

  • (A) viterbi algorithm
  • (B) stack algorithm
  • (C) fano’s sequential coding
  • (D) ant colony optimization

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Q. Fano’s algorithm searches all the paths of trellis diagram at same time to find the most probable path.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

A

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Q. Which of the following is not an advantage of Fano’s algorithm in comparison to Viterbi’s algorithm?

  • (A) less storage
  • (B) large constraint length
  • (C) error rate
  • (D) small delays

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Q. In comparison to stack algorithm, Fano’s algorithm is simpler.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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Q. Which of the following is not an error correction and detection code?

  • (A) block code
  • (B) convolutional codes
  • (C) passive codes
  • (D) turbo codes

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Q. Which decoding method involves the evaluation by means of Fano’s algorithm?

  • (A) maximum likelihood decoding
  • (B) sequential decoding
  • (C) maximum a priori
  • (D) minimum mean square

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Q. In Viterbi’s algorithm, the selected paths are regarded as

  • (A) survivors
  • (B) defenders
  • (C) destroyers
  • (D) carriers

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Q. Pseudorandom signal predicted.

  • (A) can be
  • (B) cannot be
  • (C) maybe
  • (D) none of the mentioned

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Q. The properties used for pseudorandom sequence are

  • (A) balance
  • (B) run
  • (C) correlation
  • (D) all of the mentioned

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Q. The shift register needs to be controlled by clock pulses.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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