Communication Engineering MCQs with answers Page - 6

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

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A

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Coach

Q. IS-95 was not compatible with existing AMPS frequency band.

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

A

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Q. Which of the following is used by IS-95?

  • (A) dsss
  • (B) fhss
  • (C) thss
  • (D) hybrid

A

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Q. IS-95 uses same modulation technique for forward and reverse channel.

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

A

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Q. IS-95 is specified for reverse link operation in band.

  • (A) 869-894 mhz
  • (B) 849-894 mhz
  • (C) 849-869 mhz
  • (D) 824-849 mhz

A

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Q. User data in IS-95 is spread to a channel chip rate of

  • (A) 1.2288 mchip/s
  • (B) 9.6 mchip/s
  • (C) 12.288 mchip/s
  • (D) 0.96 mchip/s

A

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Q. are used to resolve and combine multipath components.

  • (A) equalizer
  • (B) registers
  • (C) rake receiver
  • (D) frequency divider

A

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Q. CT2 was the first generation of cordless telephones.

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

A

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Q. CT2 is analog version of first generation cordless telephones.

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

A

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Q. For a error free channel, conditional probability should be

  • (A) zero
  • (B) one
  • (C) equal to joint probability
  • (D) equal to individual probability

A

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Q. Average effective information is obtained by

  • (A) subtracting equivocation from entropy
  • (B) adding equivocation with entropy
  • (C) ratio of number of error bits by total number of bits
  • (D) none of the mentioned

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