Data Compression and Data Retrieval MCQs with answers Page - 7

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Q. Bwt algorithm requires that the entire sequence to be coded be available to the ____before the coding takes place

  • (A) Decoder.
  • (B) Encoder
  • (C) ---
  • (D) ---

A

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Q. Shannon Defined A Quantity Called

  • (A) Self-Information
  • (B) Information
  • (C) ---
  • (D) ---

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Q. Markov process called

  • (A) Discrete time markov chain
  • (B) Random time markov chain
  • (C) ---
  • (D) ---

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Q. Markov models are more widely known

  • (A) Finite context models
  • (B) Text context models
  • (C) ---
  • (D) ---

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Q. The ppm algorithms first attempt to find if the symbol to be encoded has a _____probability with respect to the maximum context length.

  • (A) Zero
  • (B) Nonzero
  • (C) ---
  • (D) ---

A

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Q. Composite source model, which can be viewed as a

  • (A) Single Model To Describe The Source
  • (B) Combination Or Composition Of Several Sources
  • (C) ---
  • (D) ---

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Q. The ASCII code uses the same number of bits to represent each symbol. Such a code is called

  • (A) Random Length Code.
  • (B) Fixed-Length Code.
  • (C) ---
  • (D) ---

A

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Q. Unique decodability from the code; that is, any given sequence of codewords can be decoded in

  • (A) One, And Two, Way.
  • (B) One, And Only One, Way.
  • (C) ---
  • (D) ---

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Q. Dictionary based compression...

  • (A) Is a lossless compression format
  • (B) Doesn't need to send the dictionary with the data
  • (C) Is a lossless compression format
  • (D) all of the above

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