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Exam 312-49v10 All Questions

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Exam 312-49v10 topic 1 question 247 discussion

Actual exam question from ECCouncil's 312-49v10
Question #: 247
Topic #: 1
[All 312-49v10 Questions]

What technique is used by JPEGs for compression?

  • A. ZIP
  • B. TCD
  • C. DCT
  • D. TIFF-8
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Suggested Answer: C 🗳️
by Elb at July 24, 2023, 9:55 p.m.

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044f354
4 months, 1 week ago
Selected Answer: C
A. Incorrect: ZIP is a general-purpose compression algorithm, not specific to JPEGs. B. Incorrect: TCD is not related to JPEG compression. C. Correct: JPEGs use DCT (Discrete Cosine Transform) to compress images by transforming spatial data into frequency data, reducing redundancies. D. Incorrect: TIFF-8 is a file format, not a compression technique.
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aqeel1506
9 months, 1 week ago
JPEGs use the Discrete Cosine Transform (DCT) technique for compression. This mathematical transformation converts spatial image data into frequency domain coefficients, reducing redundancy and achieving compression.
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Elb
1 year, 9 months ago
C: The key to the JPEG baseline compression process is a mathematical transformation known as the Discrete Cosine Transform (DCT)
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