Question

Which of the following is true of lossy and lossless compression algorithms?
A. Lossy compression algorithms are used when perfect reconstruction of the original data is important.
B. Lossy compression algorithms are typically better than lossless compression algorithms at reducing the number of bits needed to represent a piece of data.
C. Lossless compression algorithms are only used to compress text data.
D. Lossless compression algorithms only allow for an approximate reconstruction of the original data.

Answer 1

Answer:

B. Lossy compression algorithms are typically better than lossless compression algorithms at reducing the number of bits needed to represent a piece of data.

Explanation:

The lossy compressions allow for data to be compressed in inexact measurements which means less loss than the exact measurements that Lossless compression uses.

Answer 2

The true statement regarding lossy & lossless compression algorithms is that they should be treated better as compared to lossless compression algorithms with respect to decreasing the no of bits that are required for presenting the piece of data.

The following statements should not be relevant:

• It can't be used at a time when the perfect reconstruction of the real data should become significant.
• It not only applied for compressing the text data.
• It not only permits the predicted reconstruction of the real data.

Therefore we can conclude that the true statement regarding lossy & lossless compression algorithms is that they should be treated better as compared to lossless compression algorithms with respect to decreasing the no of bits that are required for presenting the piece of data.

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