Question

Which of the following is true of lossy and lossless compression techniques?

a. Lossless compression is only used in situations where lossy compression techniques can’t be used.
b. Lossy compression is best suited for situations where some loss of detail is tolerable, especially if it will not be detectable by a human.
c. Both lossy and lossless compression techniques will result in some information being lost from the original file.
d. Neither lossy nor lossless compression can actually reduce the number of bits needed to represent a file.

Answer 1

Lossy compression is best suited for situations where some loss of detail is tolerable, especially if it will not be detectable by a human is true of lossy and lossless compression techniques.

Option B

Step-by-step explanation:

Compression can either be lossy or lossless. Lossless compression refers to a data compression method that lets the original data to be perfectly restored or rebuilt from compressed data. This form of compression is fully reversible i.e., the file can be decompressed to its original quality. For instance, this technique is chosen for spreadsheet files as important information or financial data cannot be lost.

Lossy compression permanently removes data. The lossy compression technique does not decompress data back to 100% its original form. This technique is mostly used in image formats like JPEG.