COMPUTER NETWORKING

MULTIMEDIA AND QUALITY OF SERVICE

COMPRESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lossy or lossless? All information and quality is kept
A
Lossy
B
Lossless
C
Both
D
None of the above
Explanation: 

Detailed explanation-1: -With lossless compression, every bit of data originally in a file remains after it is uncompressed, and all the information is restored. Lossy compression reduces a file by permanently eliminating certain information, especially redundant information.

Detailed explanation-2: -Lossless audio is typically more extensive in file size than lossy audio formats, but audiophiles and professionals prefer it for its superior sound quality. On the other hand, lossy audio refers to a digital format that removes some of the audio information to reduce the file size.

Detailed explanation-3: -The biggest benefit of lossy compression is that it significantly reduces the size of the image file. On the other hand, the biggest disadvantage is that this is achieved with some loss of quality-even though, as we explain, it’s almost imperceptible.

Detailed explanation-4: -6.4. Lossless compression is a compression technique that does not lose any data in the compression process. Lossless compression “packs” data into a smaller file size by using a kind of internal shorthand to signify redundant data.

There is 1 question to complete.