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151. Which of the following is Lossless Data Compression Algorithms?
a. LZ77
b. LZR
c. DEFLATE
d. All of the above
Answer: (d).All of the above

152. Lossy compression reduces bits by removing unnecessary or less important information.
a. True
b. False
c. May be True or False
d. Can't Say
Answer: (a).True

153. Which of the following is true about LempelZivWelch (LZW) algorithm?
a. Optimized for compressing plain text
b. Used by GIF images and Unix's compress utility
c. Used by WinRAR in tandem with Huffman coding
d. used by ZIP, gzip, and PNG images
Answer: (b).Used by GIF images and Unix's compress utility

154. Which of the following algorithms has very high compression ratio, used by 7zip and xz?
a. LZSS
b. LZO
c. LZMA
d. LZW
Answer: (c).LZMA

155. Uncompressed video requires a ________ data rate.
a. high
b. low
c. medium
d. very high
Answer: (d).very high

156. Which of the following is not a audio compression algorithms?
a. ALAC
b. DST
c. JSAC
d. OSQ
Answer: (c).JSAC

157. Lossyimage compressionis used indigital cameras, to increase storage capacities.
a. True
b. False
c. May be True or False
d. Can't Say
Answer: (a).True