Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 30
Q481:
How many colors can a GIF image palette support?
A. 128
B. 256
C. 512
D. 1024
Correct Answer:
B
Chapter: 30
Q482:
What is the primary compression method used by GIF?
A. Run-length encoding
B. Huffman coding
C. Arithmetic coding
D. JPEG compression
Correct Answer:
A
Chapter: 30
Q483:
In GIF compression, what does the palette contain?
A. 256 color encodings
B. 256 pixel patterns
C. 256 text entries
D. 256 character encodings
Correct Answer:
A
Chapter: 30
Q484:
What is a limitation of GIF compression?
A. It supports only 256 colors
B. It does not support transparency
C. It is a lossy compression method
D. It is suitable for high-precision photography
Correct Answer:
A
Chapter: 30
Q485:
What is a notable feature of GIF images related to transparency?
A. One color can be assigned as transparent
B. All colors are equally transparent
C. Transparency is not supported
D. Only the background can be transparent
Correct Answer:
A
Chapter: 30
Q486:
What is the main difference between GIF and JPEG compression methods?
A. JPEG supports more colors than GIF
B. GIF supports lossy compression, JPEG does not
C. JPEG uses run-length encoding, GIF does not
D. GIF is better for color photographs than JPEG
Correct Answer:
A
Chapter: 30
Q487:
What compression mode does JPEG use for high precision?
A. Lossless mode
B. Lossy mode
C. Run-length encoding
D. Adaptive encoding
Correct Answer:
A
Chapter: 30
Q488:
What is the standard JPEG compression option known for?
A. Lossy sequential mode
B. Lossless sequential mode
C. Run-length encoding
D. Huffman coding
Correct Answer:
A
Chapter: 30
Q489:
How does JPEG's baseline standard reduce image size?
A. By averaging chrominance values over two-by-two-pixel squares
B. By increasing the number of colors used
C. By applying fixed-length encoding
D. By using a fixed-size dictionary
Correct Answer:
A
Chapter: 30
Q490:
What is the purpose of the discrete cosine transform in JPEG compression?
A. To convert pixel values into a block of related entries
B. To encode image data with Huffman codes
C. To replace subtle changes with zeros
D. To apply run-length encoding
Correct Answer:
A
Chapter: 30
Q491:
How does JPEG compression handle values below a certain threshold?
A. They are replaced by zeros
B. They are encoded as longer bit patterns
C. They are ignored
D. They are stored in a separate file
Correct Answer:
A
Chapter: 30
Q492:
What factor typically describes the compression ratio of JPEG's baseline standard?
A. 10 to 30
B. 1 to 5
C. 2 to 10
D. 5 to 20
Correct Answer:
A
Chapter: 30
Q493:
What is TIFF primarily used for?
A. Storing photographs with metadata
B. Compressing images for web use
C. Encoding color images with high precision
D. Storing text documents with compression
Correct Answer:
A
Chapter: 30
Q494:
What is a common use of TIFF's compression techniques?
A. Compressing text documents in facsimile applications
B. Storing high-resolution images without compression
C. Applying JPEG compression to photographs
D. Encoding images for web display
Correct Answer:
A
Chapter: 30
Q495:
What kind of encoding does TIFF use for text documents?
A. Variations of run-length encoding
B. Huffman coding
C. JPEG compression
D. Dictionary encoding
Correct Answer:
A
Chapter: 30
Q496:
How does TIFF handle color image compression?
A. It uses techniques similar to GIF
B. It uses JPEG compression
C. It applies LZW encoding
D. It does not support color compression
Correct Answer:
A
Chapter: 31
Q497:
What does MPEG stand for?
A. Motion Picture Experts Group
B. Multimedia Processing Encoding Group
C. Media Production Experts Group
D. Motion Picture Encoding Group
Correct Answer:
A
Chapter: 31
Q498:
What is the primary purpose of MPEG standards?
A. Encoding and compressing audio and video
B. Storing images in high resolution
C. Creating interactive video games
D. Designing audio hardware
Correct Answer:
A
Chapter: 31
Q499:
What is an I-frame in MPEG video compression?
A. A frame encoded in its entirety
B. A frame that records only differences from the previous frame
C. A frame used for audio compression
D. A frame that stores metadata
Correct Answer:
A
Chapter: 31
Q500:
How are pictures between I-frames encoded in MPEG?
A. Using relative encoding techniques
B. Using JPEG compression techniques
C. Using lossless compression
D. Using Huffman coding
Correct Answer:
A