Binary to decimal and hexadecimal conversion and compression

1. 1Convert the binary number 110101₂ to its decimal equivalent.

   1. A41
   2. B53
   3. C45
   4. D52
2. 2Which of the following is the hexadecimal equivalent of the binary number 10111011₂?

   1. A7A
   2. BB7
   3. C8B
   4. DBB
3. 3Which of the following best illustrates the concept of abstraction in programming

   1. AWriting a program that directly manipulates binary data instead of using variables.
   2. BUsing a variable named total_score to store the sum of points scored in a game.
   3. CCreating a custom file format to store images as raw binary values.
   4. DConverting a binary number directly into hexadecimal without using any intermediate steps.
4. 4Which of the following file types should be compressed using a lossless method rather than a lossy method?

   1. AA) A high-quality video file for streaming on YouTube.
   2. BB) A song file for streaming on Spotify.
   3. CC) A software application installer (like a .EXE file).
   4. DD) An image posted to a social media platform.
5. 5A video streaming platform wants to reduce the file size of its videos while still providing a good user experience. Which of the following approaches would be the most appropriate?
   

   1. AA) Use run-length encoding to reduce the video file size.
   2. BB) Compress the video using a lossy compression algorithm.
   3. CC) Compress the video using a lossless compression algorithm.
   4. DD) Store the video uncompressed for better quality.
6. 6How would the string "AAAABBBCCDAA" be represented using run-length encoding (RLE)?
   
   
   

   1. AA) A4B3C2D1A2
   2. BB) 4A3B2C1D2A
   3. CC) 3A2B2C1D2A
   4. DD) 4A2B3C1D2A
7. 7Which of the following statements about Huffman coding is true?

   1. AA) Huffman coding assigns longer binary codes to more frequently used characters.
   2. BB) Huffman coding assigns shorter binary codes to more frequently used characters.
   3. CC) Huffman coding works best for audio compression.
   4. DD) Huffman coding is only used for images and videos.
8. 8Which of the following describes a trade-off associated with using lossy compression?
   

   1. AA) The file size is smaller, but some quality is lost.
   2. BB) The file size is larger, but no data is lost.
   3. CC) The compression is reversible, and you can get back the exact original file.
   4. DD) The file size is reduced, but all original data is preserved.

Descrição

Quiz sobre Sem título, criado por Success Godday em 19-12-2024.

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Success Godday

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English

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