Gce Model Questions Vol1 2023 Computer Studies Question 40

Practice objective / multiple choice question 40 from the 2023 Gce Model Questions Vol1 Computer Studies examination.

Gce Model Questions Vol1 2023 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 40 GCE_MODEL_QUESTIONS_VOL1 • 2023 • COMPUTER_STUDIES • objective

A 12 MB file is compressed in two stages. The first stage reduces its size by 30 % and the second stage reduces the result by 20 % of its size. After compression the file is stored on a disk that uses 4 KB blocks; each block can hold data plus 64 bytes of overhead. (a) What is the final size of the compressed file in kilobytes? (b) How many disk blocks are required to store it? (c) How much space (in kilobytes) is wasted because of block overhead and the unused part of the last block?

Answer Options

A. Final size ≈ 6 800.00 KB; blocks required = 1 800; wasted space ≈ 105.0 KB.
B. Final size ≈ 6 881.28 KB; blocks required = 1 750; wasted space ≈ 108.5 KB.
Correct Answer C. Final size ≈ 6 881.28 KB; blocks required = 1 748; wasted space ≈ 110.7 KB.
D. Final size ≈ 6 950.40 KB; blocks required = 1 720; wasted space ≈ 115.2 KB.
Correct Answer
C
Correct Option:
Final size ≈ 6 881.28 KB; blocks required = 1 748; wasted space ≈ 110.7 KB.

About This Question

This is Gce Model Questions Vol1 2023 Computer Studies Question 40. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Computer Studies examination.

Difficulty level: Medium .

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