Neco 2022 Data Processing Question 23
Practice objective / multiple choice question 23 from the 2022 Neco Data Processing examination.
A file contains 2,000 records, each 512 bytes long, stored on a disk with a block size of 4 KB. The disk rotates at 7,200 rpm, has an average seek time of 5 ms and a transfer rate of 100 MB/s.\n\n(a) Compute the time to read the entire file sequentially (include one initial seek and average rotational latency).\n(b) Compute the time to read a single record randomly (include seek, average rotational latency and transfer of one record).\n(c) What is the difference in milliseconds between the sequential and random read times?
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About This Question
This is Neco 2022 Data Processing Question 23. It is one of the objective questions from the 2022 Neco Data Processing examination.
Difficulty level: Medium .
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