A directory of Objective Type Questions covering all the Computer Science subjects.

1.
Which RAID level refers to disk mirroring?
a. 0
b. 1
c. 2
d. 3
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Answer: (b).1

2.
The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to
a. the time its takes for the platter to make a full rotation
b. the time it takes for the read-write head to move into position over the appropriate track
c. the time it takes for the platter to rotate the correct sector under the head
d. none of the above
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Answer: (a).the time its takes for the platter to make a full rotation

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