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MCQ

Q.

_______ tend to represent a major bottleneck in system performance.

A

CPUs

B

Disks

C

Programs

D

I/O

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MCQ

1.

A performance problem with _________ is the expense of computing and writing parity.

A

non-parity based RAID levels

B

parity based RAID levels

C

all RAID levels

D

none of the mentioned

Discussion

MCQ

2.

For any type of access, contiguous allocation requires ______ access to get a disk block.

A

only one

B

at least two

C

exactly two

D

none of the mentioned

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3.

One difficulty of contiguous allocation is _____________

A

finding space for a new file

B

inefficient

C

costly

D

time taking

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4.

RAID level 1 refers to ___________

A

disk arrays with striping

B

disk mirroring

C

both disk arrays with striping and disk mirroring

D

none of the mentioned

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5.

The overall I/O rate in RAID level 4 is ____________

A

low

B

very low

C

high

D

none of the mentioned

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