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Q.

The set of tracks that are at one arm position make up a ___________

A

magnetic disks

B

electrical disks

C

assemblies

D

cylinders

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MCQ

1.

When the head damages the magnetic surface, it is known as _________

A

disk crash

B

head crash

C

magnetic damage

D

all of the mentioned

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2.

SSTF algorithm, like SJF __________ of some requests.

A

may cause starvation

B

will cause starvation

C

does not cause starvation

D

causes aging

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3.

To control access the three bits used in UNIX are represented by _____________

A

r

B

w

C

x

D

all of the mentioned

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4.

With _______ a requested page and several subsequent pages are read and cached.

A

write ahead

B

read ahead

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free-behind

D

add-front

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5.

In the _______ algorithm, the disk head moves from one end to the other, servicing requests along the way. When the head reaches the other end, it immediately returns to the beginning of the disk without servicing any requests on the return trip.

A

LOOK

B

SCAN

C

C-SCAN

D

C-LOCK

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