Storage Management Questions

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41.

An admission control scheme assigns a __________ to each type of resource.

A

processor

B

memory location

C

resource manager

D

all of the mentioned

Correct Answer: C

None.

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42.

A scheduling algorithm can use either ___________ priority or ________ priority.

A

static, still

B

static, dynamic

C

live, dead

D

none of the mentioned

Correct Answer: B

None.

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43.

The priority of a process will ______________ if the scheduler assigns it a static priority.

A

change

B

remain unchanged

C

depends on the operating system

D

none of the mentioned

Correct Answer: B

None.

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44.

As disks have relatively low transfer rates and relatively high latency rates, disk schedulers must reduce latency times to ___________

A

ensure high bandwidth

B

ensure low bandwidth

C

make sure data is transferred

D

reduce data transfer speeds

Correct Answer: A

None.

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45.

Servicing requests strictly according to deadline using EDF may result in ___________

A

lower seek times

B

lower bandwidth

C

higher seek time

D

higher bandwidth

Correct Answer: C

None.

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46.

The hybrid algorithm that combines EDF with SCAN algorithm is known as ___________

A

EDS

B

SDF

C

SCAN-EDF

D

None of the mentioned

Correct Answer: C

None.

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47.

If several requests have different deadlines that are relatively close together, then using the SCAN-EDF algorithm___________

A

the SCAN ordering will service the requests in that batch

B

the EDF ordering will service the requests in that batch

C

the FCFS ordering will service the requests in that batch

D

none of the mentioned

Correct Answer: A

None.

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48.

Multimedia systems require _________ scheduling to ensure critical tasks will be serviced within timing deadlines.

A

soft real time

B

hard real time

C

normal

D

none of the mentioned

Correct Answer: B

None.

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49.

The EDF scheduler uses ________ to order requests according to their deadlines.

A

stack

B

disks

C

queue

D

none of the mentioned

Correct Answer: C

None.

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50.

In SCAN-EDF, requests with the same deadlines are ordered according to ___________

A

SCAN policy

B

EDF policy

C

FCFS policy

D

FIFO policy

Correct Answer: A

None.

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