Storage Management Questions

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151.

What is the real disadvantage of a linear list of directory entries?

A

size of the linear list in memory

B

linear search to find a file

C

it is not reliable

D

all of the mentioned

Correct Answer: B

None.

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152.

Contiguous allocation of a file is defined by _____________

A

disk address of the first block & length

B

length & size of the block

C

size of the block

D

total size of the file

Correct Answer: A

None.

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153.

One difficulty of contiguous allocation is _____________

A

finding space for a new file

B

inefficient

C

costly

D

time taking

Correct Answer: A

None.

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154.

_______ and ________ are the most common strategies used to select a free hole from the set of available holes.

A

First fit, Best fit

B

Worst fit, First fit

C

Best fit, Worst fit

D

None of the mentioned

Correct Answer: A

None.

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155.

The first fit and best fit algorithms suffer from _____________

A

internal fragmentation

B

external fragmentation

C

starvation

D

all of the mentioned

Correct Answer: B

None.

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156.

To solve the problem of external fragmentation ________ needs to be done periodically.

A

compaction

B

check

C

formatting

D

replacing memory

Correct Answer: A

None.

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157.

If too little space is allocated to a file _____________

A

the file will not work

B

there will not be any space for the data, as the FCB takes it all

C

the file cannot be extended

D

the file cannot be opened

Correct Answer: C

None.

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158.

A device driver can be thought of like a translator. Its input consists of _____ commands and output consists of _______ instructions.

A

high level, low level

B

low level, high level

C

complex, simple

D

low level, complex

Correct Answer: A

None.

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159.

The file organization module knows about _____________

A

files

B

logical blocks of files

C

physical blocks of files

D

all of the mentioned

Correct Answer: D

None.

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160.

Metadata includes _____________

A

all of the file system structure

B

contents of files

C

both file system structure and contents of files

D

none of the mentioned

Correct Answer: C

None.

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