Linux Questions

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21.

The _______ maintains pending and blocked bit vectors in the context of each process.

A

CPU

B

Memory

C

Process

D

Kernel

Correct Answer: D

None.

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22.

The usefulness of signals as a general inter process communication mechanism is limited because ____________

A

they do not work between processes

B

they are user generated

C

they cannot carry information directly

D

none of the mentioned

Correct Answer: C

None.

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23.

In most cases, if a process is sent a signal while it is executing a system call ____________

A

the system call will continue execution and the signal will be ignored completely

B

the system call is interrupted by the signal, and the signal handler comes in

C

the signal has no effect until the system call completes

D

none of the mentioned

Correct Answer: C

None.

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24.

What command is used to count the total number of lines, words, and characters contained in a file?

A

countw

B

wcount

C

wc

D

count p

E

None of the above

Correct Answer: C

None.

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25.

What command is used to remove files?

A

dm

B

rm

C

delete

D

erase

E

None of the above

Correct Answer: B

None.

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26.

What command is used to remove the directory?

A

rdir

B

remove

C

rd

D

rmdir

E

None of the above

Correct Answer: D

None.

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27.

What command is used with vi editor to delete a single character?

A

x

B

y

C

a

D

z

E

None of the above

Correct Answer: C

None.

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28.

What hardware architectures are not supported by Red Hat?

A

SPARC

B

IBM-compatible

C

Alpha

D

Macintosh

E

None of the above

Correct Answer: D

None.

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29.

The physical layer of a network

A

constructs packets of data and sends them across the network

B

controls error detection and correction

C

defines the electrical characteristics of signals passed between the computer and communication devices

D

All of the above

E

None of the above

Correct Answer: C

None.

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30.

What TCP/IP protocol is used for remote terminal connection service?

A

UDP

B

RARP

C

FTP

D

TELNET

E

None of the above

Correct Answer: D

None.

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