Linux Questions

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11.

A fork system call will fail if ______________

A

the previously executed statement is also a fork call

B

the limit on the maximum number of processes in the system would be executed

C

the limit on the minimum number of processes that can be under execution by a single user would be executed

D

all of the mentioned

Correct Answer: B

None.

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12.

If a thread invokes the exec system call ____________

A

only the exec executes as a separate process

B

the program specified in the parameter to exec will replace the entire process

C

the exec is ignored as it is invoked by a thread

D

none of the mentioned

Correct Answer: B

None.

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13.

If exec is called immediately after forking ____________

A

the program specified in the parameter to exec will replace the entire process

B

all the threads will be duplicated

C

all the threads may be duplicated

D

none of the mentioned

Correct Answer: A

None.

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14.

If a process does not call exec after forking ____________

A

the program specified in the parameter to exec will replace the entire process

B

all the threads should be duplicated

C

all the threads should not be duplicated

D

none of the mentioned

Correct Answer: B

The new process is purely based on fork, due to no exec command, duplication will be done.

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15.

Signals that occur at the same time, are presented to the process ____________

A

one at a time, in a particular order

B

one at a time, in no particular order

C

all at a time

D

none of the mentioned

Correct Answer: B

None.

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16.

Which of the following is not TRUE?

A

Processes may send each other signals

B

Kernel may send signals internally

C

A field is updated in the signal table when the signal is sent

D

Each signal is maintained by a single bit

Correct Answer: C

A field is updated in the process table when the signal is sent.

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17.

Signals of a given type ____________

A

are queued

B

are all sent as one

C

cannot be queued

D

none of the mentioned

Correct Answer: B

The signal handler will be invoked only once.

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18.

The three ways in which a process responds to a signal are ____________

A

ignoring the signal

B

handling the signal

C

performing some default action

D

all of the mentioned

Correct Answer: D

None.

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19.

Signals are identified by ____________

A

signal identifiers

B

signal handlers

C

signal actions

D

none of the mentioned

Correct Answer: A

None.

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20.

When a process blocks the receipt of certain signals?

A

The signals are delivered

B

The signals are not delivered

C

The signals are received until they are unblocked

D

The signals are received by the process once they are delivered

Correct Answer: A

None.

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