Operating system mcqs threads signal handling

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Operating system mcqs threads signal handling

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A process can never be sure that a signal it has sent .....
A
has which identifier
B
has not been lost
C
has been sent
D
all of the mentioned
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In UNIX, the ..... system call is used to send a signal.
A
sig
B
send
C
kill
D
sigsend
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In UNIX, the set of masked signals can be set or cleared using the ..... function.
A
sigmask
B
sigmaskproc
C
sigprocmask
D
sigproc
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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
There are 5 questions to complete.