What is the value returned by fork system call, when the creation of child process is unsuccessful?(a) positive integer(b) negative integer(c) zero(d) fractional valueThe question was asked in unit test.My enquiry is from Process Status:ps Command and Phases of a Process in portion The Process of Unix

What is the value returned by fork system call, when the creation of c

1.	What is the value returned by fork system call, when the creation of child process is unsuccessful?(a) positive integer(b) negative integer(c) zero(d) fractional valueThe question was asked in unit test.My enquiry is from Process Status:ps Command and Phases of a Process in portion The Process of Unix
Answer» Right choice is (b) negative integer The best explanation: fork() system call is used in UNIX for creating NEW processes. It TAKES no parameters and returns an integer value. The value returned depends on the following cases: Positive value: returned to the parent process. The value contains PID of child process which is created. Negative value: returned if the creation of child process is unsuccessful. Zero: returned to the NEWLY created child process.

Discussion

No Comment Found

Related InterviewSolutions

To find out how efficiently a program a used the system resources, which command is used?(a) sys(b) time(c) crontab(d) daemonThe question was asked in an international level competition.My query is from Process Management in section The Process of Unix
The cron tab is a table having a list of commands that are scheduled to be run at regular intervals.(a) True(b) FalseThis question was posed to me in an interview for job.The above asked question is from Process Management topic in section The Process of Unix
Which of the following command will remove the current crontab?(a) crontab -p(b) crontab -l(c) crontab -e(d) crontab -rI have been asked this question in final exam.The query is from Process Management in portion The Process of Unix
What is cron?(a) a simple process(b) an orphan process(c) a daemon(d) a zombie processI had been asked this question in an international level competition.Enquiry is from Process Management topic in division The Process of Unix
Jobs scheduled using batch command can be removed using ___ option.(a) -a(b) -d(c) -f(d) -rI have been asked this question in an internship interview.My question is from Process Management in chapter The Process of Unix
What is a daemon?(a) process whose parent has died(b) process who has completed its execution but still has an entry in the process table(c) process which is running infinitely(d) process which runs automatically without any user interactionThe question was posed to me in an online quiz.Enquiry is from Process Management topic in chapter The Process of Unix
Jobs scheduled using batch command goes to a special at queue.(a) True(b) FalseThis question was addressed to me in exam.My question is taken from Process Management in section The Process of Unix
Which command permits to schedule jobs for later execution, as soon as the system load permits?(a) at(b) %(c) batch(d) cronThe question was asked in homework.The question is from Process Management in section The Process of Unix
We cannot find out the name of the program scheduled using at command.(a) True(b) FalseI have been asked this question during an interview for a job.This is a very interesting question from Process Management topic in chapter The Process of Unix
To remove a job from the queue, which option is used with at command?(a) -r(b) -l(c) -e(d) -tThis question was posed to me by my college director while I was bunking the class.My question is taken from Process Management topic in chapter The Process of Unix

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment