Unix interview questions part 26
Unix interview questions part 26
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Total Questions: 20
1. Which of the following shell doesn’t support ! symbol for negating the character class?
Correct Answer is : C
2. The command cd * will work.
Correct Answer is : TRUE
3. Providing a backslash (\) before the wild card to remove its special meaning is called _____
Correct Answer is : escaping
4. Enclosing the wild card or the entire pattern within quotes is called ___
Correct Answer is : quoting
5. To remove the file named my document.txt, which one of the following commands will be used?
Correct Answer is : rm my\ document.txt
6. We can escape the \ itself using escaping.
Correct Answer is : TRUE
7. For escaping the newline character we can use ____
Correct Answer is : \
8. The output of the following command is ______________ $ echo ‘The special character $ echo hello and | ls chap*’
Correct Answer is : The special character $ echo hello and | ls chap*
9. Double quotes are more permissive than single quotes and allow the evaluation of the $ and ` itself.
Correct Answer is : TRUE
10. Which of the following command will remove the file named * ?
Correct Answer is : rm ‘*’ and rm \*
11. Which of the following resources are required to be managed and monitored?
Correct Answer is : CPU time, I/O time, disk space
12. System time comprises ____ components.
Correct Answer is : 5
13. Which command is used to display all the running and active real-time processes?
Correct Answer is : top
14. ____ command displays the list of all open files and processes.
Correct Answer is : lsof
15. ____ is a simple tool that will collect and show system input and output storage device statistics.
Correct Answer is : Iostat
16. sar is a command line tool for collecting, viewing and recording performance data.
Correct Answer is : TRUE
17. To override the default action and catch the signal ____ system call is used.
Correct Answer is : signal
18. Which of the following functions can be performed using signal system call?
Correct Answer is : ignore the signal, restore the default and invoke a signal handling function
19. Which of the following signals can neither be ignored nor catch?
Correct Answer is : SIGKILL and SIGSTOP
20. Which one of the following is the most powerful filter?
Correct Answer is : perl
