Tanti Technology

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Multi-platform UNIX systems consultant and administrator in mutualized and virtualized environments I have 4.5+ years experience in AIX system Administration field. This site will be helpful for system administrator in their day to day activities.Your comments on posts are welcome.This blog is all about IBM AIX Unix flavour. This blog will be used by System admins who will be using AIX in their work life. It can also be used for those newbies who want to get certifications in AIX Administration. This blog will be updated frequently to help the system admins and other new learners. DISCLAIMER: Please note that blog owner takes no responsibility of any kind for any type of data loss or damage by trying any of the command/method mentioned in this blog. You may use the commands/method/scripts on your own responsibility. If you find something useful, a comment would be appreciated to let other viewers also know that the solution/method work(ed) for you.

Thursday, 31 October 2013

Linux System Admin Interview Questions & Answers part 3

1. Echo is used to Display message on screen. Which of the following options below should be used with echo to not output the trailing newline?
answer: -n

2. mount –r is used to mount a file in read only mode
answer: True

3. Which command is most useful when you want not only to send some data down a pipe, but also to save a copy?
Answer: tee

4. There is no difference between who and whoami command?
Correct answer: False

5. When trying to compare two files using cmp, if the files differ; what is the output?
answer: tells the first byte and line number where they differ

6. Cal is used to display calendar. If no arguments are supplied, what is displayed?
answer: The current month is displayed

7. Which of the following command is used to test a network connection?
answer: ping

8. Ping will only report damaged packets.
answer: False

9. Which of the following are valid functions of Red Hat Package Manager?
Answer: Used to verify software packages.search engine to search for software’s

10. What is the Non interactive mode of nslookup used for?
answer: Fetch information about the specified host or domain

11. Nettop is used to find network usage
Answer: True

12. In _____________ state of a process, the process will be terminated and the information will still be available in the process table.
Answer: Zombie

13. Which system call is used to bias the existing property of process?
answer: bias()

14. LD_LIBRARY_PATH is a type of
answer: Environmental variable

15. What is the major difference between UNIX and LINUX?
answer: Linux is an open source and free software

16. What is the use of a pipe?
Answer: Several functions can be combined in a single statement.Stream input to output.

17. By default, the shell uses the _______________ library
answer: readline

18. The kernel cannot be updated.
answer: False

19. Which of the following below are types of shell?
answer: sh, shell

20. The ______________ file contains all the information of users on your system
Answer: /etc/passwd

21. Which directory is used to write messages when kernel is loading? answer: /var/log/messages

22. Which command is used to report on the status of the quotas that have set including the amount of allocated space and amount of used space?
answer: repquota -a

23. Linux Supports Virtualized File Systems Like RAID.
answer: True

24. When Linux is installed, which account is created by default?
answer: Root

25. Using CHMOD if we want to give ALL permissions to a user, which mode is used?
answer: 777

26. Why do we use pgrep command?
answer: To search through the currently running processes

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