Interview questions

Unix interview questions – page 4

373 questions. Tap “Show answer” to check yourself.

  1. How do I ring the terminal bell during a shell script?

  2. Compare the no. of bytes in unix and Dos for long, char, short, int.

  3. How do you connect to or query Oracle database from a UNIX platform.?

  4. How is the command ?$cat file2 ? different from ?$cat >file2 and >> redirection operators ?

  5. Is there any way I can see the data of a Unix HDD from the windows OS? I installed the HDD In my windows PC and I can see the disk from Diskmanager but I can not access the HDD content.

  6. What is a pipe?

  7. Semaphores and other locking mechanisms.

  8. What's the difference between fork() and vfork()?

  9. What is the purpose and function of an operating system?

  10. How many bits use for MAC address?

  11. Vis in UNIX is A. a command that takes only one input B. a command for deleting strange or unwanted charectors that may have crept into files. C. points non-printable characters in understandable format D. all of the ...

  12. In UNIX, Max relaxable permisssion value with out giving write permission to others?.

  14. Why are page sizes always powers of 2?

  15. What does fork() do?

  16. What are the various ways to terminate a process by itself normally and abnormally. Also the ways to kill the process by another process in unix

  17. Which of the following is true a)UNIX is a time sharing multi-user OS b)UNIX has a device independent file system c)UNIX is full duplex d)UNIX has command interpreter e)All of the above

  18. What are the major differences between windows XP and Windows 2000 operating systems?

  19. What are raw sockets?

  20. What is the difference between cmp and diff commands

  21. How deadlocks are handled in linux ?

  22. What is the meaning of enabling kerenel level threading?

  23. What are the uses of Database Trigger ?

  24. What is ex and vi ?

  25. How do I get a recursive directory listing?

  27. Unix system is a)multi processingb)multi processing ,multiuserc)multi processing ,multiuser,multitaskingd)multiuser,multitasking

  28. Does UNIX support QTP? If not what is the other tool usedfor Unix environment?

  29. What is the difference between mutex and binary semaphore?

  30. What are the differences between Shared and Dynamic libraries?

  31. How to switch to a super user status to gain privileges?

  32. How do you change File Access Permissions?

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