Interview questions

Unix interview questions

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

  1. What are the differences between Database Trigger and Integrity constraints ?

  2. Data analysis related commands like grep, find, awk etc.

  3. I am using Windows 2000 OS. At DOS prompt while I am issuing CD command to switch to an existing directory (eg. appserver) it is throwing error 'Invalid directory'. Would appreciate if anybody have an idea how to resolve it? I tried c:cd app~1 etc.

  4. How do I redirect stdout and stderr separately in csh?

  5. What type of scheduling is used in Unix?

  6. What are the process states in Unix?

  7. Explain Scheduling.

  8. How do I get the current directory into my prompt?

  9. What is a zombie?

  10. What is stty used for?

  11. How is the command ?$cat file2 ? different from ?$cat >file2

  12. Explain kernal and shell.

  14. What is Concurrency? Explain with example Deadlock and Starvation.

  15. How would you remove a semaphore / shared memory whose owner processes have died?

  16. Do you have idea about "Shell Job Control"?

  17. What is an advantage of executing a process in background? The most common reason to put a process in the background is to allow you to do something else interactively without waiting for the process to complete. At the end of the command you add the speci

  18. Explain the following file systems: NTFS, Macintosh (HPFS), and FAT.

  19. How can you get/set an environment variable from a program?

  20. Explain Memory Partitioning, Paging, Segmentation.

  21. What are your solution strategies for "Dining Philosophers Problem?

  22. What is the important aspect of a real-time system or Mission Critical Systems?

  23. How can a parent and child process communicate?

  24. How to find some partuicular lines in unix Vi editor which starts with a paricular word and end with another particular word? For ex - There are 10 lines in the editor and only 4 lines start with the word APPLE and end with the word MANGO.Now how to find

  25. What is difference between lilo and stub?

  27. 4In what way the protection fault handler concludes?

  28. What is DRAM? In which form does it store data?

  29. Write a command to display a file's contents in various formats?

  30. What is 'n' refers for?

  31. What is use of ntbootdd.sys file?

  32. Why window Xp is called wondow ?

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