Interview questions

System Security Engineer interview questions – page 25

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

  1. How to run workflow in unix?

  2. What is the meaning of this command rm -rf / what will it do ?

  3. In a class, except 18 all are above 50 years. 15 are below 50 years of age. How many people are there(a) 30 (b) 33 (c) 36 (d) none of these.

  4. Perimeter of front wheel =30, back wheel = 20. If front wheel revolves 240 times. How many revolutions will the back wheel take?

  5. Each side of a rectangle is increased by 100% .By what percentage does the area increase?

  6. How long will a train 100m long traveling at 72kmph take to overtake another train 200m long travelling at 54kmph

  7. What is the relation between process system time, process waiting time , and process CPU time?

  8. What is the cmd to display the last exit status in UNIX?

  9. What command allows you to set a processor-intensive job to use less CPU time?A) psB) niceC) chpsD) lessE) more

  10. Define task and TCB

  11. You wish to restore the file memo.ben which was backed up in the tarfile MyBackup.tar. What command should you type?

  12. Where is a good place to store shell scripts that are for use by the author?A) ~/binB) /binC) /usr/binD) /root

  14. Two cars are 15 kms apart. One is turning at a speed of 50kmph and the other at 40kmph . How much time will it take for the two cars to meet?

  15. Which command works in almost all distributions to create a boot disk?A) mkbootB) make bootdskC) make bootD) mkbootdskE) mkbootdisk

  16. How many hard drives do we generally can accommodate in a pc?

  17. What r the files need to edit for DNS configuration..?

  18. The built-in shell variable $$ refers to A. printing numbers in dollar format B. proces id_ of last command C. proces id_ of last background command issued D. proces-id of current shell

  19. If a system has 128 MB RAM and 1 GB hard Disk, and a process decides to use its fully allotted Virtual Memory 2^32 - 2GB = 2 GB, how is it practically possible?. But this works in all machines. How?

  20. Which are typical system directories below the root directory?

  21. Whst is encapsulation?when u encpsulate actually while devoloping code?

  22. In my linux machine, i lost /etc/passwd file and /etc/shadow file, then how can i recover it?

  23. A person wants to buy 3 paise and 5 paise stamps costing exactly one rupee. If he buys which of the following number of stamps he won't able to buy 3 paise stamps.

  24. HOW TO CHANGE SCHEDULING ALGORITHM OF A LINUX KERNEL THREAD DYNAMICALLY

  25. I want how to repair registry

  27. What u know abt tar Command?

  28. What is a pipe?

  29. How many bits use for MAC address?

  30. What is the UID and GID of root user? Can a normal user canchange the ownership of a file? what is the command tochange ownership of a file?

  31. Which package can you use to regulate which network traffic is allowed to enter a specific machine, but not on any other machines?A) tcp_wrappersB) ipchainsC) SOCKS 5D) TCP/IPE) ipfirewall

  32. In general what is paging? and segmaentation?

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