Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

What is a Region?

1 4374

What are the events done by the Kernel after a process is being swapped out from the main memory?

2621

What do you mean by u-area (user area) or u-block?

6 27235

What is Fork swap?

Infosys, SSI Small Scale Industries,

1 4918

What is Expansion swap?

KISSI,

1 7949

What are the processes that are not bothered by the swapper? Give Reason.

1 4604

What do you mean by nice value?

4 11210

How to setup display for a remote system?

3 6642

How to remove weird filenames?

1 5303

What are the Unix system calls for I/O?

4 12944

Describe the mount and unmount system calls?

2 13292

Describe the initial process sequence while the system boots up?

4 11593

What are various IDs associated with a process?

4 12534

What are the system calls used for process management:

5 21096

what does a process mean?

Infosys,

7 13303

Un-Answered Questions { Unix }

What are the unix commands?

1103

How does unix operating system works?

979

Why do I get EPROTO from read()?

1456

List a few significant features of unix?

1071

What is a sae socket?

935

What is a socket set used for?

963

How to create a blank file in unix?

983

What is the difference between soft link and hard link in Unix operating system ?

1047

What is pattern matching in unix?

931

Who invented grep?

1173

What are the features and benefits of unix?

934

When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

2275

What uses unix?

973

What is a socket api?

887

What are some command words?

1146

For More Un-Answered { Unix } Questions Click Here