Unix Interview Questions
Questions Answers Views Company eMail

Explain fork() system call?

ASAS, IBM,

12 35875

Predict the output of the following program code main() { fork(); printf("Hello World!"); }

3 12105

What are the system calls used for process management?

3 6462

How can you get or set an environment variable from a program?

2 5830

How can a parent and child process communicate?

TCS,

3 17378

What is a zombie?

10 14637

What are the process states in Unix?

11 24634

What is a Daemon?

3 8969

What Happens when you execute a command?

3 11930

What is an advantage of executing a process in background?

2 16626

How do you execute one program from within another?

4 10632

What is IPC? What are the various schemes available?

5 18694

What is major difference between the Historic Unix and the new BSD release of Unix System V in terms of Memory Management?

1 3805

What is the difference between Swapping and Paging?

IBM,

4 52701

What is a Map?

1865


Un-Answered Questions { Unix }

What do you mean by unix operating system?

472


What is the working set of a process?

584


Explain a zombie?

597


What is the file in unix?

449


How the Kernel handles the copy on write bit of a page, when the bit is set?

534






Can you tell me something about wildcard interpretation?

483


What is the procedure to configure MC/SG Cluster services in HP-UX 11i v3 OS Environment?

5470


What does the swapping system do if it identifies the illegal page for swapping?

631


Differentiate multiuser from multitask.

555


Can you explain what does the kernel do?

495


How are unix domain sockets implemented?

471


How to get the nth word of a line in Unix?

558


Describe the term inode?

598


Can you explain the method of changing file access permission?

507


What is sae socket?

419