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Unix Interview Questions
Questions Answers Views Company eMail

Explain fork() system call?

ASAS, IBM,

12 35948

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

3 12128

What are the system calls used for process management?

 3 6506

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

 2 5845

How can a parent and child process communicate?

TCS,

3 17404

What is a zombie?

 10 14681

What are the process states in Unix?

 11 24694

What is a Daemon?

 3 8983

What Happens when you execute a command?

 3 11949

What is an advantage of executing a process in background?

 2 16650

How do you execute one program from within another?

 4 10640

What is IPC? What are the various schemes available?

 5 18724

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

 1 3838

What is the difference between Swapping and Paging?

IBM,

4 52721

What is a Map?

 1877

Un-Answered Questions { Unix }

Tell me how to protect a process from others to kill?

490

How can I force a socket to send the data in its buffer?

1082

What is socket address?

554

How do we change file access permissions?

521

The syntax of command statement in UNIX

5




Name the unix command to find how many days the server has been up.

583

Max relax-able permission value with out giving write permission to others?

559

How are unix domain sockets implemented?

477

What is unix operating system used for?

474

How to write the program on full-duplex communication on bidirectional?

533

Explain the system calls used for process management?

532

How do I search for a file in unix?

495

How do I search a whole word in vim?

677

What is a deep well socket?

499

What's better 6pt or 12pt sockets?

466

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