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

Unix Interview Questions

Questions Answers Views Company eMail

Explain fork() system call?

ASAS, IBM,

12 39779

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

3 13583

What are the system calls used for process management?

3 7856

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

2 6621

How can a parent and child process communicate?

TCS,

3 18829

What is a zombie?

10 17625

What are the process states in Unix?

11 27785

What is a Daemon?

3 10239

What Happens when you execute a command?

3 13114

What is an advantage of executing a process in background?

2 17621

How do you execute one program from within another?

4 11880

What is IPC? What are the various schemes available?

5 20278

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

1 4618

What is the difference between Swapping and Paging?

IBM,

4 54310

What is a Map?

2386

Un-Answered Questions { Unix }

What is the difference between unix and windows operating system?

925

What's the difference between impact sockets and regular sockets?

807

What are file commands?

1184

How to give execute permission for a file in unix?

974

What are positional parameters in unix?

964

How to protect a process from others to kill?

909

How do I search a whole word in vim?

1144

Why was unix invented?

832

What uses unix operating system?

878

Explain the importance of directories in a unix system

1008

How to log out in unix?

972

Does unix have a gui?

859

Is socket a hardware or software?

889

What is the working set of a process?

988

What is unix and its components?

926

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