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

Unix Interview Questions

Questions Answers Views Company eMail

what is virtual machine?

Infosys,

2 8185

distinguish between physical addresses and logical address?

Infosys,

3 11034

distinguish between multi-tasking,multi-user,multi- processing and time sharing?

Alcatel, Cisco, Infosys, University Exams,

7 32975

what are processor execution levels and priorities?

Infosys,

2 11277

what do you understand by 'unix is a portable os'?

Infosys,

3 11007

what do you understand bythe term 'de-mountable volumes'?

Infosys,

2 9139

How do you copy a directory with many files and folders into another directory?

2 9923

What is pid?

4 10742

Suppose 1000 processes are running on the system out of those if you have to show only certain process ids which command will you use?

5 12906

What is the syntax of grep command and what is its use?

6 12350

How do you move a process which is running background to foreground?

9 18109

How do you stop a running process?

7 16909

What is the procedure of "at" and crontab" commands?

4 11993

Which command will you use to change the permissions on file?

7 11198

What is the use of pipes?

4 9621

Un-Answered Questions { Unix }

How is unix different from linux?

1057

What is the comma to display different lines that are found when compare two files?

1164

What are the bits that support the demand paging?

984

In detail elaborate the system? What is driver?

2153

What is the difference between command and utility in unix?

935

How to restrict NULL value in UNIX

1519

Is it possible to see information about a process while it is being executed?

1242

Why does the sockets buffer fill up sooner than expected?

1344

What is unix environment?

947

What is the difference between nfs 3 and nfs 4?

1074

What does unix like mean?

946

How to reverse a string in Unix?

1039

Explain Sticky bit?

993

Are you in or at the office?

1127

Who owns unix?

927

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