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

Unix Interview Questions

Questions Answers Views Company eMail

How to check whether some services are running in another server or not? Suppose i am currently in a server named A.I want to check whether some services are running in server B without logging into the server B.

Amazon, MBA, Syntel, TCS, Unisys,

3 16416

What is the output of : $ ps-e $ ps-a commands

IBM,

5 31578

Which is the command used to find out currently executing Process in UNIX?

Amazon,

6 12463

What is the protocol for PING command?

IBM,

1 7580

How many bits use for MAC address?

Google,

7 10852

what is the default signal kill in unix?

IBM,

8 16280

what is the difference between npar and vpar in HP-UX?

CSC,

1 14610

What is clustering in HP and how it's work?

HP,

1 5623

how to make IGNITE-BACKUP in HP-UX?

HP,

4 19219

what is Online(STM) and offline diagnostics in HP-UX?

HP,

2 8800

What is LILO?

2 5260

How to find and replace the below command?

HCL,

2 10120

How will you know who are the users logged in to the system before 15 minutes?

Amazon,

4 14765

1)what is grep|sort give example? 2)what are the test commands

Cap Gemini,

1 6069

how do you move a backgrounnd job to forward?

Cap Gemini,

3 8114

Un-Answered Questions { Unix }

What is unix orphan process?

960

How to remove certain lines from a file in Unix?

957

What is the best free unix based os?

899

Why is it that it is not advisable to use root as the default login?

966

What is unix language?

868

Which are typical system directories below the root directory?

895

What is meant by the term super user?

839

Explain the difference between command and utility in unix?

905

Is it possible to restrict incoming message?

950

What is process termination in unix?

854

How many root directories exist in unix?

964

Does unix have a gui?

858

How to give execute permission for a file in unix?

972

What are system variables in unix?

1091

What is “chmod” command?

1111

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