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 16387

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

IBM,

5 31516

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

Amazon,

6 12419

What is the protocol for PING command?

IBM,

1 7558

How many bits use for MAC address?

Google,

7 10810

what is the default signal kill in unix?

IBM,

8 16211

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

CSC,

1 14594

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

HP,

1 5597

how to make IGNITE-BACKUP in HP-UX?

HP,

4 19190

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

HP,

2 8770

What is LILO?

2 5228

How to find and replace the below command?

HCL,

2 10088

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

Amazon,

4 14723

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

Cap Gemini,

1 6052

how do you move a backgrounnd job to forward?

Cap Gemini,

3 8088

Un-Answered Questions { Unix }

What is .profile unix?

854

Why was unix invented?

825

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

1007

How does shebang work?

1021

What is difference between unix and windows operating system?

952

What is a parent directory in unix?

863

Why is it called a shebang?

1095

Which command will print your home directory on screen?

1033

What is the functionality of a top command?

1056

Explain what is standard unix streams ?

925

What is awk good for?

1091

Explain kernal and shell?

1007

What does sed command do in unix?

1120

Who owns the unix trademark today?

855

Explain the architectural differences between user-space threads, and kernel-supported threads?

914

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