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

Windows (3805)
Linux (2255)
Unix (1343)
Solaris (894)

RTOS (43)
Bulnex (4)
Operating Systems General Concepts (1242)
Data Structures (2039)

Operating Systems Interview Questions

Questions Answers Views Company eMail

Write a small dc shell script to find number of FF in the design

7692

How are devices represented in UNIX?

2 9952

What is 'inode'?

Infosys,

11 50678

What is a FIFO?

2 6488

How do you create special files like named pipes and device files?

Wipro,

1 5862

What are the mount and unmount system calls?

HCL,

1 8660

How does the inode map to data block of a file?

3 15287

what about the initial process sequence while the system boots up?

1 6013

What are various IDs associated with a process?

3 6619

Explain fork() system call?

ASAS, IBM,

12 40243

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

3 13768

What are the system calls used for process management?

3 8002

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

2 6742

How can a parent and child process communicate?

TCS,

3 18994

What is a zombie?

10 17956

Un-Answered Questions { Operating Systems }

How safe is linux?

815

Where is the jdk installed on windows?

887

What is a matrix? Explain its uses with an example

1160

How do I change file associations?

955

Difference between arraylist and linkedlist?

1030

what is Singly Linked list?

1002

Is win 10 still free?

796

Enumerate the different RAID levels.

1139

What are some of the best practices relating to the java collection framework?

907

How to open microsoft word document, power point etc. On linux suse version and vise versa?

974

How do I open the start menu in windows 10?

806

which is the simplest file structure? (Sequential, indexed, random)

1276

What is height balanced tree?

939

Why is unix better than windows?

944

Where can I find my windows 7 product key?

740

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