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

Windows (3805)
Linux (2255)
Unix (1304)
Solaris (894)

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

Operating Systems Interview Questions

Questions Answers Views Company eMail

What are the different job scheduling in operating systems?

B-Ways TecnoSoft,

1069

Draw the states of a process in an OS.

GrapeCity,

1181

What do you mean by a semaphore?

Flextronics,

1222

Describe horizontal scalability and vertical scalability.

Tech Mahindra,

1153

How i can repair File Allocation Table?

HCL,

1160

What do you mean by threads in Operating System?

EXL, HCL,

1217

What are the different types of semaphores?

Axtria,

1157

What is the shortest definition of os?

Infosys,

1148

Differentiate between swapping and paging.

Tech Mahindra,

1194

Who does the memory management in operating system?

1081

Explain 32 bit application/OS vs 64 application/OS?

MCN Solutions,

988

Explain any program using Semaphores.

Huawei,

1242

Tell me about virtual memory?

Honeywell, Zomato,

1096

Describe Inter Machine Communication?

MaxSolPro,

1247

What is Real Time Operating System (RTOS)? What are the advantages of RTOS?

Ciena,

1165

Un-Answered Questions { Operating Systems }

How do I uninstall and reinstall windows defender?

906

What are the 3 types of software?

1070

What is an a record, an ns record, a ptr record, a cname record, an mx record?

955

What do you mean by the term “percolate up”?

997

What are the contents in /usr/local?

953

What is gui in linux?

972

How many sockets can a cpu have?

891

What are read-write locks?

1066

How do you kill a process in linux?

1212

What is the average cost to replace windows?

968

Why is data structure needed?

1017

Explain the following statement, “it is not advisable to use root as the default login.”

925

What is semmni (max-sem-ids in solaris 10+)?

891

Describe avl tree or height balanced binary search tree.

948

Whats the difference between select() and poll()?

1716

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