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 do you mean by memory leak?

1226

What is a cache memory?

TCS,

1030

Explain what is meant by heap?

BPL,

1196

Explain High Severity and Low Priority with example?

Wipro,

1113

What are the different memories you know about? Which of them takes the shortest access time?

Wipro,

1194

Difference between short term, long term and medium term scheduler.

Tech Mahindra,

1317

Which event determines that all the controls are completely loaded into memory?

MindCracker,

1140

what is the memory required when a screen has 1024*1280 pixels and each pixel can have around 16 million colors?

CGI,

1085

Which technology does Pentium use - RISC or CISC?

Tech Mahindra,

1102

Where are the global variables stored?

1207

What is the difference between exclusive lock and shared lock?

1269

Can you tell me the difference between semaphore and mutex.

1283

Explain what is a semaphore?

BPL,

1156

What is significance of semaphores? What are the different types of semaphores?

1220

What is a hard real time OS?

Motorola,

1269

Un-Answered Questions { Operating Systems }

What is the difference between hashmap and arraylist?

1058

How do I activate my windows?

901

What is merge sort and how it works?

889

What versions of windows are still supported?

923

What do you mean by ram?

1071

What is top command in linux?

1056

How do I boot into windows recovery?

868

How do I fix corrupted files windows 7?

847

What is linux network interface?

1067

Can I use linux on a mac?

910

How will you sort the elements of array in descending order?

1007

What is nfs?

1102

What is the difference between an environment and a local variable?

982

What are the advantage of linked list over array?

903

Do you have to renew windows 10 every year?

876

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