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

What do you mean by memory leak?

1169

What is a cache memory?

TCS,

977

Explain what is meant by heap?

BPL,

1124

Explain High Severity and Low Priority with example?

Wipro,

1073

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

Wipro,

1143

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

Tech Mahindra,

1235

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

MindCracker,

1089

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

CGI,

1028

Which technology does Pentium use - RISC or CISC?

Tech Mahindra,

1061

Where are the global variables stored?

1147

What is the difference between exclusive lock and shared lock?

1197

Can you tell me the difference between semaphore and mutex.

1212

Explain what is a semaphore?

BPL,

1111

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

1158

What is a hard real time OS?

Motorola,

1187

Un-Answered Questions { Operating Systems }

What are processes and threads?

908

What are two functions the move mv command can carry out?

1084

Can I upgrade my windows 7 to windows 10?

859

How use more command in linux?

1101

Does ram affect excel performance?

935

What is the use of dos in computer?

473

Which is faster windows 10 32 bit or 64 bit?

884

What is the difference between folder and directory?

1003

Will xcopy create directory?

973

What is the difference between tty and pts?

1026

What is heap tree explain with example?

969

Explain what is the process id for kernel process?

997

Does chkdsk require reboot?

765

How do I see all files on my mac?

1089

How to Examin the /etc/services File?

1642

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