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

Operating Systems General Concepts Interview Questions

Questions Answers Views Company eMail

Explain what you mean by memory alignment.

TCS,

1078

List advantages and disadvantages of dynamic memory allocation vs. static memory allocation.?

1185

Tell me something about the concept of memory leak?

1116

What do you mean by memory leak?

1169

What is a cache memory?

TCS,

981

Explain what is meant by heap?

BPL,

1127

Explain High Severity and Low Priority with example?

Wipro,

1074

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,

1239

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

MindCracker,

1090

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

CGI,

1035

Which technology does Pentium use - RISC or CISC?

Tech Mahindra,

1064

Where are the global variables stored?

1147

What is the difference between exclusive lock and shared lock?

1198

Can you tell me the difference between semaphore and mutex.

1213

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Un-Answered Questions { Operating Systems General Concepts }

What is the most powerful operating system?

1063

Does chkdsk delete files?

1015

What is the difference between mailbox and queue?

1161

When did 64 bit come out?

1039

Explain the key object oriented concepts used by windows nt?

983

Can you move program files from c to d?

997

What do you mean by memory leak?

1169

What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?

1440

What is system bus? Explain a few related terms.

1090

Can I delete program files x86?

940

What resources are used when a thread created? How do they differ from those when a process is created?

1019

What was the last 32 bit processor?

1012

Can a 64 bit computer run 32 bit programs?

965

How can I tell if a program is 64 bit?

915

When does page fault error occur?

1055

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