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Operating Systems General Concepts Interview Questions
Questions Answers Views Company eMail

What is Difference between thread and process?

AirTies, Azingo, Bloomberg, Encora, Goldman Sachs, HCL, HP, MES, Microsoft, Samsung,

28 258798

How to communicate between difference process?

HP, IBM,

2 8811

What is the best way of communication in multi process environment? ex: getting log from different applications from multi servers?

HP,

1 3766

What is scheduling and How it effects the processor efficiency?

HP,

2 4298

What is virtual memory, if OS didt have that concept What are the problems can arise?

HP,

6 14688

What is the best suited algorithm to avoid internal fragmentation?

HP,

2 8437

How to escape from external fragmentation?

HP,

2 4648

What is difference in managing processes in windows, unix, RTOS?

HP,

2274

What is the difference between mutex and semaphore?

HP, Microsoft,

14 56739

What are counting semaphores?

HP, IBM,

4 13439

which is best among semaphores and mutexes?

HP,

2 6438

which is best among pipes, queues, shared memory and why?

HP,

2 5661

What are named pipes?

HP,

3 5562

What is the signal?

HP,

1 4209

What is the highest priority software interrupt?

HP,

1 4732

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Un-Answered Questions { Operating Systems General Concepts }

What is a 64 bit operating system?

568

Under what circumstances do page faults occur? Describe the actions taken by the operating system when a page fault occurs?

579

What is the important aspect of a real-time system?

2849

How long should a chkdsk take?

509

What are the 7 elements of communication?

529




How does disk operating system work?

518

What is tras timing?

570

Explain High Severity and Low Priority with example?

591

What is the concept of reentrancy?

562

What is the difference between shared memory and message passing?

541

Does deleting all files uninstall a program?

517

How do I search all files in windows?

475

Explain a drawback of mvt?

583

How do I know if my os is corrupted?

534

What are co-operating processes?

630

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