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

What is Difference between thread and process?

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

28 268974

How to communicate between difference process?

HP, IBM,

2 11756

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

HP,

1 4928

What is scheduling and How it effects the processor efficiency?

HP,

2 5874

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

HP,

6 16968

What is the best suited algorithm to avoid internal fragmentation?

HP,

2 9954

How to escape from external fragmentation?

HP,

2 6014

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

HP,

2848

What is the difference between mutex and semaphore?

HP, Microsoft,

14 62001

What are counting semaphores?

HP, IBM,

4 17375

which is best among semaphores and mutexes?

HP,

2 7784

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

HP,

2 7277

What are named pipes?

HP,

3 7218

What is the signal?

HP,

1 5747

What is the highest priority software interrupt?

HP,

1 6164

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Un-Answered Questions { Operating Systems General Concepts }

When does thrashing occur?

998

What is a named pipe?

994

What is an OS? Explain it to a layman.

1002

Explain bootstrap program in operating system.

1061

How do I empty my mac cache?

1019

Explain booting the system in operating system.

1039

Explain the concept of the batched operating systems?

1022

WHATE IS DIFFERENT BETWEEN ANLOG , PLC & DCS OR EXPLAIN ANALOG / PLC / DCS SYSTEME

3019

Does dual boot affect performance?

995

How do I know if my hardware supports 64 bit?

935

Explain translation lookaside buffer?

1230

Can I have two browsers on my computer?

967

How many types of fragmentation occur in operating system?

973

Explain how a copying garbage collector works. How can it be implemented using semispaces?

1024

What is difference between program and x86?

1025

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