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 is a semaphore?

BPL,

1059

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

1054

What is a hard real time OS?

Motorola,

1131

Define max, min heap and search time of heap.

Amdocs, Tavant Technologies, Thomson Reuters, Verifone,

1018

Explain Marshalling?

MaxSolPro,

976

Explain what are device drivers used for?

BPL,

992

Explain what is meant by CORE DUMPS?

1004

What are the essential conditions for a deadlock to occur?

Zensar,

989

How does yahoo handles billions of requests, does it create a thread per request or a process?

Yahoo,

1013

How can the FCFS scheduling be made better?

1117

How will you check if R3 system is a Unicode or non - Unicode system?

Atos Origin,

1010

What are the ways in which fault tolerance can be ensured in systems? (Different redundancy techniques)?

DELL,

1148

What is external fragmentation?

1094

What are the different phases of compiler? What happens in lexical phase?

Accenture,

1108

How does swapping result in better memory management?

1228

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Un-Answered Questions { Operating Systems General Concepts }

What are the deadlock avoidance schemes?

1153

Explain Page Segmentation.

961

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

993

Will chkdsk fix bad sectors?

918

How do I uninstall remnants of uninstalled programs?

851

Explain the concept of the multi-processor systems or parallel systems?

946

Explain the reasons for process suspension?

975

How do I know when chkdsk is done?

917

What do you mean by thread starvation?

1052

How do I find the location of an excel file?

954

Tell me if you know how are the wait/signal operations for monitor different from those for semaphores?

992

How many gb is an operating system?

933

What is lxde desktop?

925

What is the use of Synchronized keyword?

950

Can I change a 32 bit to 64 bit?

912

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