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,

1102

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

1150

What is a hard real time OS?

Motorola,

1183

Define max, min heap and search time of heap.

Amdocs, Tavant Technologies, Thomson Reuters, Verifone,

1071

Explain Marshalling?

MaxSolPro,

1037

Explain what are device drivers used for?

BPL,

1048

Explain what is meant by CORE DUMPS?

1063

What are the essential conditions for a deadlock to occur?

Zensar,

1057

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

Yahoo,

1079

How can the FCFS scheduling be made better?

1186

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

Atos Origin,

1085

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

DELL,

1212

What is external fragmentation?

1140

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

Accenture,

1189

How does swapping result in better memory management?

1313

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Un-Answered Questions { Operating Systems General Concepts }

What are dynamic loading, dynamic linking and overlays?

1152

Tell me what is executive in windows nt?

1068

What are the deadlock avoidance algorithms?

1096

What is NOS?

1023

What do you mean by threads in Operating System?

1156

What are the different types package forms?

1112

Explain the command rate in reference to ram?

1065

What are necessary conditions for dead lock?

1092

What is virtual memory? Where it used by OS?

1210

What is long term scheduler in operating system (os)?

1038

What are the various capacities in which a ram is available?

1017

What are ddks?

1028

How does reference counting manage memory allocated objects?

1054

Explain segmentation with paging?

1049

What do you understand by the term ‘transistors’?

998

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