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,

1150

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

1208

What is a hard real time OS?

Motorola,

1258

Define max, min heap and search time of heap.

Amdocs, Tavant Technologies, Thomson Reuters, Verifone,

1113

Explain Marshalling?

MaxSolPro,

1100

Explain what are device drivers used for?

BPL,

1097

Explain what is meant by CORE DUMPS?

1115

What are the essential conditions for a deadlock to occur?

Zensar,

1110

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

Yahoo,

1130

How can the FCFS scheduling be made better?

1229

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

Atos Origin,

1134

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

DELL,

1251

What is external fragmentation?

1192

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

Accenture,

1231

How does swapping result in better memory management?

1356

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Un-Answered Questions { Operating Systems General Concepts }

What is the programs x86 folder?

1135

What is hard disk?

1049

Does 64bit mean 64bit?

1099

Explain a heavy weight process?

1126

Who made the first 64 bit processor?

1026

How do I recover files from my usb?

1057

How does DMA increase system concurrency? How does it complicate hardware design?

1327

What are the methods for handling deadlocks?

1106

Which vpn protocol is best?

1084

What is dual-mode operation?

1238

What is a device queue?

1182

Tell us something about mutex.

1140

Where are the global variables stored?

1197

What are the two main types of files?

1143

What is dining philosophers’ problem?

1131

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