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

Which one you will use to implement critical section?

Verifone,

2226

Which one is not needed for Multi-pgm. enviornment?

Verifone, Verizon,

1 5716

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 48025

RAM chips arranged in 4X6 array and of 8kX4bit capacity each. How many address lines reqd. to access each byte a. 12 b. 16 c.15 d. 17

Hughes,

5 12084

process means?

BFL,

2 5597

Thread means?

BFL,

5 14062

linked list is implemented by

BFL,

2 5295

semaphore is

BFL,

4 8198

abcD+abcd+aBCd+aBCD then the simplified function is ( Capital letters are copliments of corresponding letters A=compliment of a) [a] a [b] ab [c] abc [d] a(bc)* [e] mone (bc)*=compliment of bc

NDS, Wipro,

6 12178

A 12 address lines maps to the memory of [a] 1k bytes [b] 0.5k bytes [c] 2k bytes [d] none

Wipro,

10 27958

In a compiler there is 36 bit for a word and to store a character 8bits are needed. IN this to store a character two words are appended .Then for storing a K characters string, How many words are needed. [a] 2k/9 [b] (2k+8)/9 [c] (k+8)/9 [d] 2*(k+8)/9 [e] none

Wipro,

1 7839

Virtual memory size depends on [a] address lines [b] data bus [c] disc space [d] a & c [e] none

Wipro,

3 13615

Critical section is?

Patni, Wipro,

2 7095

If A>B then F=F(G); else B>C then F=G(G); in this , for 75% times A>B and 25% times B>C then,is 10000 instructions are there ,then the ratio of F to G [a] 7500:2500 [b] 7500:625 [c] 7500:625 if a=b=c else 7500:2500

Wipro,

2 7529

What are the basic functions of an Operating system?

1 4575

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Un-Answered Questions { Operating Systems General Concepts }

What are the reasons for process termination?

1054

Why interprocess communication is required?

991

Can I run 64 bit on x86?

936

What is the code of mobile?

947

To ensure one program doesnt corrupt other program in a Multi program enviornment what you should do?

2236

What is the advantage of a multiprocessor system?

969

What are the states of a process?

1103

How do I know if I have a 64 bit processor?

1009

What are the states associated with the thread?

1052

Does dual boot slow down pc?

948

How does agile communication differ from tradition software engineering communication? How it is similar?

1905

What is a job queue?

1141

What are the deadlock avoidance schemes?

1220

Hi Freinds, Any body is wotking as System Administrator, Please mail me rakesh.kesh881@gmail.com

2241

Describe Banker’s algorithm

1059

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