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,

2145

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

Verifone, Verizon,

1 5567

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 47760

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 11863

process means?

BFL,

2 5455

Thread means?

BFL,

5 13860

linked list is implemented by

BFL,

2 5171

semaphore is

BFL,

4 7990

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 11952

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

Wipro,

10 27522

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 7734

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

Wipro,

3 13465

Critical section is?

Patni, Wipro,

2 6910

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 7411

What are the basic functions of an Operating system?

1 4461

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Un-Answered Questions { Operating Systems General Concepts }

Explain briefly about assembler and its functioning?

1001

What is the limit of ram capacity in a 32bit os?

1003

Explain the key object oriented concepts used by windows nt?

912

How will you check if your R3 system is 32bit or 64bit?

951

Explain Marshalling?

975

How do I remove prime os from my pc?

978

What are the different functions of an operating system?

959

What is dynamic scheduling in operating system (os)?

939

Explain the different types of fragmentation?

1093

How much ram do I need 2019?

907

Where the user store resides in OS?

969

What are the 3 categories of operating systems?

986

What is normal operating system?

970

How you can check whether a machine is 64 bit or 32 bit?

957

When does stack (process stack) overflow? What are the remedies?

1014

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