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,

2274

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

Verifone, Verizon,

1 5777

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 48256

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 12232

process means?

BFL,

2 5701

Thread means?

BFL,

5 14206

linked list is implemented by

BFL,

2 5390

semaphore is

BFL,

4 8329

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 12366

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

Wipro,

10 28223

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 7899

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

Wipro,

3 13728

Critical section is?

Patni, Wipro,

2 7216

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 7623

What are the basic functions of an Operating system?

1 4631

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Un-Answered Questions { Operating Systems General Concepts }

What are the main functions of a kernel?

1107

Is it safe to delete program data?

1088

Binding of instructions and data to memory?

1191

WHATE IS DIFFERENT BETWEEN ANLOG , PLC & DCS OR EXPLAIN ANALOG / PLC / DCS SYSTEME

3075

How does disk operating system work?

1023

What is aging in operating system?

1176

Define max, min heap and search time of heap.

1109

How do I force a program to close?

1020

Explain the trda?

1061

Can you fix blue screen of death?

1035

What are page frames?

1002

Which technology does Pentium use - RISC or CISC?

1097

Explain about compiler and the functions executed by them?

1081

State the main difference between logical from physical address space.

1158

What do you call a bootable disk that contains a full usable os?

1106

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