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,

2157

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

Verifone, Verizon,

1 5601

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 47804

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 11894

process means?

BFL,

2 5477

Thread means?

BFL,

5 13883

linked list is implemented by

BFL,

2 5183

semaphore is

BFL,

4 8027

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 11987

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

Wipro,

10 27568

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 7746

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

Wipro,

3 13478

Critical section is?

Patni, Wipro,

2 6934

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 7427

What are the basic functions of an Operating system?

1 4471

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Un-Answered Questions { Operating Systems General Concepts }

Can I use x86 on 64bit?

916

How long does chkdsk f'r take?

1031

Explain the concept of the batched operating systems?

958

What is an immutable object? How can it help in writing a concurrent application?

982

What is synchronization? What are the different synchronization mechanisms?

993

Tell me what has triggered the need for multitasking in pcs?

872

What complications does concurrent processing add to an operating system?

1137

What is starvation in operating system?

1132

What are the three main purposes of an operating system?

944

Does ram affect excel performance?

889

Which is first operating system?

1004

What are the 5 basic filing systems?

952

What is the use of chkdsk f?

964

Suppose if we have a variable 'I' in run method, if I can create one or more thread each thread will occupy a separate copy or same variable will be shared?

1101

What is crpc in law?

1019

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