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Operating Systems General Concepts Interview Questions
Questions Answers Views Company eMail

Which one you will use to implement critical section?

Verifone,

1588

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

Verifone, Verizon,

1 3809

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 44296

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 9726

process means?

BFL,

2 4166

Thread means?

BFL,

5 11826

linked list is implemented by

BFL,

2 3859

semaphore is

BFL,

4 5373

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 9356

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

Wipro,

10 22975

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 6597

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

Wipro,

3 11535

Critical section is?

Patni, Wipro,

2 5207

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 6185

What are the basic functions of an Operating system?

1 3486


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Un-Answered Questions { Operating Systems General Concepts }

What is pipelining in reference to ram?

423


What is the difference between af_inet and pf_inet?

377


How do I dual boot my pc?

370


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

452


What are the different functions of Syntax phase, Sheduler?

457






How long does chkdsk take to run?

376


Explain translation lookaside buffer?

523


Give some benefits of multithreaded programming.

460


Give an example of Priority Inversion in Scheduling. What are the consequences of Priority Inversion?

409


What is readers-writers problem?

390


Can x86 run 64 bit?

378


What is the difference between chkdsk r and f?

352


What is operating system and type of operating system?

382


What is validity fault?

435


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

399