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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,

1307

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

Verifone, Verizon,

1 3169

Advantage of SRAM over DRAM ?

College School Exams Tests, HCL, Hughes, Intel,

7 42194

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 8560

process means?

BFL,

2 3572

Thread means?

BFL,

5 10629

linked list is implemented by

BFL,

2 3269

semaphore is

BFL,

4 4536

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 7981

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

Wipro,

10 19507

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 5845

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

Wipro,

3 10682

Critical section is?

Patni, Wipro,

2 4505

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 5676

What are the basic functions of an Operating system?

1 3079


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Un-Answered Questions { Operating Systems General Concepts }

Why paging is used in os?

141


How do I find the path of a shared folder?

123


What are the different types of CPU registers in a typical operating system design?

163


Why is 64 bit called x86?

100


How are data structures handled by ntfs?

145






What do you know about interrupt?

150


How can I tell what devices are connected to my usb?

117


How the Swapper works?

159


Why do we need inter process communication?

176


Command Kill any user’s all processes.

156


What are the different types of fragmentation?

178


Is 32gb of ram overkill?

100


Can you move programs from c drive to d?

101


Differentiate between pre-emptive and non-pre-emptive scheduling.

155


How do I run chkdsk?

116