Interview Questions and Answers:Operating System Concepts-Set 1

Q).1 State three Basic purposes of an Operating System. 

Q).2 Can you tell me the main differences between operating systems for mainframe computers and personal computers? 

 Q).3 State the four steps that are required to run a program on a completely dedicated machine. 

 Q).4 What is the name of the part of machine level instruction, which tells the central processor what has to be done ? 

 Q).5 What is the major difficulty that a programmer must overcome in writing an operating system for a real-time environment ?

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Interview Questions and Answer: Fundamentals of C-Set 3

Q.1
Write a function to create a Circular Link list.

Q.2
Are the following two statements identical?
char str[6] = "Tnl" ;
char *str = "Tnl" ;

Q.3
What is the difference between %d and %*d in c language?

Q.4
Tell me the difference between i++ and i+1 ?

Q.5
State the difference between macros and inline functions?


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Interview Questions and Answer: Fundamentals of C-Set 2

Q.1
Can you tell me how to print largest of three numbers without using "if","while" or "do-while" statement in main() ?

Q.2
Is the following code fragment correct ?
const int x = 10 ;
int arr[x] ;

Q.3
Write a program to print infinite number.

Q.4
What is the use of semicolon at the end of every statement ?

Q.5
Tell me the difference between NULL and NUL.


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Interview Questions and Answer: Fundamentals of C-Set 1

Q.1
Do you know about Dangling pointer in C ?

Q.2
What is the difference between Pretest loop and Posttest loop ?

Q.3
Can you find an entered number is EVEN or ODD without using any conditional statement ?

Q.4
What is the basic difference between '\0' and "" ?

Q.5
In printf() Function- What is the difference between "printf(..)" and "sprintf(..)"?


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