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C Interview Questions

Below we have listed all the C Interview Questions and answers. Feel free to comment on any C Interview Questions or answer by the comment feature available on the page.

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View All C Interview Questions & Answers - Exam Mode / Learning Mode

C is a high-level and general purpose programming language that is ideal for developing firmware or portable applications. Originally intended for writing system software, C was developed at Bell Labs by Dennis Ritchie for the Unix Operating System (OS) in the early 1970s. With the increasing popularity of object-oriented programming, C is being rapidly replaced as "the" programming language by C++, a superset of the C language that uses an entirely different set of programming concepts, and by Java, a language similar to but simpler than C++, that was designed for use in distributed networks.

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Subcategories for C Interview Questions & Answers :-

Following are sub categories for which Interview Questions & Answers are available under C Interview Questions & Answers. Please select the appropriate sub-category:-

Arrays in C Interview Questions & Answers (18) Exam Mode | Learning Mode

Branches & Loops in C Interview Questions & Answers (22) Exam Mode | Learning Mode

C Basics Interview Questions & Answers (92) Exam Mode | Learning Mode

Dynamic Memory Allocation in C Interview Questions & Answers (21) Exam Mode | Learning Mode

File Operations in C Interview Questions & Answers (16) Exam Mode | Learning Mode

Functions in C Interview Questions & Answers (59) Exam Mode | Learning Mode

Operators in C Interview Questions & Answers (22) Exam Mode | Learning Mode

Pointers in C Interview Questions & Answers (43) Exam Mode | Learning Mode

Strings in C Interview Questions & Answers (32) Exam Mode | Learning Mode

Structures in C Interview Questions & Answers (39) Exam Mode | Learning Mode

Variables in C Interview Questions & Answers (39) Exam Mode | Learning Mode

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Question
Rating
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main(int x).............

explaination on arguments passed thr' main

4.3 Rating
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When does the compiler not implicitly generate the address of the first element of an array ?
3.9 Rating
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How to write functions in c program without using headerfile.
4.4 Rating
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What is the output of the following program?

#define SQR(x) (x*x)

main()

{

int a,b=3;

a= SQR(b+2);

printf("%d",a);

}



3.8 Rating
View Answer
When should the volatile modifier be used ?
4.2 Rating
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Between n+1 and n++ which executes faster or both take the same time to execute?
3.5 Rating
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What are the advantages of pointers,give me programs containing variables and pointer variables?
4.3 Rating
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How i can run *.bat or *.cmd file by using system function in c ?
4.2 Rating
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When should a type cast be used ?
4.5 Rating
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What is Preprocessor ?
4.5 Rating
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What is the output of the following program:
Int x = 3, y = 2;
foo(x, y)
{ x = x + 2;
y = y + 3;
printf (?%d %d?, x,y);
}
main0
{ int x,y;
x = 5;
y = 5;
printf (?%d %d?, x,y);
}
a) 7 8 5 5 b) 5 5 5 5 c) 5 5 3 2 d) 7 8 7 8
4.5 Rating
View Answer
Would the following program compile?

main()
{
int a=10,*j;
void *k;
j=k=&a;
j++;
k++;
printf("n%u%u",j,k);
}




4.5 Rating
View Answer
A lift can accept a maximum load of 1000 kg.write a program to check how many people enter lift & what is the total weight currently present in the lift? If it exceeds maximum limit,set a variable for overweight.if overweight variable is set ring alarm.
4.2 Rating
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How do you write a C program which can calculate lines of code but not counting comments?

4.2 Rating
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How to find size of an datatype without using sizeof operator?
4.6 Rating
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main()
{
{
unsigned int bit=256;
printf("%d", bit);
}
{
unsigned int bit=512;
printf("%d", bit);
}
}


3.9 Rating
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main()
{
int i=5;
printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
}
2.9 Rating
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Why does a linker error occurs for the segment:
main()
{
extern int i;
i=20;
printf("%d",sizeof(i));
}
2.9 Rating
View Answer
What is the purpose of realloc( ) ?
4.2 Rating
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What is the difference between unix and linux.
3.6 Rating
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India News Network
Latest 20 Questions
Payment of time- barred debt is: (a) Valid (b) Void (c) Illegal (d) Voidable
Consideration is defined in the Indian Contract Act,1872 in: (a) Section 2(f) (b) Section 2(e) (c) Section 2(g) (d) Section 2(d)
Which of the following is not an exception to the rule, "No consideration, No contract": (a) Natural love and affection (b) Compensation for involuntary services (c) Completed gift (d) Agency
Consideration must move at the desire of: (a) The promisor (b) The promisee (c) The promisor or any other party (d) Both the promisor and the promisee
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
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