Interview Question of C Language

Interview Question of C Language :

Interview Question of C Language This article will help you with important C Programming Interview Questions and Answers along with examples for you to crack any Interview.Most Common C Programming Interview Questions.

Interview Question of C Language

Interview Question of C Language :

Q.1 What is Operand?
Ans: The data of variables on which the operation is performed is called an operand.

Q.2 Type of loop in c?
Ans: There are three types of the loop-

1.for loop
2.While -loop
3. Do while loop

Q.3 What is data type?
Ans:
-It is is a type of data that is used in the program.
-The data type defines the amount of storage area allocated to variables.
-Examples of the data types are int, float, char, etc.


Q.4 What is programming?
Ans: Program is a process to write a code to construct an application and the code is called program.

Q.5 What is looping?
Ans: To run the body continuously until a required condition is fulfilled called looping.


Q.6 What is the keyword?
Ans :
-The word which is predefined in the library is called keyword
-Its functionality is also predefined
-We can not use the keyword as a variable.

Q.7 What is math function?
Ans : 
-It is used to perform the mathematical related operation.
-There are much-predefined math function in C library
-all the math functions are predefined in math.h header file.


Q.8 When the C language was developed?
Ans: In 1972 at AT & T's Bell Lab(USA).


Q.9 What is a function?
Ans:-
-It is a collection of statement that performs a specific task.
-It executes when it is called by its name.
-A large program is divided into a number of small building blocks for simplicity and this building block is called function.
-We can call a function again and again.
-The most important features of function are code reusability.
-The c library provides many pre-defined functions.

Q.10 What is the structure?
Ans:
-It is a collection of data of different data types.
-It is a user-defined data type.
-Data can of int, char, float, double, etc.(data type.)
-We can access the member of the structure by making the variable of structure.
-Struct keyword is used to create a structure.


Interview Question of C Language:

Q.11 What is constant?
Ans :
-It refers to a fixed value that means its value can not be changed at any instant.
-It is also called Literals.
-It can be of any data type like int.float, char, etc.


Q.12 What is the Identifier?
Ans:
-It is the name of different parts of programming elements like a variable name, method name, etc.
-It is a string of alphanumeric characters that begins with the alphabet or underscore.


Q.13 Key point about the function?
Ans: there are three key points of the function
1. Function Declaration⇒It is used to declare a function.
2. Function Definition⇒means to write the code to perform the specific task.
3. Function calling⇒It means to call the function to execute the function code.


Q.14 What is the modulus operator?
Ans :
1. It returns the remainder of a division.
2.% Symbol is used to calculate modulus.
Example:-16%6=4 because the remainder is 4 when we divide 16 by 6.


Q.15 What is a goto statement?
Ans : 
-It is a user-controlled jump statement that is controlled by the user.
-It is always used with labels.


Q.16 Type of function?
Ans: there are to the type of function-
1.Predefined function
2.User-defined Function


Q.17 What is the union?
Ans :
1. It is a collection of data of different data types.
2. It is a user-defined data type.
3. Data can of int, char, float, double, etc. data type.
4. We can access the member of the union by making the variable of the union.
5. The Union keyword is used to create a union.
6. The union can store a single value at a time.


Q.18 What is Operator?
Ans: It is a special symbol that is used to perform the operation like arithmetic, logical, etc.


Q.19 What is the continue statement?
Ans :
-It is a keyword which is used to skip the next statement and continue the loop.
-it is mostly used with a loop.


Q.20 What is Printf()?
Ans :
1. It is a predefined function that is used to print data or information on to the output screen.
2. It is defined inside stdio.h header file.
3. In other words, we can say that it is used for taking output.