C programming Viva questions

1. Which type of language is C ?

Ans- C is a high level language and general-purpose structured programming language.

2. what is a compiler ?

Ans- Compiler is the software that transfer program developed in a high-level language into executable object code.

3. What is an algorithm ?

Ans- The approach and method that used to solve the problem is called an algorithm.

4. What is a token and types of c tokens ?

Ans- The smallest individual units are known as C tokens . C has six types of tokens : Keyword, constants , Identifier , Strings , Operators and Special symbols.

5. How many keywords in c ?

Ans- There are 32 keywords in the c language.

6. what is an identifier ?

Ans- Identifiers are user define name given to variables , Functions and arrays.

7. what are the datatypes present in c ?

Ans- C language supports 2 different type of data types:

1.Primary data types:

These are fundamental data types in C namely integer(int), floating point(float), character(char) and void

2. Derived data types:

Derived data types are nothing but primary datatypes but a little twisted or grouped together like array, structure, union and pointers. These are discussed in details later.

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