The ones who are crazy enough to think they can change the world are the ones who do.
- Steve Jobs

C Basic Interview Questions

6. Define keyword in C?

Keywords are those words which tells the compiler what to do . In C Programming, keywords are otherwise said to be reserved words. Keywords are always in lowercase letters. Keywords cannot be changed by a programmer. Keywords cannot be used as variable name, function name, array name by a programmer. Refer for More C Keywords

7. Define variables in C?

Generally, Variables are things which are all changable. We encounter several variables in our day-to-day life. Some Examples:

  • Time is variable which changes for every single seconds.
  • Climate is variable which changes as per season.
  • Rheostat is variable which changes to increase or to decrease circuit resistance.
  • Speed is variable, either one can accelerate to increase the speed or decelerate to decrease the speed.

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8. Define identifiers in C?

An identifier is a name that identifies unique things. here things may be a person, object, idea or anything. The following diagram clearly represents the concept of identifier. Refer for More C Identifiers.

9. What are the different data types in C?

  • int
  • unsigned int
  • char
  • float
  • double
  • long double

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10. What are the different types operators in C?

  • Arithmetic Operators
  • Relational operators
  • Logical operators
  • Bitwise operators

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