MCQ Tutorial - C->C Basics

1.) Which of the following is not a valid C variable name?

Options are:

A.) float rate;

B.) int $main;

C.) int variable_count;

D.) int number;

2.) Variable name resolving (number of significant characters for uniqueness of variable) depends on

Options are:

A.) Machine architecture

B.) Assemblers and loaders implementations

C.) C language

D.) Compiler and linker implementations

3.) Which of the following is true for variable names in C?

Options are:

A.) Variable can be of any length

B.) Variable names cannot start with a digit

C.) They can contain alphanumeric characters as well as special characters

D.) It is not an error to declare a variable to be one of the keywords (like goto, static)

4.) Variable names beginning with underscore is not encouraged. Why?

Options are:

A.) It is not standardized

B.) To avoid conflicts since library routines use such names

C.) To avoid conflicts with environment variables of an operating system

D.) To avoid conflicts since assemblers and loaders use such names

5.) All keywords in C are in

Options are:

A.) AnyCase letters

B.) CamelCase letters

C.) LowerCase letters

D.) UpperCase letters

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