C Programming mcq questions with answer – Set 1

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#1. Who is the father of C language?

Steve Jobs

Steve Jobs

James Gosling

James Gosling

Dennis Ritchie

Dennis Ritchie

Rasmus Lerdorf

Rasmus Lerdorf

#2. Which of the following is not a valid C variable name?

int number;

int number;

float rate

float rate

int variable_count

int variable_count

int $main;

int $main;

#3. All keywords in C are in ____________

LowerCase letters

LowerCase letters

UpperCase letters

UpperCase letters

CamelCase letters

CamelCase letters

None of the mentioned

None of the mentioned

#4. Which of the following is true for variable names in C?

They can contain alphanumeric characters as well as special characters

They can contain alphanumeric characters as well as special characters

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

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

Variable names cannot start with a digit

Variable names cannot start with a digit

Variable can be of any length

Variable can be of any length

#5. Which is valid C expression?

int my_num = 100,000;

int my_num = 100,000;

int my_num = 100000;

int my_num = 100000;

int my num = 1000;

int my num = 1000;

int $my_num = 10000;

int $my_num = 10000;

#6. Which of the following cannot be a variable name in C?

volatile

volatile

true

true

friend

friend

export

export

#7. What is short int in C programming?

The basic data type of C

The basic data type of C

Qualifier

Qualifier

Short is the qualifier and int is the basic data type

Short is the qualifier and int is the basic data type

All of the mentioned

All of the mentioned

#8. Which of the following declaration is not supported by C language?

String str;

String str;

char *str;

char *str;

float str = 3e2;

float str = 3e2;

Both String str; & float str = 3e2;

Both String str; & float str = 3e2;

#9. Which keyword is used to prevent any changes in the variable within a C program?

immutable

immutable

mutable

mutable

const

const

volatile

volatile

#10. What is the result of logical or relational expression in C?

True or False

True or False

0 or 1

0 or 1

0 if an expression is false and any positive number if an expression is true

0 if an expression is false and any positive number if an expression is true

None of the mentioned

None of the mentioned

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