C Language Quiz (Set 3)

C Language (Set 3)

1 / 10

What is the purpose of the 'const' keyword in C?

To indicate the start of a loop.

To create a pointer to a variable.

To declare a constant variable.

To include a header file.

2 / 10

Which C function is used to open an existing file for reading?

fileopen

fopen

openfile

readfile

3 / 10

What is the purpose of the 'union' in C?

To group multiple variables of different types.

To create an ordered collection of elements.

To define a new data type.

To store data in a sorted manner.

4 / 10

Which operator is used to find the address of a variable in C?

5 / 10

What is the purpose of the 'static' keyword when used with a variable in C?

To declare a variable as constant.

To allocate memory for the variable.

To make the variable local to the current function.

To retain the value of the variable between function calls.

6 / 10

In C, what is the purpose of the 'typedef' keyword?

To define a new data type alias.

To create a pointer to a variable.

To declare a variable.

To include a header file.

7 / 10

What does the 'fwrite' function do in C?

Reads data from a file.

Writes data to a file.

Appends data to a file.

Deletes data from a file.

8 / 10

Which C library function is used to convert a string to an integer?

strint

convert

stoi

atoi

9 / 10

What is the result of the expression '7 / 2' in C?

3.5

3.0

10 / 10

What is the purpose of the 'NULL' pointer in C?

To point to a specific memory address.

To indicate the absence of a value or address.

To store a zero value.

To terminate a string.

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