C Programming Basics

What is a variable in C?

• A variable in C is a function that returns a value

• A variable in C is a reserved keyword used for loops

• A variable in C is a named storage location that can hold a value of a specific data type.

• A variable in C is a constant value that cannot be changed

How many data types are there in C?

• 10

• 5

• 7

• 3

What are the different control structures in C?

• Iteration

• Condition

• Branching

• Sequence, Selection, Loop

What is a function in C?

• A function in C is a variable declaration

• A function in C is a data type

• A function in C is a block of code that performs a specific task.

• A function in C is a loop structure

How are arrays declared in C?

• By using parentheses instead of square brackets

• By using curly braces to enclose the elements

• By specifying the size of the array first followed by the data type of elements

• By specifying the data type of elements followed by square brackets containing the size of the array.

What is the syntax for declaring a variable in C?

• float value;

• int num;

• bool flag;

• string name;

What is the size of int data type in C?

• 2 bytes on 32-bit systems and 4 bytes on 64-bit systems

• 8 bytes on 32-bit systems and 16 bytes on 64-bit systems

• 1 byte on 32-bit systems and 2 bytes on 64-bit systems

• 4 bytes on 32-bit systems and 8 bytes on 64-bit systems

What is the purpose of if-else statement in C?

• To execute different blocks of code based on a specified condition.

• To skip the condition check

• To always execute the else block

• To confuse the compiler

How are functions defined in C?

• ReturnType function_name(ParameterType parameter1, ParameterType parameter2){ // Function body }

• ReturnType function_name(ParameterType parameter1, ParameterType parameter2); // Function body

• Return_Type function_name(Parameter_Type parameter1, Parameter_Type parameter2, ...){ // Function body }

• void function_name(ParameterType parameter1, ParameterType parameter2){ // Function body }

What is the use of switch case in C?

• Switch case in C is used for iteration purposes only.

• Switch case in C is used to define functions.

• Switch case in C is used to handle exceptions.

• Switch case in C is used to execute different blocks of code based on the value of an expression.