Data Structure Through C

What is an array in C?

• A collection of variables of different data types.
• A collection of variables of the same data type.
• A collection of functions.
• A collection of pointers.

How is an array indexed in C?

• 1 to n
• 0 to n-1
• -1 to n-1
• -1 to n

What is the size of the array int arr[10]?

• 10 bytes
• 20 bytes
• 40 bytes
• Depends on the compiler

Which of the following is the correct way to declare a function in C?

• functionName();
• returnType functionName(parameters);
• returnType functionName;
• functionName returnType(parameters);

What is a pointer in C?

• A variable that stores the address of another variable.
• A variable that stores data.
• A variable that points to a function.
• A variable that stores a character.

What does the following statement declare: int *ptr;?

• A pointer to an integer.
• An integer variable.
• A pointer to a character.
• An array of integers.

How do you access the value pointed to by a pointer in C?

• &ptr
• *ptr
• ptr
• ptr*

Which operator is used to get the address of a variable?

• *
• &
• %
• @

What is a structure in C?

• A collection of variables of different data types.
• A collection of variables of the same data type.
• A collection of pointers.
• A collection of arrays.

How do you access a member of a structure in C?

• Using the dot operator (.)
• Using the arrow operator (->)
• Using the asterisk operator (*)
• Using the ampersand operator (&)