C Language Quiz

Which serves as the entry point for a C program?

• void start()

• start_main()

• main()

• void program()

Pointers in C point towards

• values

• memory locations

• indexes

• data structures

Which operator diligently associates with memory allocation?

• ->

• &&

• malloc

• sizeof

For a variable x, what does &x represent?

• Value of x

• Address of x

• Pointer to x

• x squared

If int num = 10;, what would ++num produce?

• 10

• 11

• 9

• An error

Which is not a property of union in C?

• Union uses memory efficiently by sharing memory.

• All members of a union share the same memory location.

• Size of a union is the sum of sizes of all members.

• We can only access one member of a union at a time.

When does the memory for a local variable within a function get allocated and deallocated in C?

• Compile-time

• Load-time

• Runtime, when the function is called

• Runtime, during program initialization

Which of the following is not a correct storage class in C?

• External

• Register

• Static

• Auto

Which of the following is true regarding a macro in C?

• Macros can't have a return type.

• Macros are handled by the linker.

• Macros and functions are treated similarly during compilation.

• Macros can return multiple values.

What does the const keyword mean when applied to a pointer?

• You can't change the value pointed by the pointer.

• The pointer itself can't point to another location.

• Both A and B.

• Neither A nor B.