Virtual Labs

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Aim

Theory

Objective

Pretest

Procedure

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Posttest

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Aim

Theory

Objective

Pretest

Procedure

Simulation

Posttest

References

Feedback

Functions

Choose difficulty:

Beginner

Intermediate

Advanced

1. Which of the following is an invalid function prototype?

a: float fun(int aa, int bb); Explanation

Explanation

b: float fun(int aa, int ); Explanation

Explanation

c: float fun(float , int ); Explanation

Explanation

d: float fun(int aa, bb); Explanation

Explanation

2. What is the return type of the function with prototype: `int func(char x, float v, double t);`

a: char Explanation

Explanation

b: int Explanation

Explanation

c: float Explanation

Explanation

d: double Explanation

Explanation

3. What is printed when this program is executed?
code snippet

a: 4 Explanation

Explanation

b: 5 Explanation

Explanation

c: 6 Explanation

Explanation

d: 7 Explanation

Explanation

4. Which of the following statements about function parameters in C is correct?

a: Function parameters are always passed by reference. Explanation

Explanation

b: Function parameters are always passed by value unless pointers are used. Explanation

Explanation

c: Function parameters must be global variables. Explanation

Explanation

d: Function parameters must be arrays. Explanation

Explanation

5. What will be the output of the following code?
code snippet

a: 2 3 Explanation

Explanation

b: 3 2 Explanation

Explanation

c: 0 0 Explanation

Explanation

d: Garbage value Explanation

Explanation

6. Which of the following is the best way to avoid code duplication when writing similar functions in C?

a: Use macros for all code. Explanation

Explanation

b: Write separate functions for each case. Explanation

Explanation

c: Use function parameters to generalize behavior. Explanation

Explanation

d: Copy and paste code blocks. Explanation

Explanation

7. What is the output of the following code?
code snippet

a: 3 Explanation

Explanation

b: 4 Explanation

Explanation

c: 7 Explanation

Explanation

d: 0 Explanation

Explanation

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