C+ Programming Toughest Exam! Quiz

1. What will this code produce when compiled and run?

There is an error in this code, and it will not run.

Sum = 0

Sum = 7

There is not enough information to answer this question.

2. Examine this C/C++ code. What is a suitable variable declaration for the variable "a"?

Int a;

Float a;

Double a;

None of these options are correct.

3. Examine this code. Which option below do you think best describes this code?

There is an error in this code.

The integer a is declared and defined as 5.

The decimal variable a is declared and defined.

The variable a is declared, but not defined.

4. What will this code produce when compiled and run?

Result = 5, 7

Result = 5, 2

There is an error in this code, and it will not run.

None of these options are correct.

5. What will this code produce when run?

Not Equal

Equal

This code won't run - there is an error.

None of these options are correct.

6. Examine this Colobot code. What will this robot do when an enemy approaches?

It will change direction to run away (backwards) from the enemy when it is close enough.

This robot will do nothing - it will sit still until it dies.

The robot will not change its direction, but will try to run away from the enemy.

The robot will try to run into the enemy robot.

7. What will this code produce when it is run?

There is an error in this code, and it will not run.

Result = 1 and 3

Result = 2 and 4

None of these answers.

8. Consider the Bisection method code as shown. What will the final value of e be when the code is run?

E = 3.59375

E = 3.741657

E = 3.4375

This code will not run - there is a mistake in the code.

9. Consider the radar data and colobot code shown here. The position of your robot is shown by the red dot, while other item positions are shown by blue dots.After this code is run, what might the array "a" contain?

A = [7.07, 11.18, 25, 31.622, 0]

A = [5, 10, 25, 30, 0]

A = [31.622, 0, 0, 0, 0]

None of these options are correct.

10. Consider this MATLAB code. What do you think this code does?

Uses the Bisection method to solve the equation erf(x) = x - 2

Uses the Newton Raphson method to solve the equation erf(x) = x - 2

This code will not run, as there is an error in it.

This code does not use either the Bisection Method or Newton-Raphson method.

11. Consider this code as shown. When it is run, what will it show?

This code will not run - there is an error.

C = 5

C = 2

C = 3

12. Consider this code - what will the value of c be?

This code is not correct, and will not run.

C = 5

C = false

C = 0

13. If (dy/dt) = 5y and y = 2 when t = 0, compute y at t = 0.6 using the Euler method. Use a timestep dt of 0.2. (i.e. dt = 0.2).

Y(0.6) ~ 16

Y(0.6) ~ 10

Y(0.6) ~ 40

None of these options are correct.

14. What will this code produce when run?

A = 5

A = 0000743DEF2

This code will not work - there is an error.

None of these - the code will produce something else.

15. Consider the code shown - when it is run, what will it show?

A = 0000023FD74, b = 5

A = 5, b = 5

The code will not run - there is an error.

A = 0, b = 5.

16. What will this code produce when run?

A = 5

A = 00007542DCE1

This code won't run - there is an error.

None of these options are correct. The code will produce something else.

17. What will this code produce when run?

A = 5

A = 00000742DEF0

This code won't run - there is an error.

None of these options - this code will produce something else.

18. Examine this code - what will it produce when it is run?

Equal

Not equal

This code won't run - there is an error!

None of these options are correct.

19. Read this code - what can you say about the variables a and b?

The floating point variable a cannot be defined as an integer 5.

The variables a and b are both declared and defined.

The variables a and b are only declared.

This is a mistake in this code - it will not work!

20. Consider the following code. What will it produce when it is run?

The code is not correct, and will not run.

C = 1

C = 0

None of these answers are correct.

21. Consider this Colobot code designed to shoot at an enemy. What problem does this method have?

The code is fine - this robot will hit its target if the enemy is less than 5 units away.

The code won't work - there is an error in the code (i.e. it won't compile or run)

The robot won't hit a moving target, even if it is range, because the target data is old.

22. Examine this code. Is there an error in this code, and if so, which line is it on?

Line 4 (The line with the for loop)

Line 1 (The line with the #include)

Line 7 (The line with the printf)

There are no errors in this code.

23. What will this code produce when run?

B = 5

B = 4

None of these options are correct.

B = 2

24. Using the Trapezoid Rule, find the integral of x*sin(x) from x = 0 to 1 using 5 parts. What is the approximate answer using the Trapezoid Rule?

None of these answers are correct.

0.301

0.389

0.221

25. What will this code produce when run?

This code won't run - there is an error.

Result = 1 and 3

Result = 2 and 4

This code will run - but the array b is not defined. It will produce rubbish.

26. Examine this code. Which of the following choices is correct?

There is a mistake in this code.

Both variables a and b are declared as integers.

Both variables a and b are declared and defined.

The integer b is defined and declared, while the integer a is only defined.

27. Read this code and choose the correct option below. When this code is run, what will be shown?

This code will not run - there is an error in the code.

A = %d\n

A = 5

A = 5\n

28. Consider this code and choose the best option below.

This code is incorrect and will not work.

This code MAY be incorrect - there is not enough information.

The variables c and d are declared.

The variables c and d are declared and defined.

29. Consider the attached Euler method code used to solve an ODE.After looking at this code - what do you think the ODE being solved is?

This code won't work - the output variable u is not defined, so the code won't run.

(See this equation)

None of these options are correct.

30. Consider the Bisection method code shown. What will the final value of e be when the computation is completed?

There is a mistake in this code, and it will not run.

E = 3.7416

E = 4.8537

E = 3.59375