Quiz 4

Quiz

•

Beginner

•

+60 XP

•

15m

•

Unity Technologies

This quiz will assess your knowledge of the skills and concepts learned in Unit 4.

Languages available:

Question 1

You’re trying to write some code that creates a random age between 1 and 100 and prints that age, but there is an error. What would fix the error?

Select only one

Change line 1 to “private float age”

Add the word “int” to line 8, so it says “int age = …”

On line 7, change the word “private” to “void”

Add a new line after line 8 that says “return age;”

Question 2

The following message was displayed in the console: “Monica has 20 dollars”.

Which of the line options in the PrintNames function produced it?

Select only one

Option A

Option B

Option C

Option D

Question 3

The code below produces “error CS0029: Cannot implicitly convert type 'float' to 'UnityEngine.Vector3'”. Which of the following would remove the error?

Select only one

On line 1, change “Vector3” to “float”

On line 3, change “=” to “+”

Either A or B

None of the above

Question 4

Which of the following follows Unity’s naming conventions (especially as it relates to capitalization)?

Select only one

Line A

Line B

Line C

Line D

Question 5

You are trying to assign the powerup variable in the inspector, but it is not showing up in the Player Controller component. What is the problem?

Select only one

You cannot declare a powerup variable in the Player Controller Script

You cannot assign GameObject type variables in the inspector

The powerup variable should be public instead of private

The PlayerController class should be private instead of public

Question 6

Your game has just started and you see the error, “UnassignedReferenceException: The variable playerIndicator of PlayerController has not been assigned.” What is likely the solution to the problem?

Select only one

PlayerController variable in the playerIndicator script needs to be declared

The playerIndicator variable needs to be made private

The PlayerController script must be assigned to the player object

An object needs to be dragged onto the player Indicator variable in the inspector

Question 7

You are trying to create a new method that takes a number and multiplies it by two. Which method would do that?

Select only one

Method A

Method B

Method C

Method D

Question 8

Which comment best describes the code below?

Select only one

// If the player collides with an enemy, destroy the enemy

// If the enemy collides with a spike, destroy the spike

// If the enemy collides with a spike, destroy the enemy

// If the player collides with a spike, destroy the spike

Question 9

The code below produces the error, “error CS0029: Cannot implicitly convert type 'UnityEngine.GameObject' to 'UnityEngine.Rigidbody'”. What could be done to fix this issue?

Select only one

On line 1, change “collision” to “Rigidbody”

On line 2, change “gameObject” to “Rigidbody”

On line 3, delete “.gameObject”

On line 3, add “.GetComponent<Rigidbody>()” before the semicolon

Question 10

Which of the following statements about functions/methods are correct:

Select only one

Submit answers

To calculate your score, submit your answers to the quiz. A passing score will mark this quiz complete.

Correct answers needed to pass

1/10

Retake allowed after

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