DDS Final Exam Review 3

What is an input on a circuit board?

• A speaker
• A program
• A sensor or button
• An LED

Answer explanation

Inputs like buttons or sensors send data into the circuit.

What does binary represent in computers?

• Sound effects
• Color codes
• Numbers using 0 and 1
• Instructions

Answer explanation

Binary is a number system using only 0s and 1s.

Which is an example of a UI element?

• Database
• Loop
• Button
• Spreadsheet

Answer explanation

Buttons are part of the user interface.

What does the fill() function do in coding?

• Fills a shape with color
• Creates a new shape
• Saves a program
• Runs a loop

Answer explanation

The fill() function changes the color used to fill shapes.

What is the main difference between digital and analog signals?

• Speed
• Power
• Clarity
• How the data is represented

Answer explanation

Digital is represented in 0s and 1s, analog is continuous.

What is an output on a circuit board?

• A printed paper
• A code editor
• An LED light or speaker
• A keyboard

Answer explanation

Outputs respond to data from the circuit, like lights or sounds.

What is the purpose of using a variable in code?

• To draw shapes
• To loop code
• To store data
• To create events

Answer explanation

Variables store information that can be used or changed.

Which of these is a Boolean value?

• Yes
• Blue
• True
• 123

Answer explanation

Boolean values are True or False.

What type of block creates shapes like rectangles in Game Lab?

• Variable block
• Function block
• Drawing block
• Control block

Answer explanation

Drawing blocks like rect(), ellipse(), and line() are used to create visual shapes in Game Lab.

Why do people use algorithms when solving problems?

• They look cool
• They are repeatable steps
• They are random ideas
• They guarantee success

Answer explanation

Algorithms are useful because they are a repeatable set of steps to solve a problem.