AP Computer Science Exam 2

First Name

Last Name

How many times should the start function be defined in a program?

• 0
• 1
• 2
• However many you like

How many times should you call the start function when writing your program?

• 0
• 1
• 2
• However many times you like
• Option 5

Why do we use functions in programming?

• Break down our program into smaller parts
• Avoid repeating code
• Make our program more readable
• All of the above

What is top down design?

• Top down design is a way of designing your program by starting with the biggest problem and breaking it down into smaller and smaller pieces that are easier to solve.
• Top down design is a way that you can create designs on a computer to put on a web page
• Top down design is a way of designing your programs starting with the individual commands first
• Top down design is a way to use loops and classes to decompose the problem

What is a code comment?

• A way to teach Karel a new word
• A way to give notes to the reader to explain what your code is doing
• A message to your teacher in code
• A place to write whatever you want in your code
• Option 5

Which answer choice describes the game with the lowest level of abstraction?

• The Warriors won by 10 points.
• The Warriors had an early lead, but were down by 4 at halftime. They tied it up in the 4th quarter and the game went into overtime. They won by 10 points in overtime.
• First, Steph Curry jumped in the air and grabbed the ball. Then he dribbled it three times and passed it to Klay Thompson…
• First, Steph Curry flexed his left and right quad muscles at the exact same time, then he flexed each muscle in his fingers…

Karel needs to pick up a pile of tennis balls. Which of the following start functions solves the problem at the highest level of abstraction?

• A
• B
• C
• D

Why is it important to write comments for the code segments in a program?

• To confuse other programmers
• To make the code run faster
• To increase the file size
• It is important to write comments for code segments to enhance readability, clarify complex logic, and provide documentation for future reference.