AP CSP Worksheet 2

Which of the following is the BEST example of abstraction?

• A program that has Karel place a ball in each corner

• A main function that is used to list all the steps of a program

• A loop that has Karel move in a 2 by 2 square

• A function that allows Karel to turn right

Why do we use abstraction?

• Abstraction helps us to make our programs run faster

• Abstraction helps us to make our programs longer

• Abstraction helps us manage program complexity

• All of these choices

Which statement about API (Application Programming Interface) is most accurate?

• APIs help making programming easier by using abstraction to provide building blocks for developers

• APIs are only used by software engineers to develop programming languages

• APIs replace the need for documentation in a program

• All of the these options.

The AP CSP exam uses the following to repeat a block of statements n times:

• Almost There ... Almost There ... Almost There ... Made it!

• Almost There ... Almost There ... Almost There ... Made it!

• Almost There ... Made it! Almost There ... Made it! Almost There ... Made it!

• Almost There ... Made it! Almost There ... Made it! Almost There ... Made it!

Given the following grid, which of the following programs will move Karel to the gray square and face the same direction he is currently facing?

• 
• 
• 
• 

In the AP CSP pseudocode language, DISPLAY(expression) displays the expression followed by a space.

Given the following program, and AGE is equal to 18, what will the program print?

• You are old enough to vote

• You are old enough to vote You are not old enough to vote

• You are old enough to vote You are old not enough to vote

• You are not old enough to vote

Given the following programs, which of the following will result in Keep it up! being displayed?

• 88 or 89 will display Keep it up!

• 89 or 90 will display Keep it up!

• 90 or 91 will display Keep it up!

• Only 90 will display Keep it up!

Given the following grid and program, how many times will Karel move forward?

• 2 times then stop

• 2 times then crash into the wall

• 4 times then crash into the wall

• 4 times then stop

What will the following program display?

• The program will result in an infinite loop

• 1 2 4 8

• 1 2 4 8 16

• 1 2 4 8 10

What is code?

• A set of instructions written in a programming language

• A physical artifact that can run a program

• A group of interconnected computing devices capable of sending or receiving data

• All of the above