AP CS Principles ALGORITHMS AND PROGRAMMING

In a binary number system, how many digits are used to represent each value?

• 2

• 4

• 8

• 1

Look at the image and consider the pseudocode. What type of loop is represented by the structure?

• While loop

• Do-while loop

• For loop

• Infinite loop

What are the two possible results of testing a condition?

• YES and NO​

• POSITIVE and NEGATIVE

• ​TRUE and FALSE​

• 0 or 1

What is an algorithm?

• How to make a jam sandwich

• A way to solve a problem

• instructions

• Step by step instructions to solve a problem

people = ["jo", "maya", "jay"]​

print (people[1])​

what would this result be?

• maya

• jo

• jay

• error

You are working on a program that requires executing a block of code as long as a specific condition is true. What programming construct is most suitable for this situation?

• Function

• Loop

• Conditional statement

• Array

What does this pseudocode segment do?

• Calculates the average of five scores

• Prints the sum of five scores

• Determines the highest score among five

• Sorts an array of five elements

What is the difference between a flowchart and pseudocode? 

• A flowchart is diagramatic whilst pseudocode is written in a programming language (eg. Pascal or Java) 
• A flowchart is textual but pseudocode is diagrammatic 
• A flowchart is a diagrammatic description of an algorithm whilst pseudocode is a textual description of an algorithm 
• A flowchart and pseudocode are the same thing 

What command is this shape for?

• START / STOP
• INPUT / OUTPUT
• PROCESS
• DECISION

What does this pseudocode segment do?

• Prints the even numbers from 1 to 20

• Prints the odd numbers from 1 to 20

• Prints the numbers from 1 to 20

• Prints the multiples of 2 from 1 to 20