CSP-Selection and Iteration

Which of the following code segments will display “Yes” if and only if the value of the variable friend is Grace and the value of the variable favoriteFood is either pizza or popcorn?

Select two answers.

• 
• 
• 
• 

What will be displayed when the code segment below, using the variables a, b and c, is run?

a ← 1

b ← 0

c ← b

b ← 3

a ← c

DISPLAY (a)

DISPLAY (b)

• 0 0

• 0 3

• 1 0

• 3 3

Consider the following two programs to the right. Which of the following statements can replace <missing statement> to make Program B display the same outcome as Program A when the inputs typed are the same?

• 
• 
• 
• 

A student developed a program that outputs the name of a fruit that begins with a letter, dependent upon the variable keyPressed, which stores the letter (from A to Z only) a user types on the keyboard. Below is a section of code from her program:

Which of the following descriptions below would be a way that this student might have written the rest of her code so that it executes as intended? Select two answers.

• Use 25 nested IF/ELSE blocks where the IF portion is formatted like the code segment above (changing the letters of the alphabet and fruits) and the else simply holding the next IF portion until the last ELSE, which displays a fruit that begins with Z.

• Take the above code and insert it into a REPEAT block that repeats 26 times.

• Use 26 IF/ELSE blocks where the IF portion is formatted like the code segment above (changing the letters of the alphabet and fruits) and each ELSE portion displays “You did not choose this letter”.

• Use 26 IF blocks formatted similarly to the one above (changing the letters of the alphabet and fruits).

Consider a robot that is initially facing north in a 5-by-5 grid, as shown in the diagram below. A program segment has been written to move the robot to the upper-right corner where it should face west.

Which 2 lines of code in the segment above must be switched in order for the program to correctly move a robot from the starting position to the ending position? Select two answers.

• Line 5

• Line 2

• Line 7

• Line 9

Consider the given code using variables a, b, and c. What will be the output of this code?

 

• 6 12

• 2 12

• 2 6

• 12 12

This is a section of code taken from a larger program.

What outputs would be the best choice to substitute in for “missing output 1” and “missing output 2”, based on the condition?

• 
• 
• 
• 

Consider the following code segment that appears in the middle of a program.

Which of the following can replace the missing statement in the REPEAT UNTIL block so that the user will be required to enter the correct password of "swordfish" before they can continue on with the rest of the program.

• userPassword = "swordfish"

• "swordfish"

• userPassword ≠ "swordfish"

• userPassword ← INPUT

Answer explanation

When the code above is run, what will be the final value of the variable x, displayed at the end of the program?

• -12

• 12

• 9

• -9

Answer explanation

Using the script below, what is the final output of the program?

• 1

• 2

• 3

• 4

Answer explanation