In the password loop, which line lets it end?

• The line printing the final message
• The line setting the first flag value
• The line asking for a new entry inside the loop

A program must keep asking until the right password is typed. Which loop fits?

• A while loop on the entry matching
• A for loop over ten fixed tries
• No loop at all

If nothing inside the loop can change the condition, it runs forever.

Circle one:   True   False

Read sensor data until it reports ready. The wait length is unknown. Which fits?

• A for loop over a fixed range
• A single if statement
• A while loop on the ready signal

Print every name in a class list of known size. Which loop fits and why?

• For, since the list size is known
• While, since names are strings
• While, since lists always need conditions

A while loop counts down but never stops. What is the likely fault?

• The counter starts at zero
• The body never updates the counter
• The loop prints too much text

A student waits for a password with a for loop over a huge fixed range, hoping it is enough. Why is while better?

• While waits exactly as long as needed instead of guessing a cap
• For loops cannot check passwords
• While runs faster on each pass

n starts at 4. While n is above 0, the loop prints n then sets n to n minus 1. How many prints?

• 3
• 4
• 5