ICS For & While Loops

In programming, what is iteration?

• The repetition of steps within a program
• The order in which instructions are carried out
• A decision point in a program
• Testing a program to make sure it works

Why is iteration important?

• It determines the order in which instructions are carried out
• It allows code to be simplified by removing duplicated steps
• It allows multiple paths through a program
• It ensures the code works correctly

Which two statements are used to implement iteration?

• IF and WHILE
• ELSE and WHILE
• FOR and WHILE
• IF and ELSE

Which type of loop iterates until instructed otherwise?

• FOR loop
• A count-controlled loop
• Repeat-once loop
  
• WHILE loop

The condition for a while loop to continue could include which of the following?

• While something equals something
• While something is greater than something
• While something is True
• All of these

• 5
  4
  3
  2
  1
• 4
  3
  2
  1
  0
• 5  4  3  2  1
• 4  3  2  1  0

• 10  8  6  4  2
• 10
  8
  6
  4
  2
• 2  4  6  8  10
• 10  9  8  7  6  5  4  3  2  1

To repeat a fixed number of times use a

• while loop
• for loop
• if loop
• indentation

The character that must be at the end of the line for if, while, for etc.

• :
• ;
• .
• ,

In a Python program, what would be the iteration variable (looping variable) in the FOR LOOP code?

• n

• num

• value

• i