Python 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

Which of the following symbols is used in Python to mean "Equal to"?

• =
• !=
• ==
• >=

Which of the following symbols is used in Python to mean "Not equal to"?

• ==
• !=
• <>
• ><

Which of the following symbols is used in Python to mean "Greater than or equal to"?

• <=
• >>
• >=
• =>

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

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