Computing

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Data validation

In this lesson, we will develop our understanding of data validation by applying data validation through iteration.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What will be the output when this program is executed?

1/3

Q2.When using the range() function. What is the first parameter used for? e.g. range(1, 11, 2)

2/3

Q3.When using the range() function. What is the second parameter used for? e.g. range(1, 11, 2)

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What will be the output when this program is executed?

1/3

Q2.When using the range() function. What is the first parameter used for? e.g. range(1, 11, 2)

2/3

Q3.When using the range() function. What is the second parameter used for? e.g. range(1, 11, 2)

3/3

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Data Validation

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If the following code was used as a validation check on, how many times could a user enter incorrect data before the program had a runtime error?

1/3

Q2.A user is asked to enter a number between 1 and 20. They enter 21. What type of validation error would this cause?

2/3

Q3.The following code is used as a validation check to ensure that a whole number is entered. On which line will the loop terminate?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Data Validation

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If the following code was used as a validation check on, how many times could a user enter incorrect data before the program had a runtime error?

1/3

Q2.A user is asked to enter a number between 1 and 20. They enter 21. What type of validation error would this cause?

2/3

Q3.The following code is used as a validation check to ensure that a whole number is entered. On which line will the loop terminate?

3/3

Lesson summary: Data validation

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The next lesson in:
Programming 3: Iteration
is:
Pseudocode

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