Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the purpose of input validation?

πŸ’‘ Hint: Consider why you would want to restrict user inputs.

Question 2

Easy

Give an example of a character that should be escaped.

πŸ’‘ Hint: Think about how these characters are used in HTML.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of input validation?

  • Enhance user experience
  • Prevent malicious input
  • Improve performance

πŸ’‘ Hint: Think about its role in security.

Question 2

True or False: Escaping is only necessary for data presented in HTML.

  • True
  • False

πŸ’‘ Hint: Consider where else injection attacks could happen.

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Challenge Problems

Push your limits with challenges.

Question 1

You are developing a web application that allows users to submit their comments. Describe how you would implement both input validation and escaping to protect this feature.

πŸ’‘ Hint: Think about the types of data that a comment might include.

Question 2

Evaluate the security of a login form that only uses client-side validation and does not escape user inputs. What vulnerabilities might exist?

πŸ’‘ Hint: Consider vectors of attack that bypass browser security.

Challenge and get performance evaluation