Question: What is input validation, and how does it help prevent SQL Injection?

Answer:

Input validation is the process of checking and sanitizing user inputs to ensure they meet expected criteria, helping prevent SQL Injection attacks by blocking malicious input.

MCQ: What is input validation, and how does it help prevent SQL Injection?

A. Input validation is the process of encrypting user inputs to prevent attacks.
B. Input validation is the process of checking and sanitizing user inputs to ensure they meet expected criteria, preventing SQL Injection attacks.
C. Input validation is the process of hiding user inputs to confuse attackers.
D. Input validation is not relevant to preventing SQL Injection attacks.

Correct Answer: A. Input validation is the process of encrypting user inputs to prevent attacks.

Explanation:

Input validation is the process of checking and sanitizing user inputs to ensure they meet expected criteria, helping prevent SQL Injection attacks by blocking malicious input.