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Theory

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SQL injection vulnerabilities

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Beginner

Intermediate

Advanced

What is the primary purpose of SQL Injection?

a: To optimize database queries Explanation

Explanation

b: To retrieve data securely Explanation

Explanation

c: To manipulate databases through malicious input Explanation

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d: To test database performance Explanation

Explanation

Which payload can exploit an SQL Injection vulnerability?

a: ' OR 1=1 -- Explanation

Explanation

b: ' AND password='1234' -- Explanation

Explanation

c: ' UNION SELECT * FROM users; -- Explanation

Explanation

d: ' DROP TABLE users; -- Explanation

Explanation

What does the term 'parameterized query' mean?

a: A query that uses input validation Explanation

Explanation

b: A query that uses placeholders for input values Explanation

Explanation

c: A query that combines user input with SQL statements Explanation

Explanation

d: A query that retrieves all database records Explanation

Explanation

What is the purpose of the '--' in SQL Injection?

a: It represents the beginning of a comment in SQL Explanation

Explanation

b: It is used to separate multiple SQL commands Explanation

Explanation

c: It is an operator used to check equality Explanation

Explanation

d: It is used to specify input parameters Explanation

Explanation

How can prepared statements help prevent SQL Injection?

a: By executing queries with hardcoded values Explanation

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b: By separating SQL logic from user input Explanation

Explanation

c: By validating input before execution Explanation

Explanation

d: By automatically escaping special characters Explanation

Explanation

What is the risk of failing to sanitize user inputs?

a: It could lead to data corruption Explanation

Explanation

b: It might allow attackers to inject malicious code Explanation

Explanation

c: It can improve database performance Explanation

Explanation

d: It might increase data accuracy Explanation

Explanation

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