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Lpi Linux Professional Institute Web Development Essentials Exam 030 Sample Questions:

1. What is the primary purpose of an API in web development?

A) To enable communication between different software components
B) To increase the processing speed of the application
C) To provide a graphical interface for users
D) To encrypt data transmissions

2. What is the primary role of the WHERE clause in an SQL query?

A) To specify which table to select or delete data from
B) To limit the number of returned records
C) To define the conditions that must be met for rows to be included in the result set
D) To join multiple tables

3. Which of the following is a best practice to prevent SQL injection in NodeJS?

A) Using regular expressions to sanitize input
B) Concatenating user inputs directly into SQL queries
C) Storing database credentials in the code
D) Employing prepared statements or parameterized queries

4. Which CSS property is used to set the width of an element's border?

A) border-radius
B) border-length
C) border-style
D) border-width

5. What is the default method used by HTML forms to send data?

A) POST
B) DELETE
C) PUT
D) GET

Solutions: