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

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

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

2. Which of the following are common web development technologies and standards? (Choose two)

A) JavaScript
B) HTML/CSS
C) Bluetooth communication
D) PCIe interface

3. In Express.js, how are EJS templates rendered?

A) res.send(templateName, data)
B) res.ejs(templateName, data)
C) res.template(templateName, data)
D) res.render(templateName, data)

4. How is a comment written in HTML?

A) <!-- comment -->
B) # comment
C) // comment
D) /* comment */

5. What are virtual hosts used for in web servers?

A) To distribute network traffic evenly across multiple servers
B) To increase the server's processing power
C) To host multiple domain names on a single server
D) To create multiple physical servers from a single hardware server

Solutions: