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

1. What distinguishes an application server from a web server?

A) An application server is responsible for handling database queries
B) An application server provides business logic for an application
C) An application server only serves static content
D) An application server can only handle HTTP requests

2. Which method is used in Express.js to define a route for HTTP GET requests?

A) app.route(path, callback)
B) app.get(path, callback)
C) app.post(path, callback)
D) app.http(path, callback)

3. What is a common way to protect against Cross-Site Scripting (XSS) in a Node.js application?

A) Disabling cookies
B) Sanitizing user input
C) Implementing HTTPS
D) Using prepared SQL statements

4. For embedding audio files in HTML, which of the following elements is appropriate?

A) <video>
B) <iframe>
C) <audio>
D) <img>

5. In programming, what is a library?

A) A protocol for transferring source code over the internet
B) A tool for version control
C) An IDE feature that helps in debugging code
D) A collection of precompiled routines that a program can use

Solutions: