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

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

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

2. Which HTTP status codes indicate success and client error? (Choose two)

A) 302
B) 500
C) 404
D) 200

3. What is the primary role of HTTPS and TLS in web communications?

A) To increase the speed of data transfer
B) To secure communications between client and server
C) To compress data to reduce bandwidth usage
D) To convert static content to dynamic content

4. Which of these are commonly used open source database management systems? (Choose two)

A) PostgreSQL
B) Microsoft SQL Server
C) MySQL
D) Oracle Database

5. What is source code in the context of software development?

A) The output produced after a program is executed
B) The original code written by a programmer in a high-level language
C) A compiled version of a program ready to be executed
D) A specialized language used only for web development

Solutions: