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

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

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

2. 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 create multiple physical servers from a single hardware server
D) To host multiple domain names on a single server

3. 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

4. What is the fundamental difference between relational and non-relational (NoSQL) databases?

A) Relational databases are based on table structures, while non-relational databases are not
B) Non-relational databases are not capable of storing large amounts of data
C) Relational databases are only used in web development
D) Non-relational databases do not use SQL for querying

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

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

Solutions: