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

1. What is a primary key in an SQL database?

A) The highest value in a table
B) A unique identifier for each row in a table
C) A password to access the database
D) The main field used for joining tables

2. What is the primary use of an <iframe> in HTML?

A) Both To create a nested browsing context within an HTML page and To display a section of another webpage within the current page
B) To display a section of another webpage within the current page
C) To link to external JavaScript files
D) To create a nested browsing context within an HTML page

3. In CSS, what are media queries primarily used for?

A) To query and retrieve media files from the server
B) To add media content like video and audio
C) To create different styles for different media types and screen sizes
D) To automatically play media files on a webpage

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

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

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

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

Solutions: