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

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

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

2. Which of the following are true about compilers and interpreters? (Choose two)

A) Compilers are used to enhance the security of a source code.
B) Interpreters translate the entire program at once and then execute it.
C) Compilers convert source code into machine code before runtime.
D) Interpreters execute the source code line by line during runtime.

3. In Node.js, what is the main advantage of using asynchronous operations?

A) They automatically optimize memory usage.
B) They make code execution faster.
C) They enforce strong typing in JavaScript.
D) They allow the Node.js server to handle multiple requests simultaneously.

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

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

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

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

Solutions: