030-100 Practice Test Questions Answers Updated 85 Questions
030-100 dumps & Web Development Essentials Sure Practice with 85 Questions
The LPI 030-100 exam covers various topics such as HTML, CSS, JavaScript, PHP, and MySQL. A thorough understanding of these technologies is essential for any web developer looking to build advanced web applications. 030-100 exam also tests the candidate’s skills in building and deploying web pages, maintaining web content, web security, and web optimization.
NEW QUESTION # 17
Which HTML input type is used for a multi-line text input field?
- A. textarea
- B. email
- C. text
- D. password
Answer: A
NEW QUESTION # 18
In HTML, what is the purpose of the alt attribute in an <img> tag?
- A. To provide a text alternative for the image
- B. To specify a secondary image
- C. To change the image source
- D. To apply styles to the image
Answer: A
NEW QUESTION # 19
What is the default method used by HTML forms to send data?
- A. POST
- B. PUT
- C. DELETE
- D. GET
Answer: D
NEW QUESTION # 20
Which HTTP status codes indicate success and client error? (Choose two)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A,C
NEW QUESTION # 21
Which CSS property is used to control the visibility of an element?
- A. opacity
- B. visibility
- C. display
- D. view
Answer: B,C
NEW QUESTION # 22
What is the primary use of the Node Package Manager (NPM)?
- A. To update the Node.js engine
- B. To create new Node.js modules from scratch
- C. To manage packages and dependencies in a Node.js project
- D. To compile Node.js applications
Answer: C
NEW QUESTION # 23
What is the primary purpose of using EJS in an Express.js application?
- A. To handle HTTP POST requests
- B. To allow server-side rendering of HTML with embedded JavaScript
- C. To serve static files efficiently
- D. To manage database connection
Answer: B
NEW QUESTION # 24
Which of the following is a best practice to prevent SQL injection in NodeJS?
- A. Employing prepared statements or parameterized queries
- B. Concatenating user inputs directly into SQL queries
- C. Storing database credentials in the code
- D. Using regular expressions to sanitize input
Answer: A
NEW QUESTION # 25
How can CSS be embedded within an HTML document?
- A. Using the <css> tag in the HTML body
- B. Directly within HTML elements using the style attribute
- C. Inside the <script> tag
- D. Within the <style> tag in the head section
Answer: B,D
NEW QUESTION # 26
When establishing a database connection in NodeJS, which module is commonly used for MySQL?
- A. mysql
- B. mongodb
- C. db-mysql
- D. sqlconnect
Answer: A
NEW QUESTION # 27
What is the main purpose of WebAssembly in the context of web application development?
- A. To handle email services in web applications
- B. To increase the execution speed of client-side scripts
- C. To create complex SQL queries
- D. To manage server-side databases
Answer: B
NEW QUESTION # 28
In SQL, which command is used to add new data to a table?
- A. UPDATE
- B. INSERT INTO
- C. ADD NEW
- D. CREATE
Answer: B
NEW QUESTION # 29
Which units are commonly used in CSS for responsive design? (Choose two)
- A. Relative units (em, rem, vw, vh)
- B. Kilograms (kg)
- C. Centimeters (cm)
- D. Pixels (px)
Answer: A,D
NEW QUESTION # 30
Which are commonly used HTTP servers? (Choose two)
- A. Adobe Photoshop
- B. Microsoft Excel
- C. Nginx
- D. Apache HTTP Server
Answer: C,D
NEW QUESTION # 31
In Node.js, what is the main advantage of using asynchronous operations?
- A. They automatically optimize memory usage.
- B. They allow the Node.js server to handle multiple requests simultaneously.
- C. They make code execution faster.
- D. They enforce strong typing in JavaScript.
Answer: B
NEW QUESTION # 32
Which of these are commonly used open source database management systems? (Choose two)
- A. Oracle Database
- B. Microsoft SQL Server
- C. PostgreSQL
- D. MySQL
Answer: C,D
NEW QUESTION # 33
Which of the following are true about compilers and interpreters? (Choose two)
- A. Interpreters execute the source code line by line during runtime.
- B. Compilers convert source code into machine code before runtime.
- C. Compilers are used to enhance the security of a source code.
- D. Interpreters translate the entire program at once and then execute it.
Answer: A,B
NEW QUESTION # 34
Which CSS property is used to set the width of an element's border?
- A. border-style
- B. border-length
- C. border-width
- D. border-radius
Answer: C
NEW QUESTION # 35
What is session hijacking in the context of web sessions?
- A. The use of cookies to store session data
- B. The process of legally transferring a session from one user to another
- C. A method to increase session security
- D. A type of cyberattack where the attacker takes over a user's session
Answer: D
NEW QUESTION # 36
Which property is used in CSS to change the font of an element?
- A. font-family
- B. text-style
- C. font-style
- D. font-weight
Answer: A
NEW QUESTION # 37
In Express.js, how are EJS templates rendered?
- A. res.ejs(templateName, data)
- B. res.template(templateName, data)
- C. res.send(templateName, data)
- D. res.render(templateName, data)
Answer: D
NEW QUESTION # 38
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