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Free PDF Quiz 2025 Lpi - 030-100 - Linux Professional Institute Web Development Essentials Exam 030 Best Preparation Materials

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The Linux Professional Institute (LPI) 030-100 Exam is a certification exam that tests the knowledge and skills of professionals in the field of web development. 030-100 exam is an essential requirement for individuals who want to demonstrate their expertise in web development and advance their careers in the industry. 030-100 Exam is designed to assess the ability of candidates to develop web applications using basic technologies such as HTML, CSS, and JavaScript.

Lpi Linux Professional Institute Web Development Essentials Exam 030 Sample Questions (Q66-Q71):

NEW QUESTION # 66
Which of the following is a best practice to prevent SQL injection in NodeJS?

A. Storing database credentials in the code
B. Using regular expressions to sanitize input
C. Employing prepared statements or parameterized queries
D. Concatenating user inputs directly into SQL queries

Answer: C

NEW QUESTION # 67
When establishing a database connection in NodeJS, which module is commonly used for MySQL?

A. sqlconnect
B. mongodb
C. db-mysql
D. mysql

Answer: D

NEW QUESTION # 68
Which of the following are roles of web browsers? (Choose two)

A. Executing JavaScript code
B. Storing cookies for user authentication
C. Hosting web applications
D. Compiling high-level code into machine code

Answer: A,B

NEW QUESTION # 69
What is the primary difference between HTTP GET and POST methods?

A. GET requests can be bookmarked, while POST requests cannot.
B. GET is secure, while POST is not.
C. GET sends data in the header, while POST sends data in the request body.
D. GET is used to upload files, while POST is used to download files.

Answer: C

NEW QUESTION # 70
What is the primary role of the WHERE clause in an SQL query?

A. To limit the number of returned records
B. To define the conditions that must be met for rows to be included in the result set
C. To specify which table to select or delete data from
D. To join multiple tables

Answer: B

NEW QUESTION # 71
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