Online Access Free Lpi.030-100.v2025-01-30.q30 Practice Test (Page 6)

What is the purpose of web sockets in the context of HTTP?

A.To store large files on the server

B.To render graphical content in the browser

C.To enable real-time bidirectional communication between client and server

D.To increase the loading time of web pages

How do you execute an SQL query in a NodeJS application?

A.Using the execute() method of the database connection object

B.With the runQuery() function

C.By invoking the sql.execute() function

D.Using the query() method of the database connection object

What is the primary feature of a Single-Page Application (SPA)?

A.It dynamically updates the current page without reloading

B.It cannot integrate with APIs

C.It reloads the entire page for every user interaction

D.It is used only for mobile applications

Which of the following file formats supports transparency?

A.Both PNG and SVG

B.SVG

C.JPEG

D.PNG

What is the primary purpose of using EJS in an Express.js application?

A.To manage database connection

B.To handle HTTP POST requests

C.To serve static files efficiently

D.To allow server-side rendering of HTML with embedded JavaScript

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