Full-Stack Development Technology & Digital Applications 2

Question 1

Which HTTP status code should a REST API return when a client successfully creates a new resource?

Accepted Answer

201 Created

Answer

201 Created is the correct status when a POST request successfully creates a new resource, and the response typically includes the new resource's URI.

Question 2

In a progressive web app (PWA), which technology enables offline functionality by intercepting network requests?

Accepted Answer

Service Workers

Answer

Service Workers act as a proxy between the browser and network, caching responses and serving them when the network is unavailable.

Question 3

What is the primary purpose of a Content Delivery Network (CDN) in web applications?

Accepted Answer

To serve static assets from geographically distributed edge servers

Answer

CDNs cache and serve static assets from edge servers close to users, reducing latency and offloading origin server traffic.

Question 4

Which design pattern separates an application into three interconnected components: model, view, and controller?

Accepted Answer

MVC

Answer

MVC (Model-View-Controller) divides application logic so that each component has a distinct responsibility, improving maintainability.

Question 5

What does CORS stand for, and what problem does it solve?

Accepted Answer

Cross-Origin Resource Sharing — allows controlled cross-domain HTTP requests

Answer

CORS is a browser security mechanism that lets servers declare which origins may access their resources via HTTP headers.

Full-Stack Development Practice Test

Full-Stack Development Practice Test

Full-Stack Development Technology & Digital Applications 2