Full-Stack Development An Intro to Full-Stack Development 4

Question 1

What distinguishes a NoSQL database from a relational (SQL) database?

Accepted Answer

NoSQL databases store data in flexible schemas like documents, key-value pairs, or graphs instead of fixed tables

Answer

NoSQL databases use flexible data models (documents, key-value, column-family, graph) rather than rigid tabular schemas.

Question 2

In the context of JWT authentication, where should a JSON Web Token typically be stored on the client side?

Accepted Answer

In localStorage or an HttpOnly cookie, with HttpOnly cookies being more secure

Answer

JWTs can be stored in localStorage or cookies, but HttpOnly cookies protect against XSS attacks by preventing JS access.

Question 3

Which of the following best describes a 'microservices' architecture compared to a monolith?

Accepted Answer

Microservices decompose the application into small, independently deployable services

Answer

Microservices split an application into small services, each owning its own domain and deployable independently.

Question 4

What is the purpose of a 'package.json' file in a Node.js project?

Accepted Answer

It defines project metadata, scripts, and dependencies for the npm ecosystem

Answer

package.json records project name, version, npm scripts, and both runtime and development dependencies.

Question 5

What HTTP status code indicates that a resource was successfully created by a POST request?

Accepted Answer

201 Created

Answer

201 Created is the standard success response when a POST request results in a new resource being created.

Full-Stack Development Practice Test