Back-End Development An Intro to Full-Stack Development 3

Question 1

What is the main difference between SQL and NoSQL databases in full-stack development?

Accepted Answer

SQL uses structured schemas while NoSQL offers flexible, schema-less storage

Answer

SQL databases enforce a rigid table schema, while NoSQL databases like MongoDB allow flexible document structures.

Question 2

In full-stack development, what is 'server-side rendering' (SSR)?

Accepted Answer

The server generates the complete HTML for a page before sending it to the browser

Answer

SSR means the server builds the full HTML document and sends it to the browser, rather than relying on client-side JavaScript to render content.

Question 3

Which of the following best describes a microservices architecture?

Accepted Answer

An application split into small, independently deployable services

Answer

Microservices break an application into small services that communicate over APIs and can be deployed independently.

Question 4

What is the purpose of a load balancer in a full-stack deployment?

Accepted Answer

To distribute incoming traffic across multiple server instances

Answer

A load balancer routes requests across multiple servers to prevent any single instance from being overwhelmed.

Question 5

Which of the following is an example of a back-end framework?

Accepted Answer

Express.js

Answer

Express.js is a Node.js back-end framework; React, Vue, and Tailwind are front-end tools.

Back-End Development Practice Test