The correct answers are A, C, and E.
Node.js allows JavaScript to run outside the browser. That makes it useful for backend development, command-line tools, APIs, real-time applications, and server-side services.
A is correct because Node.js executes JavaScript on the server side.
A team that already knows:
HTML
CSS
JavaScript
can use JavaScript for backend development as well. This reduces the need to switch to a completely different backend language.
Example:
const http = require('http');
const server = http.createServer((req, res) => {
res.end('Hello from Node.js');
});
server.listen(3000);
This is server-side JavaScript.
C is correct because Node.js uses a non-blocking, event-driven model.
For API servers, this is valuable because Node.js can handle many I/O operations without blocking the entire process while waiting for tasks like:
database queries
file reads
network requests
API responses
Instead of waiting synchronously, Node.js can register callbacks, promises, or async functions and continue handling other work.
E is correct because Node.js commonly installs with npm, the Node Package Manager.
npm is used to install and manage third-party libraries, such as:
Express
Socket.IO
dotenv
Jest
Axios
This makes it easier to build backend applications using reusable packages.
Now review the incorrect answers:
B is incorrect because JavaScript is not primarily a static-analysis language by default. Node.js executes JavaScript at runtime. Static checking can be added with tools such as TypeScript, ESLint, or other analyzers, but that is not an inherent Node.js benefit.
D is incorrect because Node.js does not release one major version only every few years. Its release cycle is more frequent than that, so this is not an accurate benefit statement.
Therefore, the verified answers are A, C, and E.