Node.js API Masterclass with Express and MongoDB - PM2 Process Manager Setup

The video tutorial covers the use of PM2, a process manager for Node.js applications, to ensure apps run continuously in the background. It explains how to create snapshots in Digital Ocean for backup, install PM2 globally, and manage processes using various PM2 commands. The tutorial also demonstrates setting up PM2 to auto-start applications on server reboot and viewing logs. Finally, it introduces configuring Nginx as a reverse proxy to manage server ports and enhance security.

What is the purpose of taking a snapshot in Digital Ocean before installing PM2?

• To enhance application security

• To increase server speed

• To save server costs

• To revert to a previous state if issues occur

Which command is used to install PM2 globally on a server?

• pm2 start

• pm2 install

• npm install -g pm2

• npm install pm2

How does PM2 help in managing a Node.js application?

• It automatically updates the application

• It provides a graphical user interface

• It compiles the application code

• It allows the application to run in the background and manage processes

Which command is used to check the status of an application running with PM2?

• pm2 check

• pm2 status

• pm2 monitor

• pm2 view

What command ensures that a Node.js app starts automatically on server reboot using PM2?

• pm2 auto-start

• pm2 start-on-boot

• pm2 startup

• pm2 boot

How can you view the logs of an application managed by PM2?

• pm2 view-logs

• pm2 logs

• pm2 show-logs

• pm2 display-logs

What is the role of Nginx in the context of this tutorial?

• To act as a reverse proxy forwarding requests to the application

• To compile Node.js code

• To provide a database service

• To manage server snapshots