Mastering MEAN Web Development Expert Full Stack JavaScript (Video 34)

This video tutorial covers the essentials of setting up a MongoDB and Node.js server, focusing on redundancy and scalability. It guides viewers through deploying a Node.js application on Heroku, including setting up an account, configuring environment variables, and using the Heroku Tool Belt for deployment and management. The video emphasizes the importance of scalability and provides a step-by-step process for deploying and managing applications on Heroku. It concludes with a brief introduction to the next video, which will focus on building and deploying a static frontend using AngularJS.

Why is redundancy important in a MongoDB environment?

• To ensure data availability and reliability

• To simplify database queries

• To improve database speed

• To reduce storage costs

What is a key requirement for a Node.js web API?

• It must be written in Python

• It requires a dedicated database server

• It should run on a local server only

• It must be accessible via HTTPS

Which of the following is NOT a hosting option for Node.js servers?

• Google Docs

• Microsoft Azure

• Heroku

• Amazon EC2

What is the first step in deploying a Node.js backend to Heroku?

• Configuring environment variables

• Setting up a Heroku account

• Creating a Procfile

• Installing the Heroku Tool Belt

What is the purpose of a Procfile in Heroku?

• To configure database connections

• To store application logs

• To define how the app is run

• To manage user accounts

How can you view the logs of your Heroku app?

• By accessing the Heroku dashboard

• Using the command 'heroku logs'

• By checking the app's URL

• Through the 'heroku view' command

What command is used to scale the number of web API instances in Heroku?

• heroku add web=2

• heroku increase web=2

• heroku ps:scale web=2

• heroku scale web=2