Web Development with Node.JS and MongoDB (Video 41)

This video tutorial covers the creation and benefits of using Node.js clusters. It explains how clusters can improve application performance by utilizing multiple CPU cores. The tutorial provides a step-by-step guide on setting up a Node.js cluster, managing worker processes, and benchmarking application performance. It also discusses various ways to enhance the development workflow, such as using monitoring tools, CDNs, and CI/CD services. The course concludes with a summary of key concepts learned, encouraging viewers to apply their knowledge in real-world applications.

Why is it beneficial to use a Node.js cluster?

• To reduce memory usage

• To enhance security features

• To utilize multiple CPU cores for better performance

• To simplify code structure

What is the role of the master process in a Node.js cluster?

• To serve static files

• To create and manage worker processes

• To handle database connections

• To execute all tasks

How does the cluster module ensure that there are always active workers?

• By automatically restarting the server

• By reducing the workload

• By creating new workers when one dies

• By using a backup server

What tool is used to benchmark the application in the video?

• Gatling

• JMeter

• Apache Bench

• LoadRunner

What happens when a worker process is killed in a clustered application?

• The workload is redistributed

• The server restarts

• A new worker is created

• The application crashes

Which of the following is a method to improve application development workflow?

• Avoiding version control systems

• Reducing the number of developers

• Adding monitoring for application statistics

• Using a single-threaded server

What is one benefit of using a Content Delivery Network (CDN)?

• Complicates deployment

• Increases server load

• Delivers assets faster

• Reduces application security