Blog-Post_Class 12

• What’s the difference between operational and programmer errors?

Operational errors are normally found within the system, while programmer errors are typically bugs inside a program.

• What is ‘event-driven’ programming?

A programming paradigm(a way to classify programming languages based on their features). This lets the program work in a way that is determined by the events, actions, sensor outputs etc.

• What are ‘worker processes’?

Worker processes normally handle the requests that are sent to the web server.

• Describe how Node.js can be made more scalable.

You could clone it multiple times and have each cloned instance handle part of the workload which is I believe called load balancing.

• Explain global installation of dependencies.

It places the module inside your Node.js path, so that it may be accessed from any project.

• Explain RESTful Web Service.

It is an architectural coding style that specifies constraints, such as the uniform interface, that if applied to a web service provide properties, such as performance, scalability, and modifiability, that enable services to work best on the Web.