class 12

operational problems are not really bugs but are problems attached to something else in our program. These are bugs and should be dealt with in our code. they can always be avoided by changing some line(s) of code.

a programming paradigm in which the flow of the program is determined by events.

Worker processes provide the execution environment for all web sites and applications configured in IIS.

Essentially you can have multiple jobs for node to process and it can handle it with no significant burden. This makes it scalable.

putting global packages in a single place in the system exactly where it depends on your set up.

RESTful web services are light weight, highly scalable and maintainable and are very commonly used to create APIs for web-based applications.