Modern Full-Stack Development

Child Processes – The child_process module provides the ability to 
spawn child processes outside of Node.
• 
Cluster – A single instance of Node runs in a single thread. To take 
advantage of multi-core systems, the user will sometimes want to 
launch a group of Node processes to handle the load. The cluster 
module allows easy creation of child processes that all share server 
ports.
• 
Console – The console module provides a simple debugging console 
that is like the JavaScript console mechanism provided by web 
browsers.
• 
Crypto – The crypto module provides cryptographic functionality 
that includes a set of wrappers for OpenSSL's hash, HMAC, cipher, 
decipher, sign, and verify functions.
Chapter 2   a Few More words: advanCed node and npM

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• 
DNS – The dns module contains functions belonging to two different 
categories: methods that use the underlying operating system 
facilities to perform name resolution and methods that connect to an 
actual DNS server to achieve name resolution.
• 
HTTP/2 – The http2 module provides an implementation of the 
HTTP/2 protocol. It’s just like http and https, but newer and better!
• 
Inspector – The inspector module provides an API for interacting 
with the V8 inspector.
• 
Net – The net module provides an asynchronous network API for 
creating stream-based TCP or IPC servers and clients.
•