TBC

Authentication and Authorization are two distinct concepts but has same purposes which is to give access permits to user. Authorization focus on the credentials verification while authorization focusing on giving access permits based on the assigned role.

Hello world is a console printed output that written by software engineer to test if small piece or part of code working proeprly. Whether it is a for loop, conditional formatiing, conditional assessment (if-else), "hello world" come in handy as quick debugger tools and give morale boost to the software engineer if the "hello world" text actually got printed out on the console.

Jekyll is one of the ruby framework who is fully supported by vercel. It has native integration with github for the automatic deploymnet. Moreoever, vercel CDN cover more than 120+ coutries all over the world which can boost the jekyll based app access latency.

Manufacturing process involve the usage of casting mold to ensure all the product from different production batch has same quality and specifications to cut the production time and maintain the quality. Same goes with software engineering, boilerplate is used to ensure all developer across the team has same system architectural foundation and can focus on writting the business logic.

Data defintion language or also known as DDL, is a SQL based script which responsible for determining the entire database schema model including table definition, table attribute until configuring the referential integrity.

Dataframe can be offloaded into different spark worker which can process huge amount of data. Spark master will act as the central resource manager to orchestrate the computation while spark worker is the job executors.