AWS Cloud Practitioner Exam 2023 with 100% correct answers

Cloud Computing the practice of using a network of remote servers hosted on the internet to store, manage, and process data, rather than on a local server or personal computer Traditional Approach (On-premise) cloud computing You own the servers You hire the IT people You pay or rent the real-estate You take all of the risk Cloud Providers Someone else owns the servers Someone else hires the IT people Someone else pays or rents the real-estate You are responsible for configured cloud services and code, and someone else takes care of the rest 6 Advantages of Cloud Computing - Trade capital expense for variable expense - Benefit from massive economies of scale - Stop guessing capacity - Increase speed and agility - Stop spending money running and maintaining data centers - Go global in minutes Advantage: Trade capital expense for variable expense No upfront cost● Instead of paying for data centers and servers ■ Pay on-demand● Pay only when you consume computing resources advantage: Benefit from massive economies of scale Usage from hundreds of thousands of customers aggregated in the cloud ■ You are sharing the cost with other customers to save money advantage: Stop Guessing Capacity Eliminate guesswork about infrastructure capacity needs■ Instead of paying for idle or under-utilized servers, scale up and down to meet requirements advantage: Increase Speed and Agility Launch resources within a few clicks in minutes instead of days or weeks on site advantage: Stop spending money on running and maintaining data centers Focus on your own customers, rather than racking, stacking, and powering servers advantage: Go global in minutes Deploy your app in multiple regions around the world immediately Provide lower latency and a better experience for your customers at minimal cost Types of Cloud Computing SaaS, PaaS (Platform as a Service), IaaS (Infrastructure as a Service) SaaS a complete product that is run and managed by the service provider (Salesforce, Gmail, Office 365)■ You don't have to worry about how to the service is maintained, it just works and remains available PaaS (Platform as a Service) Removes the need to manage the underlying infrastructure and allows you to focus on deployment and managing your applications Don't worry about provisioning, configuring, or understanding the hardware or OS Heroku, AWS Elastic Beanstalk, Engines for Google IaaS (Infrastructure as a Service) the basic building blocks for cloud IT. Provides access to networking features, computers, and data storage space ■ Don't worry about IT staff, data centers, or hardware Cloud Computing Deployment Models Cloud, Hybrid, On-Premise Cloud Deployment Models fully utilizing cloud computing ○ Squarespace, Basecamp, Dropbox ○ Good for startups, SaaS offerings, new projects and companies