Exam 2 Study Guide #

AWS - Week 7 Slides #

• Know how to get your AWS CLI Credentials
• Know the difference between a region and and availability zone
• Know the XaaS basics
  • IaaS - Infrastructure as a Service
  • PaaS - Platform as a Service
  • SaaS - Software as a Service
• Know the basic AWS Services and what they're used for
  • EC2
  • RDS
• Shared Responsibility Model
  • What are you responsible for vs AWS?
• IAM Roles do what?
  • Define which actors can take which actions on which resources

EC2 and RDS - Week 8 Slides #

• What do you need to know or define when launching an EC2 instance?
  • AMI Image
  • Host OS
  • Architecture
  • Instance Type (ie t2.micro, m5.2xlarge)
  • Security Group
  • Storage
  • SSH Keypair
• What do Security Groups do?
  • Act like firewalls
  • Allow or Deny network traffic in and out of a resource
• Understand Stop vs Terminate
• Understand RDS basics
  • Database Type
  • Instance Type
  • Default Password
  • Storage
  • Security Group

JSON and REST - Week 9 Slides #

• Understand basic JSON format
• Be able to write some basic JSON
• JSON can't have comments 😢
• JSON is always valid JavaScript but JavaScript is not always valid JSON
• In JavaScript
  • JSON.stringify()
  • JSON.parse()
• REST stands for Representational State Transfer
• REST is not a protocol, it is an architectural style
• REST Principles
  • Client-Server Architecture
  • Uniform Interface
  • Statelessness
  • Layered System
  • Cacheability
  • Semantic HTTP Methods

Infrastructure as Code - Week 10 Slides #

• Infrastructure as Code
  • Text files
  • Automateable and repeatable processes
• Know these exist
  • aws-cli
  • CloudFormation
  • AWS SDK (Python boto3)
  • TerraForm
• Version Control Systems
  • git is the winner
  • GitHub ≠ git
• Basic git commands
  • git init
  • git add
  • git commit -m "log message"
  • git log