| Horizontal Scaling | Adds extra servers |
| Vertical Scaling | Upgrading |
| Durability | Will my data be there tomorrow |
| Availability | Can I access my data when I need it |
| Virtual Private Gateway | VPN connector on AWS side |
| Customer Gateway | VPN connector on customer side |
| AMI | Amazon machine image |
| ETL | Extract Transfer Load |
| IaC | Infrastructure as Code |
| AWS Workspaces | host virtual desktops
virtual windows or linux |
| AWS Connect | build contact centre help desk service |
| Region | physical location
contains availability zones |
| Availability zone | contained in a region
contains one ore more data centres
more AZs than regions |
| Data Centre | contained in an Availability zone |
| Edge Location | cache content
low latency
data closer to users
used by CloudFront
more edge locations than availability zones |
| Workload | EC2 Instance
Lambda
Container |
| HSM | Hardware security module |
| Authentication | Identify who is accessing the system |
| Authorization | Evaluating what permissions a user has |
| AWS SDK | enables developers to build libraries and applications in various languages that use AWS services |
| IaaS | Infrastructure as a service
virtualised computing resources
example: AWS EC2, S3 |
| PaaS | Platform as a service
hardware and software infrastructure
example: AWS Beanstalk, RDS |
| SaaS | Software as a service
entire software application
example: AWS connect |
| Faas | Function as a service
build function without managing any infrastructure
example: AWS Lambda |
| Daas | Desktop as a service
cloud virtual desktop
example AWS Workspaces |
| NAT Gateway | Network Address Translation
belongs in your VPC
private subnet can connect to the internet |
| Six advantages of cloud computing | Trade fixed expense for variable expense
Benefit from economies of scale
Stop guessing capacity
Increase speed and agility
Stop spending money running data centres
Go global in minutes |
| Three cloud computing models | PaaS
IaaS
SaaS |
| Subnet | segment of a VPCs IP address range where you can place groups of isolated resources |
