Just a place to put
some notes on the “AWS Concepts” course from https://linuxacademy.com
1) A Conceptual Introduction to Amazon Web Services
(AWS)
1.1) AWS & the Cloud
1.1.1) Understanding AWS
Amazon Web Services is a Cloud services provider
(also known as ‘Infrastructure as a Service - IaaS).
Cloud Terminology #1: “High Availability” (your files are
always available across multiple devices)
Cloud Terminology #2: “Fault Tolerant” (if there are faults
in the system, you will still be able to access your files)
Cloud Terminology #3: “Scalability” (as user base grows,
you have the ability to quickly and easily add more servers; you can scale up
easily)
Cloud Terminology #4: “Elasticity” (you can grow, but you
can also shrink)
Image: AWS
Architecture
1.2) Introduction to Core AWS Services
1.2.1) Understanding VPCs
VPC = Virtual Private Cloud
“A Virtual Private Cloud is your
private section of AWS, where you can place AWS resources, and allow/restrict
access to them.”
1.2.2) Understanding EC2
Amazon EC2 (Computer Power)
EC2 = Elastic Computer Generation 2
Cloud Terminology #5: “Instance” (EC2 instance)
“Think of EC2 as a virtual computer that you can
use for whatever you like.”
1.2.3) Understanding RDS
Amazon RDS is
a database platform provided by AWS / RDS
is AWS provisioned database service.
Amazon RDS = Amazon Relational Database Service
1.2.4) Understanding S3
Amazon S3 is the storage platform of AWS.
AWS S3 is a
massive (unlimited) storage bucket.
Common use:
- Mass Storage
- Long-Term Storage
2) AWS Global Infrastructure
2.1) Understanding How AWS is Physically Set Up
Image: AWS Global
Infrastructure
Each region has a set of availability zones.
Each one of these availability zones contains a data center.
Each one of these availability zones is geographically
separated from the other.
Image: Availability
Zones
3) AWS Concepts Quiz
Q: What are some of the common features or services
offered by cloud services providers, such as AWS, iCloud and Dropbox?
A: Storage, Computing Power, Virtualization
T: Scalability is the ability to increase in size as
demand increases.
T: Elasticity is a term commonly used to describe the
ability to both grow AND shrink based on demand.
Q: What best describes AWS EC2?
A: A virtual computer used primarily for its processing
power.
T: AWS regions are groupings of AWS data centers and
availability zones that are spread out across the globe.
T: S3 is a storage service.
Q: What are the four primary benefits of using cloud
services?
A: High availability, fault tolerant, scalability and
elasticity.
Q: In very simple terms, what is the “cloud”?
A: A computer located somewhere else that you utilize in
some fashion.
T: AWS is a cloud services provider.
Q: What are common uses of AWS RDS?
A: Storage and access customer account information. Keep
a catalog of your company’s inventory.
T: A VPC can be described as your own “private section”
of AWS.
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