Basics Flashcards
Edge location
Datacenter owned by a trusted partner of AWS
What do edge locations serve requests for?
CloudFront and Route53. Requests going to either of these services will be routed to the nearest edge location automatically
S3 Transer Acceleration traffic and API Gateway traffic also use Edge Network
DNS
Domain Name System (DNS) turns domain names into IP addresses
CloudFront
Amazon CloudFront is a web service that speeds up the distribution of your static and dynamic web content, such as .html, .css, .js, and image files, to your users. CloudFront delivers your content through a worldwide network of data centers called edge locations.
CDN
Content distribution network
RDS
Relational Database Service. Service that makes it easy to set up, operate, and scale a relational database in the cloud.
What databases does RDS support?
Amazon Aurora
MySQL
MariaDB
PostgreSQL
Oracle
Microsoft SQL Server
AWS Lambda
A compute service that lets you run code without provisioning or managing servers. Lambda runs your code on a high-availability compute infrastructure and performs all of the administration of the compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code monitoring, and logging.
What are the 4 ways to pay for EC2?
On-Demand
Spot
Reserved
Dedicated
What is On-Demand in the EC2 pricing model?
Least Commitment
default for EC2 instance
low cost and flexible
only pay per hour or minute based on EC2 instance type
no up-front cost & no long term commitment
short-term, spiky, unpredictable workloads
cannot be interrupted
For first-time apps
What is Spot in the EC2 pricing model?
Biggest Savings
request spare computing capacity
flexible start and end times
can handle interruptions (server randomly stopping and starting)
for non-critical background jobs
What is Reserved Instance in the EC2 pricing model?
Best Long-Term
steady-state or predictable usage or require reserved capacity
commit to EC2 over a 1-3 year term (longer terms = more savings)
can resell unused reserved instances
What is Dedicated in the EC2 pricing model?
Most Expensive
dedicated servers
can be on-demand or reserved (up to 70% off)
when you need a guarantee of isolate hardware (enterprise requirements)
Can RIs be shared?
Reserved Instances (RI) can be shared between multiple accounts within an org.
What AWS services are free?
IAM - Identity Access Management
Amazon VPC
Auto Scaling
Cloud Formation
Elastic Beanstalk
Opsworks
Amplify
AppSync
CodeStar
Organizations and Consolidated Billing
AWS Cost Explorer