EC2 Pricing Flashcards
A flexible pricing model offering significant savings over On-Demand pricing, in exchange for a commitment to a consistent amount of usage (in $/hour) for a 1 or 3-year term
Savings Plan
EC2 Reserved instance commitment term
1 or 3-year term
Pricing model ideal for short-term, irregular workloads that cannot be interrupted
On-Demand
This pricing allows you to pay for compute capacity by the hour or second with no long-term commitment
On-Demand
What are the main pricing models available for Amazon EC2
On-Demand
Reserved Instances
Spot Instances
Savings Plans
Dedicated Hosts
How much discount can Reserved Instances offer compared to On-Demand pricing
Up to 72% for long-term usage
Which pricing model is best for applications with steady-state usage
Reserved Instances or Savings Plans
3 capacity configurations you can set for auto scaling groups
Minimum
Desired
Maximum
A serverless compute engine for containers
Fargate
A service that lets you run code without needing to provision or manage servers
AWS Lambda
A single datacenter or group of datacenters
Availability Zone
A way to package your application’s code and dependencies into a single object
Containers
AWS regions installed in your own datacenter
Outposts
AWS service for serverless computing
Lambda
Amazon EC2 instance types
General Purpose
Compute Optimized
Memory Optimized
Accelerated Computing
Storage Optimized
Are security groups stateful or stateless
Stateful
EC2 instance level security is controlled by this
security groups
EC2 instance type for batch processing
Compute
EC2 standard reserved instance requirements
Instance type and size
Platform description (operating system)
Tenancy
EC2 instance type fully dedicated for your use
Dedicated Host
Edge locations can run this DNS service
Route 53
Geographically isolated areas
Regions
Network ACLS perform stateless or stateful packet filtering
stateless
Network ACLs control traffic going into and out of this
subnets
Security group default traffic permissions
Inbound denied
Outbound allowed
These two services facilitate application integration in a microservices approach
Amazon Simple Notification Service (Amazon SNS)
Amazon Simple Queue Service (Amazon SQS)
This device will allow public traffic to your VPC
Internet Gateway
This gateway will only allow traffic in from an approved network
Private gateway
This is a message queuing service where you can send, store, and receive messages between software components, without losing messages or requiring other services to be available
Amazon Simple Queue Service (Amazon SQS)
This is a publish/subscribe service
Amazon Simple Notification Service (Amazon SNS)
This pricing allows you to pay for compute capacity by the hour or second with no long-term commitment
On-Demand pricing
This service automatically distributes incoming application traffic across multiple resources, such as Amazon EC2 instances
Elastic Load Balancing
This service lets you to establish a dedicated private connection between your data center and a VPC
Direct connect
This type of location stores cached copies of your content closer to customers for faster delivery
Edge locations
Two types of EC2 auto scaling
Dynamic
Predictive
Two types of EC2 reserved instances
Standard Reserved Instances
Convertible Reserved Instances
What business factors should be considered when selecting a region
Compliance
Proximity
Available services
Pricing
What two services does Fargate work with
EKS(Amazon Elastic Kubernetes Service)
ECS(Elastic Container Service)
This provides temporary block-level storage for an Amazon EC2 instance
Instance store
If you stop or terminate an EC2 instance with this storage type, the data volume remains available
EBS(Elastic Block Store)
An EBS snapshot is this type of backup
Incremental
3 components of object storage
Data
Metadata
Key
This storage class stores data in a minimum of three Availability Zones and is designed for frequently access data
S3 Standard
This storage class stores data in a minimum of three Availability Zones and is designed for infrequently accessed data
S3 Standard-IA
This storage class stores data in a single availability zone and has a lower storage price than Amazon S3 Standard-IA
S3 One Zone-IA
This storage class stores is ideal for data with unknown or changing access patterns and requires a small monthly monitoring and automation fee per object
S3 Intelligent-Tiering
This storage class works well for archived data that requires immediate access
S3 Glacier Instant Retrieval
This storage class is a low-cost storage class that is ideal for data archiving. Retrieval can take from 1 minute to 12 hours.
S3 Glacier Flexible Retrieval
This storage class is the Lowest-cost object storage class ideal for archiving. Able to retrieve objects within 12 hours.
Glacier Deep Archive
This storage class delivers object storage to your on-premises AWS environment
S3 Outposts
This file storage service can have multiple instances reading and writing simultaneously
Elastic File System(EFS)
