Amazon EC2; General Purpose Instances (4) - ANSWER: application servers
gaming servers
backend servers for enterprise applications
small and medium databases
Amazon EC2; Compute Optimized - ANSWER: is ideal for compute-bound
applications that benefit from high-performance processors.
Amazon EC2; Memory Optimized - ANSWER: is designed to deliver fast performance
for workloads that process large datasets/databases in memory
Amazon EC2; Accelerated computing - ANSWER: use hardware accelerators, or
coprocessors, to perform some functions more efficiently than is possible in software
running on CPUs
Amazon EC2; Storage optimized - ANSWER: designed for workloads that require
high, sequential read and write access to large datasets on local storage
Amazon EC2 Pricing; On-Demand- (3 Definition points) - ANSWER: *ideal for short-
term, irregular workloads that cannot be interrupted.
*No upfront costs or minimum contracts apply.
*The instances run continuously until you stop them, and you pay for only the
compute time you use.
,if you know the EC2 instance type and size you need for your steady-state
applications and in which AWS Region you plan to run them.
*Convertible Reserved Instances
If you need to run your EC2 instances in different Availability Zones or different
instance types
Amazon EC2 Pricing; EC2 Instance Savings Plans (Contract and Savings %) - ANSWER:
* 1-year or 3-year term
* 72 percent compared to On-Demand rates.
Any usage up to the commitment is charged at the discounted Savings Plans rate
Any usage beyond the commitment is charged at regular On-Demand rates.
Amazon EC2 Pricing; Spot Instances - ANSWER: *workloads with flexible start and
end times, or that can withstand interruptions.
*use unused Amazon EC2 computing capacity and offer you cost savings at up to
90% off of On-Demand prices.
Amazon EC2 Auto Scaling Types (5) - ANSWER: desired capacity
predictive scaling
dynamic scaling
minimum capacity
maximum capacity
Amazon EC2 Auto Scaling Definition - ANSWER: enables you to automatically add or
remove Amazon EC2 instances in response to changing application demand.
Amazon EC2 Auto Scaling; dynamic - ANSWER: esponds to changing demand.
Amazon EC2 Auto Scaling; predictive - ANSWER: automatically schedules the right
number of Amazon EC2 instances based on predicted demand.
Amazon EC2 Auto Scaling; minimum - ANSWER: is the number of Amazon EC2
instances that launch immediately after you have created the Auto Scaling group.
Amazon EC2 Auto Scaling; desired - ANSWER: What is the ideal capacity to run the
application
Amazon EC2 Auto Scaling; maximum - ANSWER: The most instances you want to
scale up in case of demand.
Elastic Load Balancing - ANSWER: is the AWS service that automatically distributes
incoming application traffic across multiple resources, such as Amazon EC2
instances.
Elastic Load Balancing; load balancer - ANSWER: acts as a single point of contact for
all incoming web traffic to your Auto Scaling group.
, Amazon Simple Notification Service (Amazon SNS) - ANSWER: is a publish/subscribe
service. Using Amazon SNS topics, a publisher publishes messages to subscribers.
subscribers can be web servers, email addresses, AWS Lambda functions, or several
other options.
Amazon Simple Queue Service (Amazon SQS) - ANSWER: 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.
AWS Lambda - ANSWER: AWS service for serverless computing
is a service that lets you run code without needing to provision or manage servers.
You pay only for the compute time that you consume
Charges apply only when your code is running.
Amazon Elastic Container Service - ANSWER: container management system enables
you to run and scale containerized applications
Amazon Elastic Container Service; Containers - ANSWER: standard way to package
your application's code and dependencies into a single object.
Amazon Elastic Container Service; Docker - ANSWER: *software platform that
enables you to build, test, and deploy applications quickly.
*can use API calls to launch and stop Docker-enabled applications.
Amazon Elastic Kubernetes Service (EKS) - ANSWER: service that you can use to run
Kubernetes
Kubernetes - ANSWER: Open-source software that enables you to deploy and
manage containerized applications at scale.
AWS Fargate - ANSWER: *serverless compute engine for containers.
*manages your server infrastructure for you.
Runs Amazon ECS and Amazon EKS.
Regions - Def & How many AZ zones in each? - ANSWER: A named set of AWS
resources that's in the same geographical area. A Region comprises at least three
Availability Zones.
Regions 4 Business Factors - ANSWER: *Compliance with Data governance and legal
requirements
*Proximity to customers
*Available services within a Region
*Pricing
Availability Zone - ANSWER: is a single data center or a group of data centers within
a Region.
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