AWS CPI Study

Cloud Computing

Computing done remotely without on premise hardware

Pay as you go

A pricing model where users pay only for the resources they use.

On demand delivery

Resources are available as needed without long-term commitments.

Trade upfront expenses for variable expenses

Switching from fixed costs to costs that vary based on usage.

No need to spend money on running and maintaining data centers

Elimination of costs associated with physical infrastructure management.

Stop guessing capacity

Elimination of the need to estimate resource requirements in advance.

Benefit from massive economies of scale

Reduced costs due to large-scale operations.

Increased speed and agility

Faster deployment and scaling of resources.

Go global in minutes

Ability to deploy services in multiple regions quickly.

Amazon EC2

Virtual servers that allow for computations.

Multitenancy

Sharing underlying hardware between virtual machines.

Instance Types

Different configurations of virtual servers grouped under families.

General Purpose

Instance type with balanced resources.

Compute optimized

Instance type ideal for compute intensive tasks like gaming servers or scientific computations.

Memory optimized

Instance type ideal for high-performance databases and memory intensive tasks.

Accelerated computing

Utilizes hardware accelerators for tasks like FP number calculations and graphics processing.

Storage optimized

Instance type good for high performance on locally stored data.

On-Demand Pricing

Pay for running instances only.

Savings Plan

Low prices in exchange for consistent usage, with terms of 1 or 3 years.

Reserved Instances

Suited for predictable usage with a commitment to a 1-3 year term.

Spot Instances

Request spare EC2 computing with up to 90% discount, can be interrupted at any time.

Dedicated Hosts

Specifically for a host, nobody else can use that host.

Amazon EC2 Auto Scaling

Service to match demand with resources available.

Dynamic Scaling

Responds to changing demand.

Predictive Scaling

Automatically schedules the right number of EC2 instances based on predicted demand.

Elastic Load Balancing

Directing traffic to the right instance to ensure balance.

Amazon Simple Queue Service (SQS)

Send, store, and receive messages between software components.

Amazon Simple Notification Service (SNS)

Used to send out messages and notifications to end users.

AWS Lambda

Allows you to upload code to a lambda function and run it when triggered.

AWS Elastic Container Service (ECS)

Container orchestration tool designed to help run containerized applications at scale.

AWS Elastic Kubernetes Service (EKS)

Container orchestration tool similar to ECS but uses Kubernetes.

Amazon CloudFront

A service that helps deliver data, video, etc with low latency.

AWS Management Console

Browser-based interface for interacting with AWS services.

AWS CLI

Make API calls using the terminal.

AWS SDKs

Allows interaction with AWS through programming languages.

AWS CloudFormation

Infrastructure as code tool that builds resources based on templates.

Amazon Virtual Private Cloud (VPC)

Private network in AWS where services can be placed.

Amazon Route 53

Domain name service for AWS that translates website names into IP addresses.

Amazon Elastic Block Storage (EBS)

Virtual hard drives attached to EC2 instances that are persistent.

Amazon S3

Store and retrieve an unlimited amount of data in buckets.

Amazon RDS

Relational Database Service that supports multiple database engines.

Amazon DynamoDB

Serverless NoSQL database that is highly scalable and performant.

AWS Shared Responsibility Model

Customers are responsible for security in the cloud while AWS secures the cloud.

UDP Flood

To shut down apps ability to function by overwhelming the capacity.

SlowLoris Attack

Attacker pretends to have a slow connection and asks for complicated tasks over and over again to overwhelm the computer.

Elastic Load Balancer

Solution to mitigate SlowLoris Attack.

AWS Web Application Firewall (WAF)

Filters incoming traffic for the signatures of bad actors.

AWS Shield Standard

Automatically protects customers at no cost, detects malicious traffic in real time and automatically mitigates it.

AWS Shield Advanced

Paid service that provides detailed attack diagnostics and can stop sophisticated DDoS attacks.

Encryption at rest

Automatically applied to data that is just sitting there.

AWS Key Management Service (KMS)

For managing the encryption key for the encrypted data.

Secure Sockets Layer (SSL)

Used when client and servers communicate.

Amazon Inspector

Runs automated security assessment against your infrastructure.

Amazon GuardDuty

Analyzes continuous streams of meta data from account and traffic data.

Amazon CloudWatch

Allows monitoring of applications in real time and tracks metrics tied to resources.

Amazon CloudWatch Alarms

Can trigger actions if certain alarms or alerts go off.

CloudTrail Insights

Optional feature that automatically detects unusual API activities in your AWS account.

AWS Trusted Advisor

An automated advisor that evaluates resources under sectors like Cost Optimization, Performance, Security, Fault Tolerance, and Service Limits.

AWS Free Tier

Always Free services like Lambda which is free if there are under 1 million invocations per month.

AWS Pricing Calculator

Lets you explore and create estimates for the cost of use cases on AWS.

Consolidated Billing

A single company will have multiple accounts that can be billed together in one place when in an organization.

AWS Budgets

Allows you to set budgets based on usage or costs and can forecast future costs and send alerts.

AWS Cost Explorer

Console based service that can show and analyze how you are spending money and gives 12 months of historical data.

AWS Support Plans

Includes Basic Support, Developer Support, Business Support, and Enterprise Support with varying levels of service.

AWS Snowcone

Device that holds 14 TB of data, 2 CPUs, and 4GB of memory.

AWS Snowball Edge

Compute Optimized Option with 80-TB usable HDD and 28 TB of NVMe SSD, 104 vCPUs, and 416 GiB of memory.

AWS Snowmobile

Houses 100 PB and is a huge device that has fire resistance and tamper resistance.

Machine Learning

Pretrained models to new models including services like SageMaker and Amazon Lex.

Internet of Things

Includes services like AWS Ground Station and Amazon Q Developer.

Six Pillars of Well-Architected Framework

Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization, Sustainability.