AWS Solutions Architect Certification

   Colin Kang

Before we start : What we learn from AWS

•    Architecture

•    Service Design

•    Service Pros/Cons

•    Terminology

•    Invisible Hardware

•    Software/hardware integration

•    Trade off

•    Design Thinking

AWS Benefits

•    Easy to Use : What is mean by easy? API ? CLI ? SDK? Console?

•    Design Principle : Consistency, Reasonable

•    SRP : Single Responsibility Principle : GSSD : Gather for Same, Separate for Different

•    Flexible : Composite, Loose Coupled, various work-around

•    Cost-Effective : On-Demand/Option

•    Reliable : Availability/Backup/Recovery/Managed

•    Scalable and high-performance : Autoscale

•    Secure : enterprise-level proof : Network

https://en.wikipedia.org/wiki/Single-responsibility_principle

Scalability

•    Scale Up/Down : Vertical Limit

•    Scale Out/In : Horizental Expansion • CAP theorem : Consistency/Availability/Partition Tolerence

•    Shared Everything

•    Expensive, High Performance

•    Clusterware

•    Shared Nothing

•    Easy to implement, hard to shard

https://en.wikipedia.org/wiki/CAP_theorem

https://www.geeksforgeeks.org/difference-between-shared-nothing-architecture-and-shared-disk-architecture/

Virtualization

•     Emulation/Simulation

•     Emulator : Game

•     Flight Simulator

•     Emulation/Virtualization

•     Virtual Memory

•     Java Virtual Machine : Emulator : Interpreter

•     Virtual Hardware : Virtual Machine : Image

•     Bare Metal/Hypervisor/Hosting

•     Hypervisor

•     Virtual Machine Supervisor

•     KVM/Xen/MS Hyper-V

•     Full Virtualization / Para-virtualization • Container : Later

https://www.baeldung.com/cs/simulation-vs-emulation

https://velog.io/@skynet/가상화-입문-에뮬레이션-가상머신-컨테이너

Disruptive Technology

•    Human cost > Hardware cost

•    More cost effective than optimization

•    Speed > Cost

•    Winner takes it all

•    Immutable

•    Shared Nothing Win

Cloud Computing

• IaaS, Paas, Saas     

• Public, Hybrid, On-premises(private, IDC)

 SHAPE  \* MERGEFORMAT

https://www.redhat.com/en/topics/cloud-computing/iaas-vs-paas-vs-saas

https://www.researchgate.net/figure/Comparison-among-Public-Private-Hybrid-and-Community-Cloud_tbl1_270958592

Security

•    Network Isolation

•    VPC

•    NAT

•    Whitelist model

•    VPN

•    AAA/IDM/IAM

•    Role/Priviliges

•    Security Group

•    AWS Organizations

AWS Services

https://colinkang.tistory.com/89

AWS Region / Service Type

•     Global/Region/AZ/VPC

•     Total Region :  29 ( 2023 Jan)

•     Seoul Region (launched 2016) : 4 AZ

https://aws.amazon.com/ko/blogs/korea/now-open-fourth-availability-zone-in-the-aws-asia-pacific-seoul-region/ https://aws.amazon.com/about-aws/global-infrastructure/regions_az/

Service Endpoint

•     the URL of the entry point for an AWS web service

•     Regional Endpoint • protocol://service-code.region-code.amazonaws.com

•     Dynamo US West Region Service Endpoint • https://dynamodb.us-west-2.amazonaws.com

•     Single Global Endpoint • organizations.us-east-1.amazonaws.com

•     FIPS endpoint

•     US Federal Information Standard : eg, encryption

•     https://appstream2-fips.us-west-2.amazonaws.com

•     Dual stack endpoint • HTTP / HTTPS

https://docs.aws.amazon.com/general/latest/gr/rande.html

ARNs

•     Amazon Resource Names

•     Use API/CLI/SDK call

•     Format

•     arn:partition:service:region:account-id:resource-type/resource-id

•     arn:partition:service:region:account-id:resource-type:resource-id

•     Example

•     arn:aws:s3:::bucket_name/key_name

•     arn:aws:s3:::examplebucket/developers/design_info.doc

•     arn:aws:s3:::examplebucket/*

•     arn:aws:s3:::*

•     arn:aws:s3:::example?bucket/*

https://docs.aws.amazon.com/ko_kr/general/latest/gr/aws-arns-and-namespaces.html https://colinkang.tistory.com/93

CLI

•    Command Line Interface

•    Example

•    aws s3 cp /tmp/sample.txt s3://mybucket

•   

aws help • aws shell

https://docs.aws.amazon.com/ko_kr/general/latest/gr/aws-arns-and-namespaces.html https://colinkang.tistory.com/93