reading-notes

AWS: S3 and Lambda

AWS S3

1. What is Amazon S3?

Amazon S3 is a file management service for AWS.

2. Name some use cases for Amazon S3.

• Back up and restore critical data

• Run cloud-native applications

3. Name some benefits of using Amazon S3.

• High scalability
• Low-latency data storage and retrieval

AWS Lambda Basics

1. What is AWS Lambda?

AWS is a ‘serverless computing service’. It allows users to to create self-contained functions and execute them.

2. Name some use cases for AWS Lambdas.

• Scalable APIs
• Data Processing

3. Describe “serverless” to a non-technical friend.

Serverless means that we don’t have to do the work to maintain the servers. Just like how we don’t have to worry about changing oil and tires on a rental vehicle.

CDN

1. What is a CDN?

A group of servers that are geographically spread out, to provide fast internet content to users around the world.

2. How does a CDN work with relation to the website visitor?

CDN works for routing a website visitor to the server that’ll provide them with the smoothest experience. That server has a cache of content that the user is trying to access.

3. What are the benefits of employing a CDN?

• Faster/smoother user experience
• Protection from DDoS attacks

Things I Want To Know More About

• How would using CDNs help us at our level?

Class Notes

• S3
  • Buckets are created by EB, itself
  • S3 is like a Repo on github
  • each ‘bucket’ is like a ‘folder’ to store files
  • this is less like ‘data storage’ and more like a ‘file system’ like windows explorer and finder
    • or like github
  • creating a bucket:
    • name bucket (name must be GLOBALLY unique)
• Lambda functions
  • ‘stateless micro-servers’ - functions that run in the cloud in response to some ‘event’
  • performing a smaller ‘step’ for larger applications
  • ‘stateless’, because they don’t store information
    • any variables created during the runtime will be gone after it’s done
  • use the same ‘architecture’ as your local machine

Previous Reading

Next Reading

This site is open source. Improve this page.