ECS section

Question 1

Docker

Answer 1

for deploy app: What is the name of the software development platform that allows you to run applications the same way, regardless of where they are run

Question 2

Where image are stored

Answer 2

• docker images are stores in docker repositories
• public Docker Hub
• Private: Amazon ECR ( Elastic container registry

Question 3

ECS: Elastic container service

Answer 3

AWS service allows you to launch Docker containers on AWS, but requires you to provision and maintain the infrastructure

Question 4

Fargate

Answer 4

• You would like a serverless service to launch Docker containers with no infrastructure to provision.
• Where should you store your private Docker images
• Do not need ec2
• severless

Question 5

ECR: Elastic container registry

Answer 5

• You store your docker images

- Private docker registry on aws

Question 6

Severless

Answer 6

• you don’t manage/provision/ see them server ,deploy function as service
• Initially serverless == FaaS (function as a service)

- Serveless service 
Amazon s3 
DynamoDB 
Fargate 
Lambda

Question 7

Lambda

Answer 7

virtual function: It is a computing service that runs code in response to events and automatically manages the computing resources required by that code.

• serverless server in the cloud
• Event drive:happens when needed
• create serverless apl
• short executions: invocation time 15 min
• run on-demand, charged by per call and per duration
• scaling is automated
  Benefits:
• Easy pricing: invocation by number, and the time * by the RAM provisioned
• Pay per request and compute time
• Free tier 1million Aws lambda request and 400 thousand gbs of computing time

Question 8

Use case Lamnda

Answer 8

• serverless thumbnail creation
• serverless Cron Job
• support: code language

Question 9

AWS Batch

Answer 9

A company needs to run thousands of jobs but would like to NOT manage the compute resources.

• Fully managed batch processing at any scales
• Batch will dynamically launch EC2 instance or spot instance
• Batch jobs are defined as docker images and run on ECS

Question 10

Amazon API gateway

Answer 10

to create Serverless api (Which AWS serverless service can be used by developers to create APIs)
Example: building a serverless API

Question 11

Batch vs lambda

Answer 11

batch:

• No time limit
• any runtime as long as its package as a docker image
• rely on EBS/ instance store for disk space
• relies on ec2, can be manage by aws

Lambda:

• time limit
• limited runtime
• limited temporary disk space
• serveless

Question 12

Amazon Lightsail

Answer 12

A complete cloud beginner would like to create a simple application with predictable pricing.)

• with little cloud experience, low and predictable pricing, get started quickly, no configuration
• alway wrong answer