AWS Architecture Patterns

Question 1

I need to provide my web instances with an instance type of spot, on-demand, reserved. My web instances are in three availability zones and an autoscaling group, what is my best option?

Answer 1

Select spot, spot instances can get taken back by aAWSws, but as instances are in a scale group they will be replaced. Spot instances can be near half the price.

Question 2

When using autoscaling and web instances, what instances should I use?

Answer 2

Spot, they are the lowest cost and as they are in a scale group thye will be replaced.

Question 3

I am creating a mobile app for a celeb, we believe this will have huge usage and be very popular, what AWS components should I use and why?

Answer 3

Cognito: sign up and access control for mobile app
Dynamodb: for huge semi-structured data
S3: static content
CloudFront: large scale distribution of static content.

Question 4

When talking about RPO of 15min,, if a disaster occurred at 5 pm, what is acceptable data loss windows?

Answer 4

4.45 - 5pm

Question 5

I need to analyze clickstream data, what is my bets architecture?

Answer 5

Kinesis and a Kinesis worker.

Question 6

I have an on-prem datacentre connected to AWS via direct connect, I am using ISCSI storage array and ab beginning to run out of storage space and have to do something, what AWS options do I have?

Answer 6

You can use the Storage GW to create ISCSI volume storage.