Caching

Question 1

Services to return a custom error page

Answer 1

Cloudfront + s3

Question 2

Services compatible with cloudfront ? (4)

Answer 2

Shield, S3, ELB, EC2

Question 3

what cloudront is used for ? (2)

Answer 3

used for caching content closer to users
caching static web application content (can be used for upload : recommend to use CloudFront for upload/download file < 1Gb in size)

Question 4

Usage of Storage Gateway Cached Volumes

Answer 4

store your data in S3 and retain a copy of frequently accessed data subsets locally

Question 5

Usage of ElastiCache ?

Answer 5

caching database content not S3 content (in-memory database)

Question 6

What could be used to build a fast session store for online application with real time data and high availability ?

Answer 6

Elasticache for redis

Question 7

Elasticache Memcached ?

Answer 7

1. Multi thread
2. no data replication
3. no high availability