Exam Tips

Question 1

When to use RDS

Answer 1

When using:
Traditional relational data models
Existing apps require RDBMS
OLTP, ACID-compliant transactions

Question 2

When to use DynamoDB

Answer 2

When requiring:
High /I/O
Dynamic scaling

Question 3

When to use s3

Answer 3

When storing BLOBs

Question 4

When to use DB on EC2

Answer 4

Your database is not supported under RDS

You need complete control

Question 5

When to use Redshift

Answer 5

OLAP transactions

Question 6

Should you read the AWS white papers?

Answer 6

Probably… There are a lot though… But probably… I guess. I mean, I don’t want to read all of those, but I guess I probably should? That’s a lot of reading though…

Question 7

Links to some white papers and videos suggested by ACG

Answer 7

https: //d1.awsstatic.com/whitepapers/Multi_Tenant_SaaS_Storage_Strategies.pdf
https: //d0.awsstatic.com/whitepapers/performance-at-scale-with-amazon-elasticache.pdf
https: //www.youtube.com/watch?v=SUWqDOnXeDw
https: //www.youtube.com/watch?v=TJxC-B9Q9tQ
https: //www.youtube.com/watch?v=_YYBdsuUq2M
https: //www.youtube.com/watch?v=9wgaV70FeaM

Question 8

Which of the following data formats does Amazon Athena support?

Answer 8

Apache Parquet
JSON
Apache ORC