AWS AWS Database Services 3

Question 1

Which Aurora feature allows the database to automatically start, stop, and scale capacity based on application demand?

Accepted Answer

Aurora Serverless

Answer

Aurora Serverless automatically scales compute capacity up and down based on load.

Question 2

How many copies of your data does Amazon Aurora maintain across Availability Zones?

Accepted Answer

Six copies across three AZs

Answer

Aurora stores six copies of data across three Availability Zones.

Question 3

Which DynamoDB feature provides a fully managed in-memory cache to reduce read latency to microseconds?

Accepted Answer

DAX

Answer

DynamoDB Accelerator (DAX) is an in-memory cache delivering microsecond read latency.

Question 4

What is the purpose of DynamoDB Global Tables?

Accepted Answer

Provide multi-region, multi-active replication

Answer

Global Tables replicate data across multiple regions with multi-active read/write support.

Question 5

Which RDS engine is NOT available as a managed option?

Accepted Answer

MongoDB

Answer

RDS supports MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server, but not MongoDB.

AWS Practice Test