AWS AWS Storage and Databases 2

Question 1

Which AWS service provides a fully managed, MySQL and PostgreSQL-compatible relational database with up to 5x the performance?

Accepted Answer

Amazon Aurora

Answer

Amazon Aurora is a MySQL and PostgreSQL-compatible relational database built for the cloud that delivers up to 5x the throughput of standard MySQL.

Question 2

What is the purpose of Amazon ElastiCache?

Accepted Answer

To deploy and run in-memory caching services like Redis and Memcached

Answer

Amazon ElastiCache is a managed in-memory caching service compatible with Redis and Memcached that improves application performance.

Question 3

Which AWS service is a fully managed data warehouse used for analytics on large datasets?

Accepted Answer

Amazon Redshift

Answer

Amazon Redshift is a fully managed, petabyte-scale data warehouse service optimized for complex analytical queries on large datasets.

Question 4

What does S3 versioning allow you to do?

Accepted Answer

Preserve, retrieve, and restore every version of every object stored in an S3 bucket

Answer

S3 versioning keeps multiple versions of an object in the same bucket, allowing recovery from accidental deletions or overwrites.

Question 5

Which AWS service provides a managed file system that can be shared across multiple EC2 instances simultaneously?

Accepted Answer

Amazon EFS

Answer

Amazon EFS (Elastic File System) is a managed NFS file system that can be mounted by multiple EC2 instances concurrently across Availability Zones.

AWS Practice Test