AWS Databases

Question 1

Relational Database Service (RDS)

Answer 1

Fully managed service that makes it easy to launch and manage relational databases

• offers high availability and fault tolerance using Multi-AZ deployment option
• AWS manages the database with automatic software patching, automated backups, operating system maintenance and more
• launch read replicas across Regions in order to provide enhanced performance and durability

Question 2

RDS Aurora

Answer 2

Relational database compatible with MySQL and PostgreSQL that was created by AWS

• 5x faster than normal MySQL and 3x faster than normal PostgreSQL
• scales automatically while providing durability and high availability
• deploy replicas for read scaling within and across Regions
• automated backups

Question 3

DynamoDB

Answer 3

Fully managed NoSQL key-value and document database

• Serverless
• Schema less
• scales automatically to massive workloads with fast performance with no downtime

Question 4

DocumentDB

Answer 4

Fully managed document database that supports MongoDB

Question 5

ElastiCache

Answer 5

Fully managed in-memory datastore compatible with Redis or Memcached

• caches database queries
• provides sub-millisecond latency to power internet-scale real-time applications

Question 6

MemoryDB for Redis

Answer 6

In-memory database that delivers ultra fast performance

• stores entire data set in memory (database and cache)

Question 7

Neptune

Answer 7

Fully managed graph database that supports highly connected datasets

Question 8

DynamoDB Accelerator (DAX)

Answer 8

fully managed, highly available in-memory cache for DynamoDB that deliver up to 10x performance improvement of requests per second

• from milliseconds to microseconds

Question 9

Amazon RedShift

Answer 9

fast, fully managed data warehouse that makes it simple and cost-effective to analyze all your data using standard SQL and existing Business Intelligence (BI) tools

• SQL based data warehouse used for analytics applications