Module 4: Core database services

Question 1

What is amazon RDS?

Answer 1

IS a relational database service in AWS, in this service you don’t need to worry about configuring an EC2 instance because Amazon already does it for you, The data is stored in EBS volume and you can confgure backups of the data as snapshots.

Question 2

What kind of engines RDS support?

Answer 2

It supports MySQL, MariaDB, Oracle, PostgreSQL, Microsoft SQL Server, Amazon Aurora.

Question 3

What are instance RDS classes?

Answer 3

At the moment you choose a RDS you need to have in mind the capacity to ensure the availability and oerformance that your application needs.

• Standar class: It’s normal CPU and memory.
• Memory optimized: Offer bigger bandwidth and disk throughput
• Burstable: Are used in databse with minimal requirements, for example in test cases.

Question 4

What are the Storage Types of RDS?

Answer 4

• General Purpose SSD.
• Provisioned IOPS SSD.
• Magnetic

Question 5

What is DynamoDb?

Answer 5

Is a no relational database service it is automanaged so you don´t have to configure an EC2 instance.