AWS AWS Database and Analytics Services

Question 1

Which AWS database service is a fully managed, serverless, key-value NoSQL database designed for high-performance applications?

Accepted Answer

Amazon DynamoDB

Answer

Amazon DynamoDB is a fully managed, serverless, key-value and document NoSQL database that delivers single-digit millisecond performance at any scale.

Question 2

What is the maximum size of a single item in Amazon DynamoDB?

Accepted Answer

400 KB

Answer

A single item in DynamoDB can store up to 400 KB of data, including attribute names and values.

Question 3

Which Amazon RDS feature automatically creates a standby instance in a different Availability Zone for failover support?

Accepted Answer

Multi-AZ Deployment

Answer

Multi-AZ Deployment provisions a synchronous standby replica in a different AZ, enabling automatic failover in the event of a primary DB instance failure.

Question 4

Which AWS service is a petabyte-scale data warehouse solution optimized for complex analytics queries?

Accepted Answer

Amazon Redshift

Answer

Amazon Redshift is a fully managed, petabyte-scale data warehouse service that makes it simple to analyze data using standard SQL and existing BI tools.

Question 5

Which DynamoDB capacity mode automatically adjusts read and write throughput based on actual traffic patterns?

Accepted Answer

On-Demand Mode

Answer

DynamoDB On-Demand Mode automatically scales to accommodate workloads without requiring capacity planning, charging per request.

AWS Practice Test

AWS Practice Test

AWS AWS Database and Analytics Services