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 RDS

Answer

Amazon Redshift

Answer

Amazon Aurora

Question 2

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

Accepted Answer

400 KB

Answer

1 MB

Answer

64 KB

Answer

16 MB

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

Read Replicas

Answer

Aurora Global Database

Answer

RDS Proxy

Question 4

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

Accepted Answer

Amazon Redshift

Answer

Amazon Athena

Answer

Amazon EMR

Answer

Amazon QuickSight

Question 5

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

Accepted Answer

On-Demand Mode

Answer

Provisioned Mode

Answer

Reserved Mode

Answer

Burst Mode

Question 6

What does Amazon ElastiCache provide for AWS applications?

Accepted Answer

In-memory caching to improve database performance

Answer

Persistent block storage

Answer

Managed graph database service

Answer

Automated database backups