CLF-C02 Database Services 4

Question 1

Which AWS service is a fully managed Apache Cassandra-compatible database?

Accepted Answer

Amazon Keyspaces (for Apache Cassandra)

Answer

Amazon Keyspaces is a scalable, serverless, managed database service compatible with the Apache Cassandra query language (CQL).

Question 2

A company's DynamoDB table experiences throttling during traffic spikes. Which feature should they enable to handle unpredictable workloads automatically?

Accepted Answer

DynamoDB On-Demand Mode

Answer

DynamoDB On-Demand Mode automatically scales read and write capacity to handle any traffic volume without capacity planning.

Question 3

What does Amazon RDS handle automatically that would require manual effort on a self-managed database?

Accepted Answer

Patching the database software and taking backups

Answer

Amazon RDS automates routine tasks including hardware provisioning, database setup, patching, and backups.

Question 4

Which DynamoDB feature allows you to capture a time-ordered sequence of item-level changes in a table?

Accepted Answer

DynamoDB Streams

Answer

DynamoDB Streams captures a time-ordered sequence of changes to items in a table, enabling event-driven architectures.

Question 5

An e-commerce company needs its database to remain available across multiple AWS regions simultaneously for global users. Which service supports this?

Accepted Answer

Amazon DynamoDB Global Tables

Answer

DynamoDB Global Tables automatically replicate data across multiple AWS Regions, providing single-digit millisecond latency globally.

(CLF-C02) AWS Certified Cloud Practitioner Practice Test

(CLF-C02) AWS Certified Cloud Practitioner Practice Test

CLF-C02 Database Services 4