AWS AWS Database and Analytics Services 2

Question 1

Which Amazon Aurora feature allows you to serve read traffic from up to 15 low-latency read replicas?

Accepted Answer

Aurora Replicas

Answer

Aurora Replicas share the same underlying storage as the primary instance and support up to 15 replicas with millisecond replica lag for read scaling.

Question 2

Which AWS analytics service allows you to run SQL queries directly on data stored in Amazon S3 without loading it into a database?

Accepted Answer

Amazon Athena

Answer

Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL without managing any infrastructure.

Question 3

What is the purpose of AWS Database Migration Service (DMS)?

Accepted Answer

To migrate databases to AWS with minimal downtime

Answer

AWS DMS helps migrate databases to AWS quickly and securely, keeping the source database fully operational during migration to minimize downtime.

Question 4

Which AWS service is used to process large amounts of data using Apache Hadoop and Spark frameworks?

Accepted Answer

Amazon EMR

Answer

Amazon EMR (Elastic MapReduce) is a managed cluster platform that simplifies running big data frameworks like Apache Hadoop and Spark on AWS.

Question 5

Which DynamoDB feature enables 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 item-level modifications in a DynamoDB table, enabling event-driven architectures and change data capture.

AWS Practice Test

AWS Practice Test

AWS AWS Database and Analytics Services 2