In a Move Toward Using Microservices, a Company's Management Team

question 18

Multiple Choice

In a move toward using microservices, a company's Management team has asked all Development teams to build their services so that API requests depend only on that service's data store. One team is building a Payments service which has its own database; the service needs data that originates in the Accounts database. Both are using Amazon DynamoDB. What approach will result in the simplest, decoupled, and reliable method to get near-real time updates from the Accounts database?

• A) Use Amazon Glue to perform frequent ETL updates from the Accounts database to the Payments database.
• B) Use Amazon ElastiCache in Payments, with the cache updated by triggers in the Accounts database.
• C) Use Amazon Kinesis Data Firehose to deliver all changes from the Accounts database to the Payments database.
• D) Use Amazon DynamoDB Streams to deliver all changes from the Accounts database to the Payments database.

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