Google Professional Cloud Developer Question 9
Single answerGoogle Cloud PlatformYou are designing a microservices-based application on Google Cloud. One of your services, responsible for processing user uploads, needs to communicate asynchronously with another service that handles data transformations. Which Google Cloud service would be the most appropriate to implement asynchronous communication between these two microservices?
- A
Cloud Pub/Sub
- B
Cloud Storage
- C
Cloud Spanner
- D
Cloud Functions
Show answer and explanation
Correct answer: A
Explanation
In a microservices architecture, asynchronous communication between services can be effectively implemented using a messaging service. Cloud Pub/Sub enables decoupled communication by allowing services to publish messages to a topic and other services to subscribe and process them independently. This ensures scalability and fault tolerance in the system, making it the most appropriate choice for the given scenario.
- A. Correct.
Cloud Pub/Sub is a fully managed messaging service designed for asynchronous communication between independent components in a microservices architecture. It supports decoupling and scalability, making it the best choice for this use case.
- B. Incorrect.
Cloud Storage is a file storage service and is not designed for messaging or asynchronous communication. It is more suitable for storing and retrieving files.
- C. Incorrect.
Cloud Spanner is a globally-distributed database service and is not designed for messaging or asynchronous communication between microservices.
- D. Incorrect.
Cloud Functions is a serverless compute service for running code in response to events. While it can be used in event-driven architectures, it is not a messaging service for enabling asynchronous communication between microservices.