Google Cloud Certified Associate Cloud Engineer Practice 2025 - Free Cloud Engineer Practice Questions and Study Guide

Cloud Pub/Sub is a messaging service designed to facilitate asynchronous communication between different services in an event-driven architecture. This is crucial for decoupling components and enabling them to communicate without needing a direct connection, allowing each service to operate independently. Asynchronous messaging means that a publisher can send messages without waiting for subscribers to process them immediately; instead, subscribers can process messages at their own pace. This enhances scalability, reliability, and performance in distributed systems, making it well-suited for use cases such as microservices, event streaming, and real-time analytics.

The focus of Cloud Pub/Sub is not on data storage solutions, automated database backups, or managing the entire infrastructure. While it plays a vital role in communication between services, other tools and services within Google Cloud would be more appropriate for those functions.