GCP Associate Cloud Engineer Practice Question

Memorystore for Redis is a fully managed, in-memory data store that speaks the native Redis protocol. When you create an instance in Standard Tier, the service automatically provisions a replica in a different zone within the same region, replicates data asynchronously to that replica, and performs automatic failover if the primary node becomes unavailable. Because Google operates the service, there is no need for customers to handle cluster installation, patching, or failover scripting, satisfying the minimal-operations requirement.

Cloud SQL and Cloud Bigtable are durable databases, not low-latency in-memory caches, and they do not support Redis commands. Running a self-managed Redis StatefulSet on GKE could meet the protocol requirement but leaves failover, monitoring, and maintenance tasks to your team, conflicting with the low-operations mandate.