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You have a Standard Tier Memorystore for Redis instance deployed in a production environment. You need to simulate a Redis instance failover in the most accurate disaster recovery situation, and ensure that the failover has no impact on production dat a. What should you do?
Correct Answer: D
To simulate a Redis instance failover in a production-like environment without impacting production data, the best approach is to use a development environment. Here's why option D is the best choice: Standard Tier Memorystore for Redis: The Standard Tier provides high availability and automatic failover capabilities. It's suitable for testing failover scenarios in a controlled environment. Development Environment: Using a development environment ensures that any potential data loss or impact from the failover simulation does not affect production data, maintaining the integrity and availability of the production system. Limited-Data-Loss Mode: The limited-data-loss mode for manual failover ensures that data loss is minimized during the failover process, making it a realistic simulation of a production failover scenario. Steps to Implement: Create a Development Environment: Set up a development environment with a Standard Tier Memorystore for Redis instance that mirrors the configuration of your production instance. Initiate Manual Failover: Initiate a manual failover using the limited-data-loss data protection mode to simulate a failover scenario: gcloud redis instances failover INSTANCE_ID --data-protection-mode=limited-data-loss Verify Failover: Monitor and verify the failover process to ensure it behaves as expected, simulating the disaster recovery scenario accurately. Reference: Memorystore for Redis Documentation Manual Failover in Memorystore