Google Professional Cloud Database Engineer Question 214
Select 4Google Cloud PlatformYou are managing a Google Cloud-based database system that replicates data from your on-premises database to Google Cloud. Your organization has decided to implement reverse replication to synchronize data changes from Google Cloud back to the on-premises database. Which of the following steps are required to set up reverse replication in this scenario?
- A
Ensure that the on-premises database supports replication and is configured as a replication target.
- B
Enable network connectivity between the Google Cloud environment and the on-premises database, such as through a VPN or Interconnect.
- C
Set up a Cloud Pub/Sub topic to handle reverse replication traffic from Google Cloud to the on-premises database.
- D
Configure the Google Cloud database to act as a replication source, including enabling binary logging if using MySQL.
- E
Use a third-party replication tool or managed service that supports reverse replication between Google Cloud and on-premises databases.
Show answer and explanation
Correct answers: A, B, D, E
Explanation
Reverse replication involves synchronizing data changes from a Google Cloud database back to an on-premises database. To achieve this, you need to ensure the on-premises database is configured as a replication target, establish network connectivity between Google Cloud and the on-premises environment, configure the Google Cloud database as a replication source, and consider using a third-party tool or service to facilitate the process. Cloud Pub/Sub is not designed for database replication and is not relevant in this context.
- A. Correct.
Correct: The on-premises database must support replication and be properly configured to receive data changes from the Google Cloud database.
- B. Correct.
Correct: Network connectivity between Google Cloud and the on-premises system is essential for data replication and synchronization.
- C. Incorrect.
Incorrect: Cloud Pub/Sub is not typically used for reverse replication; it is more suited for event-driven architectures and streaming data, not database replication.
- D. Correct.
Correct: The Google Cloud database must be configured as a replication source. For relational databases like MySQL, this can involve enabling binary logging.
- E. Correct.
Correct: Many organizations use third-party tools or services that simplify the reverse replication process, as they often provide advanced features and compatibility.