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[General] You Can Never Think About Failure With Google Professional-Cloud-Database-Engine

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【General】 You Can Never Think About Failure With Google Professional-Cloud-Database-Engine

Posted at 1/9/2026 17:35:24      View：25 | Replies：1        Print      Only Author   [Copy Link] 1#
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Google Professional-Cloud-Database-Engineer Certification Exam is designed to test the skills and knowledge of professionals who are responsible for managing and designing databases on the Google Cloud Platform. Google Cloud Certified - Professional Cloud Database Engineer certification is part of the Google Cloud Certified program, which recognizes individuals who have demonstrated their expertise in using Google Cloud technology.
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Google Cloud Certified - Professional Cloud Database Engineer Sample Questions (Q76-Q81):NEW QUESTION # 76
You are the DBA of an online tutoring application that runs on a Cloud SQL for PostgreSQL database. You are testing the implementation of the cross-regional failover configuration. The database in region R1 fails over successfully to region R2, and the database becomes available for the application to process dat a. During testing, certain scenarios of the application work as expected in region R2, but a few scenarios fail with database errors. The application-related database queries, when executed in isolation from Cloud SQL for PostgreSQL in region R2, work as expected. The application performs completely as expected when the database fails back to region R1. You need to identify the cause of the database errors in region R2. What should you do?
  • A. Determine whether the versions of Cloud SQL for PostgreSQL in regions R1 and R2 are different.
  • B. Determine whether Cloud SQL for PostgreSQL in region R2 is a near-real-time copy of region R1 but not an exact copy.
  • C. Determine whether the failover of Cloud SQL for PostgreSQL from region R1 to region R2 is in progress or has completed successfully.
  • D. Determine whether the database patches of Cloud SQI for PostgreSQL in regions R1 and R2 are different.
Answer: B
Explanation:
Verify that the replica has processed all the transactions it has received from the primary. This ensures that when promoted, the replica reflects all transactions that were received before the primary became unavailable. https://cloud.google.com/sql/doc ... y_failover_criteria

NEW QUESTION # 77
You are managing a Cloud SQL for PostgreSQL instance in Google Cloud. You need to test the high availability of your Cloud SQL instance by performing a failover. You want to use the cloud command.
What should you do?
  • A. Use gcloud sql instances promote-replica <rimaryInstanceName>.
  • B. Use gcloud sql instances failover <rimaryInstanceName>.
  • C. Use gcloud sql instances promote-replica <ReplicaInstanceName>.
  • D. Use gcloud sql instances failover <ReplicaInstanceName>.
Answer: B

NEW QUESTION # 78
You are the database administrator of a Cloud SQL for PostgreSQL instance that has pgaudit disabled. Users are complaining that their queries are taking longer to execute and performance has degraded over the past few months. You need to collect and analyze query performance data to help identity slow-running queries. What should you do?
  • A. View Cloud SQL operations to view historical query information.
  • B. Review application logs to identify database calls.
  • C. Use the Query Insights dashboard to identify high execution times.
  • D. White a Logs Explorer query to identify database queries with high execution times.
Answer: C
Explanation:
A Cloud SQL instance configured for HA is also called a regional instance and has a primary and secondary zone within the configured region. Within a regional instance, the configuration is made up of a primary instance and a standby instance. Through synchronous replication to each zone's persistent disk, all writes made to the primary instance are replicated to disks in both zones before a transaction is reported as committed. In the event of an instance or zone failure, the standby instance becomes the new primary instance. Users are then rerouted to the new primary instance. This process is called a failover.

NEW QUESTION # 79
Your company is migrating all legacy applications to Google Cloud. All on-premises applications are using legacy Oracle 12c databases with Oracle Real Application Cluster (RAC) for high availability (HA) and Oracle Data Guard for disaster recovery. You need a solution that requires minimal code changes, provides the same high availability you have today on-premises, and supports a low latency network for migrated legacy applications. What should you do?
  • A. Migrate the databases to Bare Metal Solution for Oracle.
  • B. Migrate the databases to Cloud SQL, and enable a standby database.
  • C. Migrate the databases to Compute Engine using regional persistent disks.
  • D. Migrate the databases to Cloud Spanner.
Answer: A
Explanation:
BMS is the only Google database service which supports Oracle aside from GCVE. It allows you to use all native Oracle features including RAC. Since GCVE isn't mentioned, it has to be D - Bare Metal Solution.

NEW QUESTION # 80
You want to migrate your on-premises PostgreSQL database to Compute Engine. You need to migrate this database with the minimum downtime possible. What should you do?
  • A. Create a hot standby on Compute Engine, and use PgBouncer to switch over the connections.
  • B. Create a read replica on Cloud SQL, and then promote it to a read/write standalone instance.
  • C. Use Database Migration Service to migrate your database.
  • D. Perform a full backup of your on-premises PostgreSQL, and then, in the migration window, perform an incremental backup.
Answer: A
Explanation:
PgBouncer maintains a pool for connections for each database and user combination. PgBouncer either creates a new database connection for a client or reuses an existing connection for the same user and database.
+ PgBouncer is a simple PostgreSQLconnection pool that allows for several thousand connections at a time.
Using Kubernetes Engine to run a Helm Chart w/ PgBouncer based on the great article from futuretech- industries, we were able to set up an easily deployable system to get the most out of our CloudSQL DBs without breaking the bank.https://medium.com/google-cloud/ ... sql-postgresql-max- connections-w-pgbouncer-kubernetes-engine-49b0b2894820#:~:text=That%20is%20where,breaking%20the%
20bank.

NEW QUESTION # 81
......
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Posted at 1/13/2026 20:51:08        Only Author  2#
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