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Google Professional-Cloud-Database-Engineer Exam Syllabus Topics:

Section	Objectives
Topic 1: Managing database solutions	- Deploy and administer databases 1. Manage maintenance and upgrades 2. Implement monitoring and alerting 3. Configure backups and recovery
Topic 2: Optimizing database performance	- Improve database efficiency 1. Optimize storage and compute resources 2. Tune queries and indexes 3. Troubleshoot performance bottlenecks
Topic 3: Migrating data solutions	- Plan and execute migrations 1. Use Database Migration Service 2. Validate migrated workloads 3. Migrate on-premises databases to Google Cloud
Topic 4: Designing scalable and highly available cloud database solutions	- Select appropriate database services 1. Design globally distributed architectures 2. Choose relational and non-relational databases 3. Plan scalability and availability strategies
Topic 5: Securing and ensuring compliance of database solutions	- Implement security best practices 1. Enable encryption and auditing 2. Configure IAM and access controls 3. Ensure compliance and governance

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Google Cloud Certified - Professional Cloud Database Engineer Sample Questions (Q55-Q60):

NEW QUESTION # 55
You have a Cloud SQL instance (DB-1) with two cross-region read replicas (DB-2 and DB-3). During a business continuity test, the primary instance (DB-1) was taken offline and a replica (DB-2) was promoted. The test has concluded and you want to return to the pre-test configuration. What should you do?

A. Delete DB-1, and re-create DB-1 as a read replica in the same region as DB-1.
B. Bring DB-1 back online.
C. Create DB-4 as a read replica in the same region as DB-1, and promote DB-4 to primary.
D. Delete DB-2 so that DB-1 automatically reverts to the primary instance.

Answer: C

Explanation:
If you need to have the primary instance in the zone that had the outage, you can do a failback. A failback performs the same steps as the failover, only in the opposite direction, to reroute traffic back to the original instance. To perform a failback, use the procedure in Initiating failover. https://cloud.google.com/sql/docs/mysql/high-availability#failback

NEW QUESTION # 56
Your company is shutting down their data center and migrating several MySQL and PostgreSQL databases to Google Cloud. Your database operations team is severely constrained by ongoing production releases and the lack of capacity for additional on-premises backups. You want to ensure that the scheduled migrations happen with minimal downtime and that the Google Cloud databases stay in sync with the on-premises data changes until the applications can cut over.
What should you do? (Choose two.)

A. Use a cross-region read replica to migrate the databases to Cloud SQL.
B. Use a read replica to migrate the databases to Cloud SQL.
C. Use replication from an external server to migrate the databases to Cloud SQL.
D. Use Database Migration Service to migrate the databases to Cloud SQL.
E. Use an external read replica to migrate the databases to Cloud SQL.

Answer: C,D

Explanation:
https://cloud.google.com/sql/docs/mysql/replication/manage-replicas#basic-steps-to-change-parallel-replication-flags

NEW QUESTION # 57
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 failover <ReplicaInstanceName>.
B. Use gcloud sql instances promote-replica <ReplicaInstanceName>.
C. Use gcloud sql instances promote-replica <PrimaryInstanceName>.
D. Use gcloud sql instances failover <PrimaryInstanceName>.

Answer: D

NEW QUESTION # 58
Your organization is migrating 50 TB Oracle databases to Bare Metal Solution for Oracle. Database backups must be available for quick restore. You also need to have backups available for 5 years. You need to design a cost-effective architecture that meets a recovery time objective (RTO) of 2 hours and recovery point objective (RPO) of 15 minutes. What should you do?

A. Create the database on a Bare Metal Solution server with the database running on flash storage.
Keep a local backup copy on standard storage.
Use the Oracle Recovery Manager (RMAN) backup utility to move backups older than one day to a Coldline Storage bucket.
B. Create the database on a Bare Metal Solution server with the database running on flash storage.
Keep a local backup copy on all flash storage.
Keep backups older than one day stored in Actifio OnVault storage.
C. Create the database on a Bare Metal Solution server with the database running on flash storage.
Keep a local backup copy on all flash storage.
Use the Oracle Recovery Manager (RMAN) backup utility to move backups older than one day to an Archive Storage bucket.
D. Create the database on a Bare Metal Solution server with the database running on flash storage.
Keep a local backup copy on standard storage.
Keep backups older than one day stored in Actifio OnVault storage.

Answer: D

Explanation:
This answer meets the RTO and RPO requirements by using flash storage for the database and standard storage for the local backup copy. It also meets the cost-effectiveness requirement by using Actifio OnVault storage, which is a low-cost, high-performance, and scalable storage solution that integrates with Google Cloud Backup and DR Service1.
References := 1: Solution Guide: Google Cloud Backup and DR for Oracle on Bare Metal Solution1

NEW QUESTION # 59
You are designing a highly available (HA) Cloud SQL for PostgreSQL instance that will be used by 100 databases. Each database contains 80 tables that were migrated from your on-premises environment to Google Cloud. The applications that use these databases are located in multiple regions in the US, and you need to ensure that read and write operations have low latency. What should you do?

A. Deploy 2 Cloud SQL instances in the us-central1 region, and create read replicas in us-east1 and us-west1.
B. Deploy 4 Cloud SQL instances in the us-central1 region, and create read replicas in us-central1, us-east1 and us-west1.
C. Deploy 4 Cloud SQL instances in the us-central1 region with HA enabled, and create read replicas in us-central1, us-east1, and us-west1.
D. Deploy 2 Cloud SQL instances in the us-central1 region with HA enabled, and create read replicas in us-east1 and us-west1.

Answer: A

NEW QUESTION # 60
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