Free Google Professional-Cloud-Database-Engineer Exam Questions

Question 1

Your company is developing a new global transactional application that must be ACID-compliant and have 99.999% availability. You are responsible for selecting the appropriate Google Cloud database to serve as a datastore for this new application. What should you do?

A : Use Firestore.

B : Use Cloud Spanner.

C : Use Cloud SQL.

D : Use Bigtable.

Answer: B

Question 2

Your organization stores marketing data such as customer preferences and purchase history on Bigtable. The consumers of this database are predominantly data analysts and operations users. You receive a service ticket from the database operations department citing poor database performance between 9 AM-10 AM every day. Theapplication team has confirmed no latency from their logs. A new cohort of pilot users that is testing a dataset loaded from a third-party data provider is experiencing poor database performance. Other users are not affected. You need to troubleshoot the issue. What should you do?

A : Isolate the data analysts and operations user groups to use different Bigtable instances.

B : Check the Cloud Monitoring table/bytes_used metric from Bigtable.

C : Use Key Visualizer for Bigtable.

D : Add more nodes to the Bigtable cluster.

Answer: C

Question 3

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 an external read replica to migrate the databases to Cloud SQL.

B : Use a read replica to migrate the databases to Cloud SQL.

C : Use Database Migration Service to migrate the databases to Cloud SQL.

D : Use a cross-region read replica to migrate the databases to Cloud SQL.

E : Use replication from an external server to migrate the databases to Cloud SQL.

Answer: C,E

Question 4

You are designing a database strategy for a new web application in one region. You need to minimize write latency. What should you do?

A : Cloud SQL with cross-region replicas.

B : high availability (HA) Cloud SQL with multiple zones.

C : zonal Cloud SQL without high availability (HA).

D : Cloud Spanner in a regional configuration.

Answer: A

Question 5