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Pass Professional-Cloud-Database-Engineer Exam Guide

Google Cloud Certified - Professional Cloud Database Engineer Questions and Answers

Question 13

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 data. 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?

Options:

A.

Determine whether the versions of Cloud SQL for PostgreSQL in regions R1 and R2 are different.

B.

Determine whether the database patches of Cloud SQI for PostgreSQL in regions R1 and R2 are different.

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 Cloud SQL for PostgreSQL in region R2 is a near-real-time copy of region R1 but not an exact copy.

Question 14

You are designing for a write-heavy application. During testing, you discover that the write workloads are performant in a regional Cloud Spanner instance but slow down by an order of magnitude in a multi-regional instance. You want to make the write workloads faster in a multi-regional instance. What should you do?

Options:

A.

Place the bulk of the read and write workloads closer to the default leader region.

B.

Use staleness of at least 15 seconds.

C.

Add more read-write replicas.

D.

Keep the total CPU utilization under 45% in each region.

Question 15

Your organization is running a low-latency reporting application on Microsoft SQL Server. In addition to the database engine, you are using SQL Server Analysis Services (SSAS), SQL Server Reporting Services (SSRS), and SQL Server Integration Services (SSIS) in your on-premises environment. You want to migrate your Microsoft SQL Server database instances to Google Cloud. You need to ensure minimal disruption to the existing architecture during migration. What should you do?

Options:

A.

Migrate to Cloud SQL for SQL Server.

B.

Migrate to Cloud SQL for PostgreSQL.

C.

Migrate to Compute Engine.

D.

Migrate to Google Kubernetes Engine (GKE).

Question 16

Your company wants you to migrate their Oracle, MySQL, Microsoft SQL Server, and PostgreSQL relational databases to Google Cloud. You need a fully managed, flexible database solution when possible. What should you do?

Options:

A.

Migrate all the databases to Cloud SQL.

B.

Migrate the Oracle, MySQL, and Microsoft SQL Server databases to Cloud SQL, and migrate the PostgreSQL databases to Compute Engine.

C.

Migrate the MySQL, Microsoft SQL Server, and PostgreSQL databases to Compute Engine, and migrate the Oracle databases to Bare Metal Solution for Oracle.

D.

Migrate the MySQL, Microsoft SQL Server, and PostgreSQL databases to Cloud SQL, and migrate the Oracle databases to Bare Metal Solution for Oracle.