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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 primary DBA of a Cloud SQL for PostgreSQL database that supports 6 enterprise applications in production. You used Cloud SQL Insights to identify inefficient queries and now need to identify the application that is originating the inefficient queries. You want to follow Google-recommended practices. What should you do?

Options:

A.

Shut down and restart each application.

B.

Write a utility to scan database query logs.

C.

Write a utility to scan application logs.

D.

Use query tags to add application-centric database monitoring.

Question 14

Your team recently released a new version of a highly consumed application to accommodate additional user traffic. Shortly after the release, you received an alert from your production monitoring team that there is consistently high replication lag between your primary instance and the read replicas of your Cloud SQL for MySQL instances. You need to resolve the replication lag. What should you do?

Options:

A.

Identify and optimize slow running queries, or set parallel replication flags.

B.

Stop all running queries, and re-create the replicas.

C.

Edit the primary instance to upgrade to a larger disk, and increase vCPU count.

D.

Edit the primary instance to add additional memory.

Question 15

Your company is migrating their MySQL database to Cloud SQL and cannot afford any planned downtime during the month of December. The company is also concerned with cost, so you need the most cost-effective solution. What should you do?

Options:

A.

Open a support ticket in Google Cloud to prevent any maintenance in that MySQL instance during the month of December.

B.

Use Cloud SQL maintenance settings to prevent any maintenance during the month of December.

C.

Create MySQL read replicas in different zones so that, if any downtime occurs, the read replicas will act as the primary instance during the month of December.

D.

Create a MySQL regional instance so that, if any downtime occurs, the standby instance will act as the primary instance during the month of December.

Question 16

You are running an instance of Cloud Spanner as the backend of your ecommerce website. You learn that the quality assurance (QA) team has doubled the number of their test cases. You need to create a copy of your Cloud Spanner database in a new test environment to accommodate the additional test cases. You want to follow Google-recommended practices. What should you do?

Options:

A.

Use Cloud Functions to run the export in Avro format.

B.

Use Cloud Functions to run the export in text format.

C.

Use Dataflow to run the export in Avro format.

D.

Use Dataflow to run the export in text format.