PROFESSIONAL-CLOUD-DATABASE-ENGINEER Online Practice Questions and Answers

You need to redesign the architecture of an application that currently uses Cloud SQL for PostgreSQL. The users of the application complain about slow query response times. You want to enhance your application architecture to offer sub-millisecond query latency. What should you do?

A. Configure Firestore, and modify your application to offload queries.

B. Configure Bigtable, and modify your application to offload queries.

C. Configure Cloud SQL for PostgreSQL read replicas to offload queries.

D. Configure Memorystore, and modify your application to offload queries.

Your company uses the Cloud SQL out-of-disk recommender to analyze the storage utilization trends of production databases over the last 30 days. Your database operations team uses these recommendations to proactively monitor storage utilization and implement corrective actions. You receive a recommendation that the instance is likely to run out of disk space. What should you do to address this storage alert?

A. Normalize the database to the third normal form.

B. Compress the data using a different compression algorithm.

C. Manually or automatically increase the storage capacity.

D. Create another schema to load older data.

You are working on a new centralized inventory management system to track items available in 200 stores, which each have 500 GB of data. You are planning a gradual rollout of the system to a few stores each week. You need to design an SQL database architecture that minimizes costs and user disruption during each regional rollout and can scale up or down on nights and holidays. What should you do?

A. Use Oracle Real Application Cluster (RAC) databases on Bare Metal Solution for Oracle.

B. Use sharded Cloud SQL instances with one or more stores per database instance.

C. Use a Biglable cluster with autoscaling.

D. Use Cloud Spanner with a custom autoscaling solution.

You recently launched a new product to the US market. You currently have two Bigtable clusters in one US region to serve all the traffic. Your marketing team is planning an immediate expansion to APAC. You need to roll out the regional expansion while implementing high availability according to Google-recommended practices. What should you do?

A. Maintain a target of 23% CPU utilization by locating: cluster-a in zone us-central1-a cluster-b in zone europe-west1-d cluster-c in zone asia-east1-b

B. Maintain a target of 23% CPU utilization by locating: cluster-a in zone us-central1-a cluster-b in zone us-central1-b cluster-c in zone us-east1-a

C. Maintain a target of 35% CPU utilization by locating: cluster-a in zone us-central1-a cluster-b in zone australia-southeast1-a cluster-c in zone europe-west1-d cluster-d in zone asia-east1-b

D. Maintain a target of 35% CPU utilization by locating: cluster-a in zone us-central1-a cluster-b in zone us-central2-a cluster-c in zone asia-northeast1-b cluster-d in zone asia-east1-b

You need to issue a new server certificate because your old one is expiring. You need to avoid a restart of your Cloud SQL for MySQL instance. What should you do in your Cloud SQL instance?

A. Issue a rollback, and download your server certificate.

B. Create a new client certificate, and download it.

C. Create a new server certificate, and download it.

D. Reset your SSL configuration, and download your server certificate.

Your organization has a ticketing system that needs an online marketing analytics and reporting application. You need to select a relational database that can manage hundreds of terabytes of data to support this new application. Which database should you use?

A. Cloud SQL

B. BigQuery

C. Cloud Spanner

D. Bigtable

You support a consumer inventory application that runs on a multi-region instance of Cloud Spanner. A customer opened a support ticket to complain about slow response times. You notice a Cloud Monitoring alert about high CPU utilization. You want to follow Google-recommended practices to address the CPU performance issue. What should you do first?

A. Increase the number of processing units.

B. Modify the database schema, and add additional indexes.

C. Shard data required by the application into multiple instances.

D. Decrease the number of processing units.

Your hotel booking company is expanding into Country A, where personally identifiable information (PII) must comply with regional data residency requirements and audits. You need to isolate customer data in Country A from the rest of the customer data. You want to design a multi-tenancy strategy to efficiently manage costs and operations. What should you do?

A. Apply a schema data management pattern.

B. Apply an instance data management pattern.

C. Apply a table data management pattern.

D. Apply a database data management pattern.

Your organization is running a Firestore-backed Firebase app that serves the same top ten news stories on a daily basis to a large global audience. You want to optimize content delivery while decreasing cost and latency. What should you do?

A. Enable serializable isolation in the Firebase app.

B. Deploy a US multi-region Firestore location.

C. Build a Firestore bundle, and deploy bundles to Cloud CDN.

D. Create a Firestore index on the news story date.

You have deployed a Cloud SQL for SQL Server instance. In addition, you created a cross-region read replica for disaster recovery (DR) purposes. Your company requires you to maintain and monitor a recovery point objective (RPO) of less than 5 minutes. You need to verify that your cross-region read replica meets the allowed RPO. What should you do?

A. Use Cloud SQL instance monitoring.

B. Use the Cloud Monitoring dashboard with available metrics from Cloud SQL.

C. Use Cloud SQL logs.

D. Use the SQL Server Always On Availability Group dashboard.