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Google Professional-Cloud-Database-Engineer exam is a certification offered by Google for professionals seeking to demonstrate their expertise in designing, developing, and managing cloud-based databases on Google Cloud Platform. Google Cloud Certified - Professional Cloud Database Engineer certification is intended for individuals who have experience working with cloud databases and have a deep understanding of Google Cloud Platform infrastructure and services.
NEW QUESTION # 38
You are developing a new application on a VM that is on your corporate network. The application will use Java Database Connectivity (JDBC) to connect to Cloud SQL for PostgreSQL. Your Cloud SQL instance is configured with IP address 192.168.3.48, and SSL is disabled. You want to ensure that your application can access your database instance without requiring configuration changes to your database. What should you do?
- A. Define a connection string using Cloud SQL Auth proxy configured with a service account to point to the external (public) IP address of your Cloud SQL instance.
- B. Define a connection string using Cloud SQL Auth proxy configured with a service account to point to the internal (private) IP address of your Cloud SQL instance.
- C. Define a connection string using a database username and password to point to the internal (private) IP address of your Cloud SQL instance.
- D. Define a connection string using your Google username and password to point to the external (public) IP address of your Cloud SQL instance.
Answer: B
Explanation:
The Cloud SQL connectors are libraries that provide encryption and IAM-based authorization when connecting to a Cloud SQL instance. They can't provide a network path to a Cloud SQL instance if one is not already present. Other ways to connect to a Cloud SQL instance include using a database client or the Cloud SQL Auth proxy. https://cloud.google.com/sql/docs/postgres/connect-connectors https://github.com/GoogleCloudPlatform/cloud-sql-jdbc-socket-factory/blob/main/docs/jdbc-postgres.md
NEW QUESTION # 39
Your company is migrating all legacy applications to Google Cloud. All on-premises applications are using legacy Oracle 12c databases with Oracle Real Application Cluster (RAC) for high availability (HA) and Oracle Data Guard for disaster recovery. You need a solution that requires minimal code changes, provides the same high availability you have today on-premises, and supports a low latency network for migrated legacy applications. What should you do?
- A. Migrate the databases to Compute Engine using regional persistent disks.
- B. Migrate the databases to Cloud Spanner.
- C. Migrate the databases to Bare Metal Solution for Oracle.
- D. Migrate the databases to Cloud SQL, and enable a standby database.
Answer: D
Explanation:
BMS is the only Google database service which supports Oracle aside from GCVE. It allows you to use all native Oracle features including RAC. Since GCVE isn't mentioned, it has to be D - Bare Metal Solution.
NEW QUESTION # 40
Your team is running a Cloud SQL for MySQL instance with a 5 TB database that must be available 24/7.
You need to save database backups on object storage with minimal operational overhead or risk to your production workloads. What should you do?
- A. Use the mysqldump utility on the primary database instance to export the backup.
- B. Clone the Cloud SQL instance, and then use the mysqldump utlity to export the data.
- C. Create a read replica, and then use the mysqldump utility to export each table.
- D. Use Cloud SQL serverless exports.
Answer: D
Explanation:
https://cloud.google.com/blog/products/databases/introducing-cloud-sql-serverless-exports
NEW QUESTION # 41
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 replication from an external server 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 an external read replica to migrate the databases to Cloud SQL.
Answer: A,C
NEW QUESTION # 42
Your organization operates in a highly regulated industry. Separation of concerns (SoC) and security principle of least privilege (PoLP) are critical. The operations team consists of:
Person A is a database administrator.
Person B is an analyst who generates metric reports.
Application C is responsible for automatic backups.
You need to assign roles to team members for Cloud Spanner. Which roles should you assign?
- A. roles/spanner.databaseAdmin for Person A
roles/spanner.databaseReader for Person B
roles/spanner.backupAdmin for Application C - B. roles/spanner.databaseAdmin for Person A
roles/spanner.databaseUser for Person B
roles/spanner.backupWriter for Application C - C. roles/spanner.databaseAdmin for Person A
roles/spanner.databaseUser for Person B
roles/spanner databaseReader for Application C - D. roles/spanner.databaseAdmin for Person A
roles/spanner.databaseReader for Person B
roles/spanner.backupWriter for Application C
Answer: A
NEW QUESTION # 43
Your team is building a new inventory management application that will require read and write database instances in multiple Google Cloud regions around the globe. Your database solution requires 99.99% availability and global transactional consistency. You need a fully managed backend relational database to store inventory changes. What should you do?
- A. Use Firestore.
- B. Use Bigtable.
- C. Use Cloud SQL for MySQL
- D. Use Cloud Spanner.
Answer: C
NEW QUESTION # 44
You are migrating an on-premises application to Google Cloud. The application requires a high availability (HA) PostgreSQL database to support business-critical functions. Your company's disaster recovery strategy requires a recovery time objective (RTO) and recovery point objective (RPO) within 30 minutes of failure. You plan to use a Google Cloud managed service. What should you do to maximize uptime for your application?
- A. Deploy Cloud SQL for PostgreSQL in a regional configuration. Create a read replica in a different zone in the same region and a read replica in another region for disaster recovery.
- B. Migrate the PostgreSQL database to multi-regional Cloud Spanner so that a single region outage will not affect your application. Update the schema to support Cloud Spanner data types, and refactor the application.
- C. Deploy Cloud SQL for PostgreSQL in a regional configuration with HA enabled. Create a cross-region read replica, and promote the read replica as the primary node for disaster recovery.
- D. Deploy Cloud SQL for PostgreSQL in a regional configuration with HA enabled. Take periodic backups, and use this backup to restore to a new Cloud SQL for PostgreSQL instance in another region during a disaster recovery event.
Answer: C
Explanation:
The best answer is deploy an HA configuration and have a read replica you could promote to the primary in a different region
NEW QUESTION # 45
Your ecommerce website captures user clickstream data to analyze customer traffic patterns in real time and support personalization features on your website. You plan to analyze this data using big data tools. You need a low-latency solution that can store 8 TB of data and can scale to millions of read and write requests per second. What should you do?
- A. Write your data into Bigtable and use Dataproc and the Apache Hbase libraries for analysis.
- B. Stream your data into BigQuery and use Dataproc and the BigQuery Storage API to analyze large volumes of data.
- C. Deploy a Cloud SQL environment with read replicas for improved performance. Use Datastream to export data to Cloud Storage and analyze with Dataproc and the Cloud Storage connector.
- D. Use Memorystore to handle your low-latency requirements and for real-time analytics.
Answer: A
Explanation:
Start with the lowest tier and smallest size and then grow your instance as needed. Memorystore provides automated scaling using APIs, and optimized node placement across zones for redundancy. Memorystore for Memcached can support clusters as large as 5 TB, enabling millions of QPS at very low latency
NEW QUESTION # 46
Your project is using Bigtable to store data that should not be accessed from the public internet under any circumstances, even if the requestor has a valid service account key. You need to secure access to this dat a. What should you do?
- A. Use customer-managed encryption keys (CMEK).
- B. Use VPC Service Controls to create a trusted network for the Bigtable service.
- C. Use Identity and Access Management (IAM) for Bigtable access control.
- D. Use Google Cloud Armor to add IP addresses to an allowlist.
Answer: B
Explanation:
"Users can define a security perimeter around Google Cloud resources such as Cloud Storage buckets, Bigtable instances, and BigQuery datasets to constrain data within a VPC and control the flow of data." https://cloud.google.com/vpc-service-controls
NEW QUESTION # 47
Your customer has a global chat application that uses a multi-regional Cloud Spanner instance. The application has recently experienced degraded performance after a new version of the application was launched. Your customer asked you for assistance. During initial troubleshooting, you observed high read latency. What should you do?
- A. Use query parameters to speed up frequently executed queries.
- B. Use SQL statements to analyze SPANNER_SYS.QUERY_STATS* tables.
- C. Change the Cloud Spanner configuration from multi-region to single region.
- D. Use SQL statements to analyze SPANNER_SYS.READ_STATS* tables.
Answer: C
NEW QUESTION # 48
You are migrating your data center to Google Cloud. You plan to migrate your applications to Compute Engine and your Oracle databases to Bare Metal Solution for Oracle. You must ensure that the applications in different projects can communicate securely and efficiently with the Oracle databases. What should you do?
- A. Set up Serverless VPC Access.
- B. Set up a Shared VPC, configure multiple service projects, and create firewall rules.
- C. Set up Private Service Connect.
- D. Set up Traffic Director.
Answer: B
Explanation:
https://medium.com/google-cloud/shared-vpc-in-google-cloud-64527e0a409e#:~:text=Unlike%20VPC%
20peering%2C%20Shared%20VPC%20connects%20projects%20within%20the%20same%20organization.
&text=There%20are%20a%20lot%20of,between%20VPCs%20in%20different%20projects.
NEW QUESTION # 49
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. Shard data required by the application into multiple instances.
- C. Decrease the number of processing units.
- D. Modify the database schema, and add additional indexes.
Answer: A
Explanation:
In case of high CPU utilization like, mentioned in question, refer: https://cloud.google.com/spanner/docs/identify-latency-point#:~:text=Check%20the%20CPU%20utilization%20of%20the%20instance.%20If%20the%20CPU%20utilization%20of%20the%20instance%20is%20above%20the%20recommended%20level%2C%20you%20should%20manually%20add%20more%20nodes%2C%20or%20set%20up%20auto%20scaling. "Check the CPU utilization of the instance. If the CPU utilization of the instance is above the recommended level, you should manually add more nodes, or set up auto scaling." Indexes and schema are reviewed post identifying query with slow performance. Refer : https://cloud.google.com/spanner/docs/troubleshooting-performance-regressions#review-schema
NEW QUESTION # 50
Your digital-native business runs its database workloads on Cloud SQL. Your website must be globally accessible 24/7. You need to prepare your Cloud SQL instance for high availability (HA). You want to follow Google-recommended practices. What should you do? (Choose two.)
- A. Enable point-in-time recovery.
- B. Configure single zone availability for automated backups.
- C. Create a PostgreSQL database on-premises as the HA option.
- D. Schedule automated backups.
- E. Set up manual backups.
Answer: A,D
Explanation:
D: Enable point-in-time recovery - This feature allows you to restore your database to a specific point in time.
It helps protect against data loss and can be used in the event of data corruption or accidental data deletion. E.
Schedule automated backups - Automated backups allow you to take regular backups of your database without manual intervention. You can use these backups to restore your database in the event of data loss or corruption.
NEW QUESTION # 51
You are troubleshooting a connection issue with a newly deployed Cloud SQL instance on Google Cloud.
While investigating the Cloud SQL Proxy logs, you see the message Error 403: Access Not Configured. What should you do?
- A. Check the app.yaml value cloud_sql_instances for a misspelled or incorrect instance connection name.
- B. Check whether your service account has cloudsql.instances.connect permission.
- C. Enable the Cloud SQL Admin API.
- D. Ensure that you are using an external (public) IP address interface.
Answer: C
Explanation:
https://cloud.google.com/sql/docs/mysql/connect-auth-proxy#troubleshooting C because in docs it says
"Make sure to enable the Cloud SQL Admin API. If it is not, you see output like Error 403: Access Not Configured in your Cloud SQL
NEW QUESTION # 52
Your organization has strict policies on tracking rollouts to production and periodically shares this information with external auditors to meet compliance requirements. You need to enable auditing on several Cloud Spanner databases. What should you do?
- A. Use Liquibase to roll out changes to higher environments.
- B. Use backup and restore to roll out changes to higher environments.
- C. Use replication to roll out changes to higher environments.
- D. Manually capture detailed DBA audit logs when changes are rolled out to higher environments.
Answer: A
Explanation:
To satisfy audit reporting you would need a way to record what was changed and when. The best answer is one which uses some kind of source code control system (SCCS). That rules out A and B. Any mention of anything manual in a cloud environment should look suspicious, which leave option C. As it happens, Liquibase is an SCCS and can be integrated with Spanner. https://cloud.google.com/spanner/docs/use-liquibase
NEW QUESTION # 53
You plan to use Database Migration Service to migrate data from a PostgreSQL on-premises instance to Cloud SQL. You need to identify the prerequisites for creating and automating the task. What should you do?
(Choose two.)
- A. Drop or disable all users except database administration users.
- B. Ensure that all PostgreSQL tables have a primary key.
- C. Ensure that pglogical is installed on the source PostgreSQL database.
- D. Disable all foreign key constraints on the source PostgreSQL database.
- E. Shut down the database before the Data Migration Service task is started.
Answer: B,C
Explanation:
https://cloud.google.com/database-migration/docs/postgres/faq
NEW QUESTION # 54
Your company uses Bigtable for a user-facing application that displays a low-latency real-time dashboard. You need to recommend the optimal storage type for this read-intensive database. What should you do?
- A. Recommend mixed storage types.
- B. Recommend splitting the Bigtable instance into two instances in order to load balance the concurrent reads.
- C. Recommend solid-state drives (SSD).
- D. Recommend hard disk drives (HDD).
Answer: B
NEW QUESTION # 55
You want to migrate an on-premises 100 TB Microsoft SQL Server database to Google Cloud over a 1 Gbps network link. You have 48 hours allowed downtime to migrate this database. What should you do? (Choose two.)
- A. Increase the network bandwidth to 2 Gbps, and then perform an offline data migration.
- B. Move the physical database servers from on-premises to Google Cloud.
- C. Keep the network bandwidth at 1 Gbps, and then perform an offline data migration.
- D. Use a change data capture (CDC) migration strategy.
- E. Increase the network bandwidth to 10 Gbps, and then perform an offline data migration.
Answer: D,E
Explanation:
https://cloud.google.com/architecture/migration-to-google-cloud-transferring-your-large-datasets#online_versus_offline_transfer
NEW QUESTION # 56
You are managing a small Cloud SQL instance for developers to do testing. The instance is not critical and has a recovery point objective (RPO) of several days. You want to minimize ongoing costs for this instance.
What should you do?
- A. Turn on automated backup, and turn off transaction log retention.
- B. Take one manual backup per day, and turn off transaction log retention.
- C. Take no backups, and turn off transaction log retention.
- D. Turn on automated backup, and turn on transaction log retention.
Answer: A
Explanation:
https://cloud.google.com/sql/docs/mysql/backup-recovery/backups
NEW QUESTION # 57
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 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 - 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 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
Answer: B
NEW QUESTION # 58
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 # 59
You are designing a new gaming application that uses a highly transactional relational database to store player authentication and inventory data in Google Cloud. You want to launch the game in multiple regions. What should you do?
- A. Use Bigtable with clusters in multiple regions to deploy the database
- B. Use Cloud Spanner to deploy the database.
- C. Use Cloud SQL with a regional read replica to deploy the database.
- D. Use BigQuery to deploy the database
Answer: D
NEW QUESTION # 60
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