Professional-Cloud-Database-Engineer認證考試 - Professional-Cloud-Database-Engineer软件版

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Google Professional-Cloud-Database-Engineer Exam Overview:

Certification Vendor:	Google Cloud
Exam Name:	Professional Cloud Database Engineer Exam
Exam Number:	Professional-Cloud-Database-Engineer
Exam Format:	Multiple select, Multiple choice
Exam Duration:	120 minutes
Real Exam Qty:	50-60
Related Certifications:	Google Cloud Certified - Professional Data Engineer Google Cloud Certified - Professional Cloud Architect
Certificate Validity Period:	2 years
Available Languages:	Japanese, English
Passing Score:	Not publicly disclosed
Exam Price:	$200 USD (plus tax where applicable)
Recommended Training:	Google Cloud Professional Cloud Database Engineer Learning Path
Exam Registration:	Google Cloud Certification Registration
Sample Questions:	Google Professional-Cloud-Database-Engineer Sample Questions
Exam Way:	Online proctored (remote) or onsite proctored (testing center)
Pre Condition:	No mandatory prerequisites; recommended: 5+ years of overall database and IT experience, including 2 years of hands-on experience with Google Cloud database solutions
Official Syllabus URL:	https://cloud.google.com/learn/certification/cloud-database-engineer

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Google Professional-Cloud-Database-Engineer 認證是為了設計、構建和管理 Google Cloud Platform 上可擴展和可靠的數據庫解決方案的數據庫專業人員而設計的。此認證適用於對數據庫概念有扎實了解且具有數據庫工作經驗，並希望展示其在 Google Cloud 上設計和維護數據庫系統專業知識的個人。

最新的 Google Cloud Certified Professional-Cloud-Database-Engineer 免費考試真題 (Q39-Q44):

問題 #39
You are managing a Cloud SQL for PostgreSQL instance in Google Cloud. You have a primary instance in region 1 and a read replica in region 2. After a failure of region 1, you need to make the Cloud SQL instance available again. You want to minimize data loss and follow Google- recommended practices. What should you do?

A. Check "Lag Bytes" in the monitoring dashboard for the primary instance in the read replica instance. Check the replication status using pg_catalog.pg_last_wal_receive_lsn(). Then, fail over to region 2 by promoting the read replica instance.
B. Check your instance operational log for the automatic failover status. Look for time, type, and status of the operations. If the failover operation is successful, no action is necessary. Otherwise, manually perform gcloud sql instances failover .
C. Restore the Cloud SQL instance from the automatic backups in another zone in region 1.
D. Restore the Cloud SQL instance from the automatic backups in region 3.

答案：A

解題說明：
No need for restores if you have a read replica which you can promote to be the new primary.
Eliminate A and B. Failovers do not happen automatically to read replicas. You have to promote them. Eliminate D. That leaves C which is supported by Google's documentation.
https://cloud.google.com/sql/docs/postgres/replication/cross-region-replicas#disaster_recovery

問題 #40
You are managing a Cloud SQL for MySQL environment in Google Cloud. You have deployed a primary instance in Zone A and a read replica instance in Zone B, both in the same region. You are notified that the replica instance in Zone B was unavailable for 10 minutes. You need to ensure that the read replica instance is still working. What should you do?

A. Start the original primary instance and resume replication.
B. Use the Google Cloud Console or gcloud CLI to manually create a new clone database.
C. Verify that the new replica is created automatically.
D. Use the Google Cloud Console or gcloud CLI to manually create a new failover replica from backup.

答案：C

解題說明：
Recovery Process: Once Zone-B becomes available again, Cloud SQL will initiate the recovery process for the impacted read replica. The recovery process involves the following steps: 1. Synchronization: Cloud SQL will compare the data in the recovered read replica with the primary instance in Zone-A. If there is any data divergence due to the unavailability period, Cloud SQL will synchronize the read replica with the primary instance to ensure data consistency. 2. Catch-up Replication: The recovered read replica will start catching up on the changes that occurred on the primary instance during its unavailability. It will apply the necessary updates from the primary instance's binary logs (binlogs) to bring the replica up to date. 3. Resuming Read Traffic: Once the synchronization and catch-up replication processes are complete, the read replica in Zone-B will resume its normal operation. It will be able to serve read traffic and stay updated with subsequent changes from the primary instance.

問題 #41
Your organization has a security policy to ensure that all Cloud SQL for PostgreSQL databases are secure. You want to protect sensitive data by using a key that meets specific locality or residency requirements. Your organization needs to control the key's lifecycle activities. You need to ensure that data is encrypted at rest and in transit. What should you do?

A. Create the database persistent disk with Google-managed encryption keys.
B. Create the database with Google-managed encryption keys.
C. Create the database persistent disk with customer-managed encryption keys.
D. Create the database with customer-managed encryption keys.

答案：D

解題說明：
https://cloud.google.com/sql/docs/postgres/configure-cmek#createcmekinstance

問題 #42
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 whether your service account has cloudsql.instances.connect permission.
B. Enable the Cloud SQL Admin API.
C. Ensure that you are using an external (public) IP address interface.
D. Check the app.yaml value cloud_sql_instances for a misspelled or incorrect instance connection name.

答案：D

問題 #43
Your organization deployed a new version of a critical application that uses Cloud SQL for MySQL with high availability (HA) and binary logging enabled to store transactional information.
The latest release of the application had an error that caused massive data corruption in your Cloud SQL for MySQL database. You need to minimize data loss. What should you do?

A. Reload the Cloud SQL for MySQL database using the LOAD DATA command to load data from CSV files that were used to initialize the instance.
B. Fail over to the Cloud SQL for MySQL HA instance. Use that instance to recover the transactions that occurred before the corruption.
C. Open the Google Cloud Console, navigate to SQL > Backups, and select the last version of the automated backup before the corruption.
D. Perform a point-in-time recovery of your Cloud SQL for MySQL database, selecting a date and time before the data was corrupted.

答案：D

問題 #44
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