- A
Create a cross-region backup replica with a 7-day retention.
Why wrong: Cross-region replicas provide disaster recovery but do not enable PITR.
- B
Enable WAL archiving and configure backup retention to 7 days using gcloud sql instances patch --backup-retention-days 7.
Correct. WAL archiving is needed for PITR, and backup retention is set via the flag.
- C
Enable binary logging and set backup retention to 7 days.
Why wrong: Binary logging is for MySQL, not PostgreSQL.
- D
Enable automated backups with a 7-day retention; WAL archiving is automatic.
Why wrong: WAL archiving is not automatic; it must be explicitly enabled via the flag.
Question 695 of 1,000
PCDOE Manage Database Solutions Practice Question
This PCDOE practice question tests your understanding of manage database solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is running a Cloud SQL for PostgreSQL instance for an e-commerce application. They need to enable point-in-time recovery (PITR) with a 7-day retention period. What configuration steps must be taken?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable WAL archiving and configure backup retention to 7 days using gcloud sql instances patch --backup-retention-days 7.
Option B is correct because Cloud SQL for PostgreSQL uses Write-Ahead Log (WAL) archiving to enable point-in-time recovery (PITR). You must enable automated backups (which automatically enables WAL archiving) and then set the backup retention period to 7 days using the `gcloud sql instances patch --backup-retention-days 7` command. This ensures that WAL logs are retained for the specified duration, allowing PITR within that window.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a cross-region backup replica with a 7-day retention.
Why it's wrong here
Cross-region replicas provide disaster recovery but do not enable PITR.
- ✓
Enable WAL archiving and configure backup retention to 7 days using gcloud sql instances patch --backup-retention-days 7.
Why this is correct
Correct. WAL archiving is needed for PITR, and backup retention is set via the flag.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable binary logging and set backup retention to 7 days.
Why it's wrong here
Binary logging is for MySQL, not PostgreSQL.
- ✗
Enable automated backups with a 7-day retention; WAL archiving is automatic.
Why it's wrong here
WAL archiving is not automatic; it must be explicitly enabled via the flag.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between database-specific recovery mechanisms—candidates mistakenly apply MySQL binary logging concepts to PostgreSQL, where WAL archiving is the correct mechanism, and overlook the explicit command needed to set the retention period.
Detailed technical explanation
How to think about this question
In Cloud SQL for PostgreSQL, PITR relies on continuous WAL archiving, which captures every transaction log change. The `backup-retention-days` setting controls how long both the daily automated backups and the associated WAL logs are retained; if you set it to 7 days, you can restore to any point within the last 7 days. A subtle behavior is that the retention period applies to the entire backup chain, so if you reduce the retention period, older WAL logs are automatically purged, potentially breaking PITR for earlier points.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Manage Database Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this PCDOE question test?
Manage Database Solutions — This question tests Manage Database Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable WAL archiving and configure backup retention to 7 days using gcloud sql instances patch --backup-retention-days 7. — Option B is correct because Cloud SQL for PostgreSQL uses Write-Ahead Log (WAL) archiving to enable point-in-time recovery (PITR). You must enable automated backups (which automatically enables WAL archiving) and then set the backup retention period to 7 days using the `gcloud sql instances patch --backup-retention-days 7` command. This ensures that WAL logs are retained for the specified duration, allowing PITR within that window.
What should I do if I get this PCDOE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCDOE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCDOE exam.
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