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ACE Practice Question: A team's Cloud SQL for PostgreSQL instance is…
This ACE practice question tests your understanding of a team's cloud sql for postgresql instance is…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 team's Cloud SQL for PostgreSQL instance is running out of disk space. Automated storage increase is disabled. A monitoring alert fires at 90% disk usage. What is the fastest safe action to increase storage?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Delete old records from the database to free space — no instance changes needed
Deleting records frees logical space that PostgreSQL must then VACUUM to reclaim — this is slow and risky for critical production data. Increasing storage is the immediate fix.
B
Best answer
Increase storage capacity using `gcloud sql instances patch --storage-size=[NEW_SIZE]` without downtime
Cloud SQL supports online storage capacity increases via `gcloud sql instances patch --storage-size=[GB]`. The operation completes without instance restart or downtime.
C
Distractor review
Enable automatic storage increase and wait — Cloud SQL will expand the disk retroactively
Enabling automatic storage increase prevents future alerts but doesn't immediately expand the current disk if already at 90% — a manual increase is still needed for the current situation.
D
Distractor review
Create a new larger Cloud SQL instance and migrate data with Cloud Database Migration Service
Database migration is a multi-hour process — not the fastest response to an imminent disk-full emergency. In-place storage expansion is faster and simpler.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Related practice questions
Related ACE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
What is the correct order of the Google Cloud resource hierarchy from highest to lowest level?
Question 2
A compliance archive stores legal documents accessed at most once per quarter. Which Cloud Storage class minimizes storage cost while meeting that access pattern?
Question 3
Which gcloud command creates a Compute Engine VM named 'web-01' using the e2-medium machine type in zone us-central1-a?
Question 4
A team wants to receive an email alert when the average CPU utilization of VMs in a managed instance group exceeds 80% for more than 5 minutes. What should they create in Cloud Monitoring?
Question 5
A junior developer needs read-only access to all GCP resources in a project. Which IAM role grants the minimum permissions required?
Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
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FAQ
Questions learners often ask
What does this ACE question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Increase storage capacity using `gcloud sql instances patch --storage-size=[NEW_SIZE]` without downtime — Cloud SQL supports increasing the storage capacity of an instance without downtime through the `gcloud sql instances patch` command or the Console. Storage increases take effect immediately. Note: Cloud SQL does not support decreasing storage capacity once increased.
What should I do if I get this ACE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related ACE NAT questions on configuration and troubleshooting.
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This ACE 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 ACE exam.