- A
Write a Cloud Function that runs daily, lists objects, and deletes or moves old ones.
Why wrong: Cloud Functions can implement this logic but it's custom code that requires maintenance. Object Lifecycle Management is the purpose-built, managed, zero-code solution.
- B
Configure Object Lifecycle Management rules on the bucket with `SetStorageClass` and `Delete` actions.
OLM supports multiple rules per bucket. SetStorageClass at age 7 moves objects to Nearline; Delete at age 30 removes them. This is fully managed with no code required.
- C
Set a bucket-level retention policy of 30 days and manually change storage classes.
Why wrong: Retention policies prevent deletion before the retention period expires — the opposite of what's needed. They also don't manage storage class transitions.
- D
Use Cloud Scheduler to trigger `gsutil` commands that move and delete old objects.
Why wrong: Cloud Scheduler + gsutil is a valid workaround but operationally heavier than the built-in OLM feature.
Quick Answer
The answer is Object Lifecycle Management rules configured on the bucket with `SetStorageClass` and `Delete` actions. This is correct because Cloud Storage Lifecycle Management allows you to define a single rule with multiple conditions and actions, enabling you to automate both storage class transitions and object deletion based on age. For your scenario, you set a condition for objects older than 7 days to transition to Nearline storage via `SetStorageClass`, and a separate condition for objects older than 30 days to trigger the `Delete` action—all within one configuration. On the Google Associate Cloud Engineer exam, this tests your understanding of cost optimization through automated lifecycle policies, a common scenario for backup management. A frequent trap is thinking you need separate rules or custom scripts, but a single rule handles both requirements. Memory tip: think "age-based actions"—younger objects move to cheaper storage, older objects vanish, all in one lifecycle policy.
Google ACE Practice Question: Ensuring successful operation of a cloud solution
This ACE practice question tests your understanding of ensuring successful operation of a cloud solution. 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.
Your organization uses Cloud Storage for storing backups. You want to automatically delete backup objects that are older than 30 days to control costs. You also want objects between 7 and 30 days old to use Nearline storage class for lower cost. Which Cloud Storage feature manages both requirements in a single configuration?
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
Configure Object Lifecycle Management rules on the bucket with `SetStorageClass` and `Delete` actions.
Option B is correct because Object Lifecycle Management rules in Cloud Storage allow you to define conditions (e.g., object age) and actions (e.g., SetStorageClass to Nearline, Delete) in a single configuration. This automates both the transition of objects aged 7–30 days to Nearline storage and the deletion of objects older than 30 days, without custom code or manual intervention.
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.
- ✗
Write a Cloud Function that runs daily, lists objects, and deletes or moves old ones.
Why it's wrong here
Cloud Functions can implement this logic but it's custom code that requires maintenance. Object Lifecycle Management is the purpose-built, managed, zero-code solution.
- ✓
Configure Object Lifecycle Management rules on the bucket with `SetStorageClass` and `Delete` actions.
Why this is correct
OLM supports multiple rules per bucket. SetStorageClass at age 7 moves objects to Nearline; Delete at age 30 removes them. This is fully managed with no code required.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set a bucket-level retention policy of 30 days and manually change storage classes.
Why it's wrong here
Retention policies prevent deletion before the retention period expires — the opposite of what's needed. They also don't manage storage class transitions.
- ✗
Use Cloud Scheduler to trigger `gsutil` commands that move and delete old objects.
Why it's wrong here
Cloud Scheduler + gsutil is a valid workaround but operationally heavier than the built-in OLM feature.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that custom code or external schedulers are required for automated object management, when in fact Cloud Storage's built-in lifecycle management can handle both storage class transitions and deletions in a single, cost-effective configuration.
Detailed technical explanation
How to think about this question
Object Lifecycle Management rules are evaluated asynchronously, typically within 24 hours of the condition being met, so objects may not be deleted or transitioned exactly at the 30-day or 7-day mark. The SetStorageClass action changes the storage class from Standard to Nearline, which has a 30-day minimum storage duration; deleting an object before 30 days incurs an early deletion fee, but lifecycle rules automatically handle this cost consideration. In a real-world scenario, you can combine multiple conditions and actions in a single rule, such as using an AND condition to target objects older than 7 days but younger than 30 days for storage class change.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this ACE question test?
Ensuring successful operation of a cloud solution — This question tests Ensuring successful operation of a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure Object Lifecycle Management rules on the bucket with `SetStorageClass` and `Delete` actions. — Option B is correct because Object Lifecycle Management rules in Cloud Storage allow you to define conditions (e.g., object age) and actions (e.g., SetStorageClass to Nearline, Delete) in a single configuration. This automates both the transition of objects aged 7–30 days to Nearline storage and the deletion of objects older than 30 days, without custom code or manual intervention.
What should I do if I get this ACE 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.
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Last reviewed: Jun 30, 2026
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