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Ensure solution and operations reliability →mediumMultiple ChoiceObjective-mapped

Google PCA Ensure solution and operations reliability Practice Question

This PCA practice question tests your understanding of ensure solution and operations reliability. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

Exhibit

Refer to the exhibit.

{
  "kind": "storage#bucket",
  "id": "my-important-bucket",
  "name": "my-important-bucket",
  "retentionPolicy": {
    "retentionPeriod": "2592000",
    "effectiveTime": "2024-01-01T00:00:00Z",
    "isLocked": true
  },
  "versioning": {
    "enabled": true
  }
}

The exhibit shows a Cloud Storage bucket configuration. What does this configuration ensure?

Question 1mediummultiple choice
Full question →

Exhibit

Refer to the exhibit.

{
  "kind": "storage#bucket",
  "id": "my-important-bucket",
  "name": "my-important-bucket",
  "retentionPolicy": {
    "retentionPeriod": "2592000",
    "effectiveTime": "2024-01-01T00:00:00Z",
    "isLocked": true
  },
  "versioning": {
    "enabled": true
  }
}

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

✓

Objects can only be permanently deleted after the retention period expires.

The exhibit shows a bucket configured with a retention policy. When a retention policy is set on a Cloud Storage bucket, objects cannot be deleted or overwritten until the retention period expires. This ensures that objects can only be permanently deleted after the retention period ends, which is exactly what option C describes.

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.

  • ✗

    Older versions of objects are automatically transferred to a different storage class.

    Why it's wrong here

    Versioning keeps old versions but does not change their storage class automatically except with lifecycle rules.

  • ✗

    Data is replicated to another region for disaster recovery.

    Why it's wrong here

    The exhibit does not show replication; versioning and retention are not replication.

  • ✓

    Objects can only be permanently deleted after the retention period expires.

    Why this is correct

    A locked retention policy prevents permanent deletion before the retention period ends. Versioning retains noncurrent versions.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Objects older than 30 days will be automatically deleted.

    Why it's wrong here

    Retention policy prevents deletion; it doesn't delete objects.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse retention policies with lifecycle management rules, mistakenly thinking retention policies automatically delete or transition objects, when in fact they only prevent deletion until the retention period expires.

Trap categories for this question

  • Command / output trap

    The exhibit does not show replication; versioning and retention are not replication.

Detailed technical explanation

How to think about this question

Under the hood, a retention policy uses a bucket-level lock that sets a retention period in seconds. Once the policy is locked (using Bucket Lock), the retention period cannot be shortened or removed, ensuring compliance with data retention regulations. In a real-world scenario, this is critical for industries like healthcare or finance where data must be kept for a minimum duration before any deletion is allowed.

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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

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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FAQ

Questions learners often ask

What does this PCA question test?

Ensure solution and operations reliability — This question tests Ensure solution and operations reliability — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Objects can only be permanently deleted after the retention period expires. — The exhibit shows a bucket configured with a retention policy. When a retention policy is set on a Cloud Storage bucket, objects cannot be deleted or overwritten until the retention period expires. This ensures that objects can only be permanently deleted after the retention period ends, which is exactly what option C describes.

What should I do if I get this PCA 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 25, 2026

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This PCA 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 PCA exam.