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Design and plan a cloud solution architecture →mediumMultiple ChoiceObjective-mapped

Google PCA Design and plan a cloud solution architecture Practice Question

This PCA practice question tests your understanding of design and plan a cloud solution architecture. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.

{
  "bindings": [
    {
      "role": "roles/storage.objectViewer",
      "members": [
        "user:admin@example.com"
      ]
    },
    {
      "role": "roles/storage.objectAdmin",
      "members": [
        "serviceAccount:my-sa@project.iam.gserviceaccount.com"
      ]
    }
  ]
}

The exhibit shows a Cloud Storage bucket IAM policy. A developer (admin@example.com) wants to upload a file to the bucket but gets a permission denied error. What is the most likely reason?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "most likely"

    Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1mediummultiple choice
Full question →

Exhibit

Refer to the exhibit.

{
  "bindings": [
    {
      "role": "roles/storage.objectViewer",
      "members": [
        "user:admin@example.com"
      ]
    },
    {
      "role": "roles/storage.objectAdmin",
      "members": [
        "serviceAccount:my-sa@project.iam.gserviceaccount.com"
      ]
    }
  ]
}

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

✓

The developer is assigned only the objectViewer role

Option C is correct because the developer only has roles/storage.objectViewer (read-only), not write access. Option A is wrong because there is no explicit deny. Option B is wrong because the service account has admin, but that doesn't affect the user. Option D is wrong because the user is included.

Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    An organization policy denies all write operations

    Why it's wrong here

    No evidence of org policy.

  • ✗

    The developer is not a member of the project

    Why it's wrong here

    The user is explicitly listed.

  • ✗

    The service account my-sa overrides the developer's permissions

    Why it's wrong here

    Service accounts are separate.

  • ✓

    The developer is assigned only the objectViewer role

    Why this is correct

    objectViewer cannot write.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    Standard ACLs match source addresses.

Common exam traps

Common exam trap: ACLs stop at the first match

ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.

Detailed technical explanation

How to think about this question

ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.

KKey Concepts to Remember

  • Standard ACLs match source addresses.
  • Extended ACLs can match source, destination, protocol and ports.
  • The first matching ACL entry is used.
  • There is usually an implicit deny at the end.

TExam Day Tips

  • Check inbound versus outbound direction.
  • Read the ACL from top to bottom.
  • Look for a broader permit or deny above the intended line.

Key takeaway

ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

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.

Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCA ACL questions on filtering logic and placement.

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FAQ

Questions learners often ask

What does this PCA question test?

Design and plan a cloud solution architecture — This question tests Design and plan a cloud solution architecture — Standard ACLs match source addresses..

What is the correct answer to this question?

The correct answer is: The developer is assigned only the objectViewer role — Option C is correct because the developer only has roles/storage.objectViewer (read-only), not write access. Option A is wrong because there is no explicit deny. Option B is wrong because the service account has admin, but that doesn't affect the user. Option D is wrong because the user is included.

What should I do if I get this PCA question wrong?

Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCA ACL questions on filtering logic and placement.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Standard ACLs match source addresses.

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Last reviewed: Jun 24, 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.