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gcloud projects remove-iam-policy-binding: Remove a Single Binding

This ACE practice question tests your understanding of ace exam topics. 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.

A developer accidentally grants the Owner role to a test service account on the production project. The team wants to remove only this specific IAM binding without affecting other members' access. Which gcloud command achieves this?

Quick Answer

The answer is `gcloud projects remove-iam-policy-binding [PROJECT] --member=serviceAccount:[SA_EMAIL] --role=roles/owner`. This command is correct because it removes a single IAM binding—a specific member-role pair—from a project’s policy without altering any other bindings, making it the precise tool for surgically revoking the Owner role from that test service account while leaving all other members’ access untouched. On the Google Associate Cloud Engineer exam, this scenario tests your understanding of IAM policy structure: a policy is a collection of bindings, and this command modifies only the targeted entry, unlike `set-iam-policy` which overwrites the entire policy. A common trap is confusing this with `gcloud iam service-accounts disable`, which deactivates the account but does not remove the role binding. Memory tip: think “remove-iam-policy-binding” as a scalpel—it cuts out one specific member-role pair, leaving the rest of the policy intact.

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

✓

gcloud projects remove-iam-policy-binding [PROJECT] --member=serviceAccount:[SA_EMAIL] --role=roles/owner

Option B is correct because `gcloud projects remove-iam-policy-binding` is the precise command to remove a single IAM binding (member-role pair) from a project's policy without affecting other bindings. It takes the project ID, member (service account email), and role as parameters, ensuring only the specified binding is removed. This command modifies the existing policy by removing only that specific entry, leaving all other IAM bindings intact.

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.

  • ✗

    gcloud projects set-iam-policy [PROJECT] --member=serviceAccount:[SA] --role=roles/owner

    Why it's wrong here

    `set-iam-policy` replaces the entire IAM policy with a new one — not for removing a single binding. This would erase all other IAM bindings.

  • ✓

    gcloud projects remove-iam-policy-binding [PROJECT] --member=serviceAccount:[SA_EMAIL] --role=roles/owner

    Why this is correct

    `remove-iam-policy-binding` removes the specified member+role binding atomically without affecting any other bindings in the policy.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    gcloud iam remove-binding --project=[PROJECT] --member=[SA] --role=owner

    Why it's wrong here

    `gcloud iam remove-binding` is not a valid command. Use `gcloud projects remove-iam-policy-binding`.

  • ✗

    gcloud projects delete-member [PROJECT] --member=serviceAccount:[SA_EMAIL]

    Why it's wrong here

    `delete-member` is not a valid gcloud command for IAM management.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Google Cloud often tests the distinction between commands that modify the entire policy (`set-iam-policy`) versus those that surgically remove a single binding (`remove-iam-policy-binding`), and candidates may confuse the valid command syntax or assume a generic `remove-binding` subcommand exists.

Trap categories for this question

  • Command / output trap

    `gcloud iam remove-binding` is not a valid command. Use `gcloud projects remove-iam-policy-binding`.

Detailed technical explanation

How to think about this question

Under the hood, `gcloud projects remove-iam-policy-binding` uses the IAM API's `setIamPolicy` method by first reading the current policy, removing the specified binding from the `bindings` array, and then writing the modified policy back. This ensures atomicity and avoids race conditions when multiple changes are made. In real-world scenarios, this command is critical for incident response when a misconfigured role assignment (like Owner) needs to be revoked quickly without disrupting other service accounts or users.

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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

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FAQ

Questions learners often ask

What does this ACE question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: gcloud projects remove-iam-policy-binding [PROJECT] --member=serviceAccount:[SA_EMAIL] --role=roles/owner — Option B is correct because `gcloud projects remove-iam-policy-binding` is the precise command to remove a single IAM binding (member-role pair) from a project's policy without affecting other bindings. It takes the project ID, member (service account email), and role as parameters, ensuring only the specified binding is removed. This command modifies the existing policy by removing only that specific entry, leaving all other IAM bindings intact.

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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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.