The correct command is `gcloud projects remove-iam-policy-binding PROJECT_ID --member serviceAccount:SA_EMAIL --role roles/editor`. This command is the precise tool for removing an IAM role binding from a service account at the project level because it targets the project’s IAM policy and removes the specified role for the given member, using the `serviceAccount:` prefix to identify the principal. On the Google Professional Cloud Security Engineer exam, this tests your understanding of least privilege and IAM policy management, often appearing in scenarios where excessive permissions must be revoked. A common trap is confusing this with `gcloud iam service-accounts remove-iam-policy-binding`, which operates on a service account’s own policy, not the project-level binding. Remember the mnemonic: "Project first, then member, then role" — always start with `gcloud projects` when removing a role from a service account at the project scope.
PCSE Practice Question: Configuring access within a cloud solution environment
This PCSE practice question tests your understanding of configuring access within a cloud solution environment. 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 DevOps engineer accidentally assigned the role roles/editor to a service account used by a backend service. This gives the service account excessive permissions. The engineer wants to remove the role from the service account. What is the correct command?
Option A is correct because `gcloud projects remove-iam-policy-binding` is the specific command to remove an IAM role binding from a project-level policy for a given member (service account). The syntax correctly includes the `--member` flag with the `serviceAccount:` prefix and the `--role` flag specifying `roles/editor`, which removes the excessive Editor role from the service account.
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.
This would overwrite the entire IAM policy, which is more invasive and not the simplest solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the distinction between project-level IAM commands (`gcloud projects`) and service account-specific commands, leading candidates to incorrectly choose non-existent or misnamed subcommands like `gcloud iam service-accounts remove-role`.
Trap categories for this question
Command / output trap
This is not a valid gcloud command syntax.
Detailed technical explanation
How to think about this question
Under the hood, IAM policies are collections of bindings that map a role to a set of members. The `remove-iam-policy-binding` command reads the current policy, removes the specified binding (if it exists), and writes the updated policy back. This is a conditional update that avoids overwriting other bindings, unlike `set-iam-policy` which requires the full policy definition. In real-world scenarios, using `set-iam-policy` for a single change can accidentally remove other permissions if the YAML file is incomplete.
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.
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.
Configuring access within a cloud solution environment — This question tests Configuring access within a cloud solution environment — 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_ID --member serviceAccount:SA_EMAIL --role roles/editor — Option A is correct because `gcloud projects remove-iam-policy-binding` is the specific command to remove an IAM role binding from a project-level policy for a given member (service account). The syntax correctly includes the `--member` flag with the `serviceAccount:` prefix and the `--role` flag specifying `roles/editor`, which removes the excessive Editor role from the service account.
What should I do if I get this PCSE 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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Question Discussion
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