The answer is to disable the compromised service account. Disabling the account immediately revokes all access across every project and resource without altering the underlying IAM policies, which is critical for containing a breach while preserving the ability to re-enable the account after investigation. This tests your understanding of the principle of least privilege and incident response in Google Cloud, where the fastest containment action is to disable the identity itself rather than hunting down individual roles. On the Google Professional Cloud Security Engineer exam, a common trap is choosing to delete the service account or rotate keys—deletion is irreversible and breaks dependencies, while key rotation still allows VM-instance metadata-based access. The memory tip is: disable first, delete later; think of it as a circuit breaker that cuts power instantly without rewiring the house.
PCSE Practice Question: Managing operations in a cloud solution environment
This PCSE practice question tests your understanding of managing operations in a cloud solution environment. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
During a security incident, a security engineer needs to revoke a compromised service account's access across all resources immediately. However, the service account has many roles across different projects. What is the most effective immediate step?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Disable the service account.
Option D is correct because disabling the service account immediately revokes all access without removing IAM policies, allowing quick recovery later. Option A is irreversible and may break dependencies. Option B only prevents key-based authentication; the account can still be used from VM instances. Option C is time-consuming and error-prone.
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.
✗
Remove all IAM policies that include the service account.
Why it's wrong here
Removing policies is slow and may not cover all roles across projects.
✓
Disable the service account.
Why this is correct
Disabling the service account instantly revokes all access while preserving policies.
Clue confirmation
The clue word "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable the service account key.
Why it's wrong here
Disabling keys does not prevent access via other methods such as VM attached service accounts.
✗
Delete the service account from the project.
Why it's wrong here
Deleting is irreversible and may impact services that depend on the account.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 PCSE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Managing operations in a cloud solution environment — This question tests Managing operations in 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: Disable the service account. — Option D is correct because disabling the service account immediately revokes all access without removing IAM policies, allowing quick recovery later. Option A is irreversible and may break dependencies. Option B only prevents key-based authentication; the account can still be used from VM instances. Option C is time-consuming and error-prone.
What should I do if I get this PCSE question wrong?
Identify which PCSE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "immediately / without restart". Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This PCSE 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 PCSE exam.
Question Discussion
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