- A
Annotate the KSA with iam.gke.io/gcp-service-account=GCP_SA_EMAIL. No further steps are needed.
Why wrong: The annotation is necessary, but the IAM binding is also required to authorize the impersonation.
- B
Create a JSON key for the GCP SA and store it as a Kubernetes secret, then mount it into the pods.
Why wrong: Using service account keys is discouraged and circumvents Workload Identity.
- C
Grant the GCP SA the role roles/iam.serviceAccountUser on the KSA.
Why wrong: The role is reversed; the KSA needs the workloadIdentityUser role on the GCP SA, not the other way around.
- D
Grant the KSA the role iam.workloadIdentityUser on the GCP SA by running: gcloud iam service-accounts add-iam-policy-binding GCP_SA_EMAIL --member=serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME] --role=roles/iam.workloadIdentityUser
This is the correct IAM binding to allow the KSA to impersonate the GCP SA.
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 company has a GKE cluster with a Kubernetes Service Account (KSA) that needs to access Cloud Storage. They want to bind the KSA to a Google Cloud service account (GCP SA) so that pods running under the KSA inherit the GCP SA's permissions. They have enabled Workload Identity on the cluster. What is the correct step to bind the KSA to the GCP SA?
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
Grant the KSA the role iam.workloadIdentityUser on the GCP SA by running: gcloud iam service-accounts add-iam-policy-binding GCP_SA_EMAIL --member=serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME] --role=roles/iam.workloadIdentityUser
The correct binding is to grant the 'iam.workloadIdentityUser' role on the GCP SA to the KSA's identity. The KSA identity is represented in IAM as the principal 'serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME]'. This allows the KSA to impersonate the GCP SA. Creating a service account key defeats the purpose of Workload Identity. Adding an annotation to the KSA is necessary but not sufficient; the IAM binding is also required.
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.
- ✗
Annotate the KSA with iam.gke.io/gcp-service-account=GCP_SA_EMAIL. No further steps are needed.
Why it's wrong here
The annotation is necessary, but the IAM binding is also required to authorize the impersonation.
- ✗
Create a JSON key for the GCP SA and store it as a Kubernetes secret, then mount it into the pods.
Why it's wrong here
Using service account keys is discouraged and circumvents Workload Identity.
- ✗
Grant the GCP SA the role roles/iam.serviceAccountUser on the KSA.
Why it's wrong here
The role is reversed; the KSA needs the workloadIdentityUser role on the GCP SA, not the other way around.
- ✓
Grant the KSA the role iam.workloadIdentityUser on the GCP SA by running: gcloud iam service-accounts add-iam-policy-binding GCP_SA_EMAIL --member=serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME] --role=roles/iam.workloadIdentityUser
Why this is correct
This is the correct IAM binding to allow the KSA to impersonate the GCP SA.
Related concept
Read the scenario before looking for a memorised answer.
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 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 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.
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Configuring Access Within a Cloud Solution Environment — study guide chapter
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FAQ
Questions learners often ask
What does this PCSE question test?
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: Grant the KSA the role iam.workloadIdentityUser on the GCP SA by running: gcloud iam service-accounts add-iam-policy-binding GCP_SA_EMAIL --member=serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME] --role=roles/iam.workloadIdentityUser — The correct binding is to grant the 'iam.workloadIdentityUser' role on the GCP SA to the KSA's identity. The KSA identity is represented in IAM as the principal 'serviceAccount:PROJECT_ID.svc.id.goog[NAMESPACE/KSA_NAME]'. This allows the KSA to impersonate the GCP SA. Creating a service account key defeats the purpose of Workload Identity. Adding an annotation to the KSA is necessary but not sufficient; the IAM binding is also required.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 2026
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.
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