Google PCA Manage and provision cloud infrastructure Practice Question
This PCA practice question tests your understanding of manage and provision cloud infrastructure. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Which THREE are required to configure Workload Identity for a GKE cluster? (Choose 3)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Google Cloud service account
Option A is correct because a Google Cloud service account (GSA) is required to authenticate to Google Cloud APIs from within GKE. Workload Identity maps a Kubernetes service account (KSA) to a GSA, allowing pods to inherit the GSA's IAM permissions without managing static keys. The GSA must be created first to define the identity that workloads will assume.
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.
✓
Create a Google Cloud service account
Why this is correct
The GSA is used to grant permissions to the Kubernetes service account.
Related concept
Read the scenario before looking for a memorised answer.
✓
Create a Kubernetes service account
Why this is correct
The KSA represents the application's identity in the cluster.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable Workload Identity on the GKE cluster
Why this is correct
Workload Identity must be enabled at cluster creation or update.
Related concept
Read the scenario before looking for a memorised answer.
✗
Bind the Kubernetes service account to the Google Cloud service account using a Kubernetes RoleBinding
Why it's wrong here
The binding must be an IAM policy binding, not a Kubernetes RoleBinding.
✗
Use a node pool that has Workload Identity enabled
Why it's wrong here
Workload Identity can be used with any node pool if the cluster is enabled.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the distinction between Kubernetes RoleBinding (for RBAC) and IAM policy binding (for Workload Identity), leading candidates to incorrectly select a RoleBinding as the binding mechanism.
Detailed technical explanation
How to think about this question
Workload Identity leverages the GKE Metadata Server, which intercepts token requests from pods and exchanges the pod's Kubernetes service account token (a signed JWT) for a Google Cloud access token via the IAM `GenerateAccessToken` API. The IAM binding between the KSA and GSA is configured using the `--member` flag with the format `serviceAccount:PROJECT.svc.id.goog[NAMESPACE/KSA_NAME]`, which is a unique workload identity pool principal. This eliminates the need for long-lived service account keys and reduces credential exposure.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Google Cloud service account — Option A is correct because a Google Cloud service account (GSA) is required to authenticate to Google Cloud APIs from within GKE. Workload Identity maps a Kubernetes service account (KSA) to a GSA, allowing pods to inherit the GSA's IAM permissions without managing static keys. The GSA must be created first to define the identity that workloads will assume.
What should I do if I get this PCA 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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