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ACE Practice Question: A GKE Pod needs to call the Cloud Storage API
This ACE practice question tests your understanding of a gke pod needs to call the cloud storage api. 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 GKE Pod needs to call the Cloud Storage API. The team wants to avoid creating and managing service account key files. What is the recommended approach?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Enable Workload Identity on the GKE cluster and bind a Kubernetes ServiceAccount to a GCP IAM ServiceAccount
Workload Identity allows Pods to authenticate to GCP APIs through the GKE metadata server, completely eliminating the need for service account key files.
B
Distractor review
Rely on the GKE node's Compute Engine service account for all Pod authentication
Using the node's service account grants all Pods on the node identical GCP permissions — this violates the principle of least privilege.
C
Distractor review
Grant the GKE node pool's service account the Storage Admin role to cover all Pod needs
Granting broad roles to the node service account over-provisions permissions for all Pods on those nodes, violating least privilege.
D
Distractor review
Mount a service account JSON key file as a Kubernetes Secret and set GOOGLE_APPLICATION_CREDENTIALS
This works but requires managing key files — rotation, secure storage, and risk of key leakage. It's the pattern Workload Identity is designed to replace.
Common exam trap
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Technical deep dive
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
- Authentication checks who the user is.
- Authorization controls what the user is allowed to do after login.
- Privilege levels affect access to EXEC and configuration commands.
- AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
- Do not assume successful login means full administrative access.
- Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
- Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Related practice questions
Related ACE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
What is the correct order of the Google Cloud resource hierarchy from highest to lowest level?
Question 2
A compliance archive stores legal documents accessed at most once per quarter. Which Cloud Storage class minimizes storage cost while meeting that access pattern?
Question 3
Which gcloud command creates a Compute Engine VM named 'web-01' using the e2-medium machine type in zone us-central1-a?
Question 4
A team wants to receive an email alert when the average CPU utilization of VMs in a managed instance group exceeds 80% for more than 5 minutes. What should they create in Cloud Monitoring?
Question 5
A junior developer needs read-only access to all GCP resources in a project. Which IAM role grants the minimum permissions required?
Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
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FAQ
Questions learners often ask
What does this ACE question test?
Authentication checks who the user is.
What is the correct answer to this question?
The correct answer is: Enable Workload Identity on the GKE cluster and bind a Kubernetes ServiceAccount to a GCP IAM ServiceAccount — Workload Identity for GKE allows a Kubernetes ServiceAccount to impersonate a GCP IAM ServiceAccount, enabling Pods to authenticate to GCP APIs using the cluster's built-in metadata server — no key files needed. Using the node's service account grants all Pods the same permissions, violating least privilege.
What should I do if I get this ACE question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related ACE questions on access control and AAA configuration.
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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.