Google PCA Manage implementation of cloud architecture Practice Question
This PCA practice question tests your understanding of manage implementation of cloud architecture. 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.
Which TWO methods can be used to provide secure access to a private Google Kubernetes Engine (GKE) cluster from the internet? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Cloud VPN to connect from an on-premises network that has internet access.
Option C is correct because Cloud VPN establishes an encrypted tunnel (using IPsec) from an on-premises network to a VPC in Google Cloud, allowing secure access to a private GKE cluster master endpoint without exposing it to the public internet. Option E is correct because Identity-Aware Proxy (IAP) with TCP forwarding enables authenticated and authorized access to the private cluster master endpoint via a bastion-like tunnel, without requiring a public IP on the master or a VPN.
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.
✗
Expose the cluster via an internal load balancer.
Why it's wrong here
Internal LB is only accessible from within VPC.
✗
Configure a Cloud NAT to allow inbound connections from the internet.
Read the scenario before looking for a memorised answer.
✗
Assign a public IP address to the cluster master endpoint.
Why it's wrong here
Defeats the purpose of private cluster.
✓
Use Identity-Aware Proxy (IAP) with TCP forwarding to access the cluster master.
Why this is correct
IAP TCP forwarding allows authorized users to connect to private master via SSH without public IP.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Cloud NAT (outbound-only) with a solution for inbound internet access, or mistakenly think an internal load balancer can provide internet-facing access to a private cluster.
Detailed technical explanation
How to think about this question
A private GKE cluster master endpoint has a private IP address in the VPC, and by default it is not reachable from the internet. Cloud VPN uses IPsec tunnels (IKEv1/IKEv2) to connect on-premises networks to the VPC, enabling routing to the private endpoint. IAP TCP forwarding uses a secure tunnel (via the `gcloud compute start-iap-tunnel` command) that authenticates the user through Google's identity layer and authorizes access based on IAM roles, forwarding TCP traffic to the private master endpoint without exposing any public IP.
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 implementation of cloud architecture — This question tests Manage implementation of cloud architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Cloud VPN to connect from an on-premises network that has internet access. — Option C is correct because Cloud VPN establishes an encrypted tunnel (using IPsec) from an on-premises network to a VPC in Google Cloud, allowing secure access to a private GKE cluster master endpoint without exposing it to the public internet. Option E is correct because Identity-Aware Proxy (IAP) with TCP forwarding enables authenticated and authorized access to the private cluster master endpoint via a bastion-like tunnel, without requiring a public IP on the master or a VPN.
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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