- A
Configure Cloud Load Balancing with a Google-managed SSL certificate and update the DNS to point to the load balancer IP.
Why wrong: This changes the ingress architecture and incurs additional costs for the load balancer.
- B
Deploy cert-manager on the GKE cluster and configure it with an Issuer or ClusterIssuer to automatically obtain and renew certificates from Let's Encrypt.
cert-manager fully automates certificate lifecycle and stores certificates as Kubernetes secrets, matching the existing architecture.
- C
Set up Cloud DNS to automatically respond to ACME HTTP-01 challenges and configure the ingress to use certificates from a public CA.
Why wrong: Cloud DNS alone does not automate certificate renewal; the certificates still need to be obtained and stored manually.
- D
Store the certificate and private key in Cloud Secret Manager and configure the ingress to reference the secrets via the Secret Manager CSI driver.
Why wrong: This only stores certificates but does not automate renewal; the certificates still must be obtained and rotated manually.
Quick Answer
The correct answer is to deploy cert-manager on the GKE cluster and configure it with an Issuer or ClusterIssuer to automatically obtain and renew certificates from Let's Encrypt. This solution directly addresses the need for automating TLS certificate renewal on GKE ingress by leveraging cert-manager, a native Kubernetes add-on that handles the full lifecycle of certificates from public Certificate Authorities like Let's Encrypt. It integrates seamlessly with GKE Ingress using ACME HTTP-01 or DNS-01 challenges, requiring no changes to the existing architecture and incurring no additional cloud costs since it runs entirely within the cluster. On the Google Professional Cloud Security Engineer exam, this scenario tests your understanding of automated certificate management in Kubernetes environments, often contrasting cert-manager with manual secret updates or external load balancer solutions. A common trap is to suggest using Google-managed certificates, which are limited to certain load balancers and may not support custom domains with ACME challenges as flexibly. Memory tip: think of cert-manager as the “set-and-forget” mechanic for TLS—once you issue the Issuer, the certificates renew themselves.
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.
Your company runs a production application on Google Kubernetes Engine (GKE) with a Regional cluster. The application uses a custom domain with TLS certificates that are stored as Kubernetes secrets and mounted into the ingress. The certificates expire every 90 days and are currently renewed manually by a DevOps engineer. Last week, the certificate expired, causing an outage until it was renewed. Management requires an automated solution to renew certificates before expiration. The team wants to minimize changes to the existing architecture and avoid additional costs. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Deploy cert-manager on the GKE cluster and configure it with an Issuer or ClusterIssuer to automatically obtain and renew certificates from Let's Encrypt.
Option B is correct because cert-manager is a native Kubernetes add-on that automates the lifecycle of TLS certificates from public CAs like Let's Encrypt. It integrates directly with GKE Ingress and can handle ACME HTTP-01 or DNS-01 challenges without altering the existing architecture or incurring additional cloud costs, as it runs within the cluster.
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.
- ✗
Configure Cloud Load Balancing with a Google-managed SSL certificate and update the DNS to point to the load balancer IP.
Why it's wrong here
This changes the ingress architecture and incurs additional costs for the load balancer.
- ✓
Deploy cert-manager on the GKE cluster and configure it with an Issuer or ClusterIssuer to automatically obtain and renew certificates from Let's Encrypt.
Why this is correct
cert-manager fully automates certificate lifecycle and stores certificates as Kubernetes secrets, matching the existing architecture.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set up Cloud DNS to automatically respond to ACME HTTP-01 challenges and configure the ingress to use certificates from a public CA.
Why it's wrong here
Cloud DNS alone does not automate certificate renewal; the certificates still need to be obtained and stored manually.
- ✗
Store the certificate and private key in Cloud Secret Manager and configure the ingress to reference the secrets via the Secret Manager CSI driver.
Why it's wrong here
This only stores certificates but does not automate renewal; the certificates still must be obtained and rotated manually.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the distinction between certificate storage solutions (like Secret Manager) and automated renewal mechanisms (like cert-manager), leading candidates to choose a storage-only option that does not solve the renewal problem.
Detailed technical explanation
How to think about this question
cert-manager uses Issuer or ClusterIssuer resources to define the ACME challenge solver (e.g., HTTP-01 via Ingress or DNS-01 via Cloud DNS). For HTTP-01, it temporarily modifies the Ingress to serve a token, which Let's Encrypt validates before issuing the certificate. The certificate is then stored as a Kubernetes Secret and automatically renewed before expiry, typically 30 days prior, based on the configured renewal window.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this PCSE question test?
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: Deploy cert-manager on the GKE cluster and configure it with an Issuer or ClusterIssuer to automatically obtain and renew certificates from Let's Encrypt. — Option B is correct because cert-manager is a native Kubernetes add-on that automates the lifecycle of TLS certificates from public CAs like Let's Encrypt. It integrates directly with GKE Ingress and can handle ACME HTTP-01 or DNS-01 challenges without altering the existing architecture or incurring additional cloud costs, as it runs within the cluster.
What should I do if I get this PCSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 30, 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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