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ACE Practice Question: A startup runs its application entirely on Cloud…
This ACE practice question tests your understanding of a startup runs its application entirely on cloud…. 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.
A startup runs its application entirely on Cloud Run. They want to use a custom domain (api.mycompany.com) instead of the default Cloud Run URL. Which GCP feature maps a custom domain to a Cloud Run service?
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
Distractor review
Cloud DNS — create a CNAME record pointing to the Cloud Run URL
Cloud DNS can create CNAME records, but Cloud Run URLs are not static endpoints — a Cloud Run domain mapping is needed to get a stable endpoint for DNS.
B
Distractor review
Cloud Endpoints with an API gateway configuration
Cloud Endpoints is an API management layer — it can be used with Cloud Run but adds complexity. It's not the standard approach for simply mapping a custom domain.
C
Best answer
Cloud Run Domain Mappings or a Global Load Balancer with a Serverless NEG
Cloud Run Domain Mappings provide the simplest path to custom domains with automatic TLS. For advanced routing, a Global Load Balancer with a Serverless Network Endpoint Group (NEG) is used.
D
Distractor review
Firebase Hosting rewrites to Cloud Run
Firebase Hosting can proxy requests to Cloud Run, but it adds a Firebase dependency — Cloud Run Domain Mappings are the direct, native solution.
Common exam trap
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.
Technical deep dive
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.
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?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Cloud Run Domain Mappings or a Global Load Balancer with a Serverless NEG — Cloud Run supports custom domain mapping through Cloud Run Domain Mappings (or via Global Load Balancer with Serverless NEG backend). Domain mappings allow a custom domain to resolve to a Cloud Run service with automatic TLS certificate provisioning.
What should I do if I get this ACE question wrong?
Identify which ACE 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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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.