Google ACE Deploying and implementing a cloud solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company is deploying a microservices application on Google Kubernetes Engine (GKE). They want to expose their services to the internet using a single external IP address and route traffic based on the request path. Which resource should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
An Ingress resource
An Ingress resource is the correct choice because it provides HTTP(S) layer 7 routing, allowing you to expose multiple services behind a single external IP address and route traffic based on request paths (e.g., /api to one service, /web to another). This meets the requirement of using one external IP and path-based routing, which a Service alone cannot achieve.
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.
✓
An Ingress resource
Why this is correct
Ingress provides path-based routing with a single external IP.
Related concept
Read the scenario before looking for a memorised answer.
✗
A Service of type NodePort
Why it's wrong here
Only exposes on each node's IP and port, not a single external IP.
✗
A Service of type LoadBalancer for each microservice
Why it's wrong here
Creates a separate external IP per service, not a single IP.
✗
A Network Endpoint Group (NEG)
Why it's wrong here
NEG is a backend resource for load balancers, not a Kubernetes resource for routing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a Service of type LoadBalancer with an Ingress, thinking that a LoadBalancer can also provide path-based routing, but a LoadBalancer operates at layer 4 (TCP/UDP) and cannot inspect HTTP paths, whereas Ingress operates at layer 7 and is specifically designed for such routing.
Detailed technical explanation
How to think about this question
Under the hood, an Ingress resource defines rules using host and path matching, and the GKE Ingress controller (typically based on the GCP HTTP(S) Load Balancer) translates these rules into a single external IP with URL maps that direct traffic to the appropriate backend services. A subtle behavior is that Ingress can also handle TLS termination and rewrite paths, which is critical for microservices that expect specific URI prefixes. In a real-world scenario, if you have multiple microservices like a frontend and an API, an Ingress with path-based routing (e.g., /api/* -> api-service, /* -> frontend-service) efficiently manages traffic without exposing internal service details.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this ACE question in full detail.
Deploying and implementing a cloud solution — This question tests Deploying and implementing a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: An Ingress resource — An Ingress resource is the correct choice because it provides HTTP(S) layer 7 routing, allowing you to expose multiple services behind a single external IP address and route traffic based on request paths (e.g., /api to one service, /web to another). This meets the requirement of using one external IP and path-based routing, which a Service alone cannot achieve.
What should I do if I get this ACE 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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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.
Question Discussion
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