This KCNA practice question tests your understanding of kubernetes fundamentals. 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.
Which TWO of the following are valid ways to expose a set of pods as a network service within a Kubernetes cluster?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Service of type ClusterIP.
A Service of type ClusterIP exposes a set of pods as a network service within the cluster by assigning a stable virtual IP address and DNS name. Traffic to this IP is load-balanced across the pods matching the Service's label selector, enabling internal cluster communication without external exposure.
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.
✗
Create a StatefulSet with pod hostnames.
Why it's wrong here
StatefulSet provides identity, not network service exposure.
✗
Create a Service of type ExternalName.
Why it's wrong here
ExternalName maps to an external DNS, not to pods.
✗
Create a ConfigMap with pod IPs.
Why it's wrong here
ConfigMap does not expose pods as a service.
✓
Create a Service of type ClusterIP.
Why this is correct
ClusterIP exposes pods internally.
Related concept
Read the scenario before looking for a memorised answer.
✓
Create an Ingress resource that routes to a Service.
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between a resource that manages pods (like StatefulSet) and a resource that provides network access to those pods (like Service), leading candidates to confuse pod management with service exposure.
Detailed technical explanation
How to think about this question
A ClusterIP Service uses iptables or IPVS rules on each node to redirect traffic to healthy pod endpoints, with kube-proxy managing the rules. The Service's DNS name (e.g., my-svc.namespace.svc.cluster.local) resolves to the ClusterIP, and endpoints are updated automatically as pods scale or fail. Ingress resources complement Services by providing HTTP/HTTPS routing from outside the cluster, but they still require a backing Service (typically NodePort or ClusterIP) to reach the pods.
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 practitioner preparing for the KCNA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this KCNA question in full detail.
Kubernetes Fundamentals — This question tests Kubernetes Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Service of type ClusterIP. — A Service of type ClusterIP exposes a set of pods as a network service within the cluster by assigning a stable virtual IP address and DNS name. Traffic to this IP is load-balanced across the pods matching the Service's label selector, enabling internal cluster communication without external exposure.
What should I do if I get this KCNA 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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