This KCNA practice question tests your understanding of cloud native architecture. 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 resource in Kubernetes is used to expose a set of pods as a network service?
Pod
Why wrong: Basic unit, not a service abstraction.
Deployment
Why wrong: Manages pod replicas.
Service
Provides stable IP and DNS name for pods.
Ingress
Why wrong: HTTP/HTTPS routing to Services.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Service
Option C is correct because a Service in Kubernetes provides a stable network endpoint (IP address and DNS name) to expose a set of pods, which are ephemeral and can be replaced. Services use selectors to identify target pods and load-balance traffic across them, enabling reliable communication within or outside the cluster.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Pod
Why it's wrong here
Basic unit, not a service abstraction.
Deployment
Why it's wrong here
Manages pod replicas.
Service
Why this is correct
Provides stable IP and DNS name for pods.
Related concept
Read the scenario before looking for a memorised answer.
Ingress
Why it's wrong here
HTTP/HTTPS routing to Services.
Common exam traps
CNCF often tests the misconception that a Deployment can expose pods as a network service, but a Deployment only manages pod lifecycle and replicas, not network exposure.
Detailed technical explanation
Under the hood, a Service creates a virtual IP (ClusterIP) backed by iptables or IPVS rules on each node, which load-balance traffic to the pod endpoints via kube-proxy. A subtle behavior is that Services use endpoints (or endpoint slices) to track healthy pods, and if a pod fails its readiness probe, it is removed from the endpoint list, preventing traffic loss. In a real-world scenario, a Service with type LoadBalancer integrates with a cloud provider's load balancer to expose an application externally, while ClusterIP is used for internal cluster communication.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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
Cloud Native Architecture — This question tests Cloud Native Architecture — Read the scenario before looking for a memorised answer..
The correct answer is: Service — Option C is correct because a Service in Kubernetes provides a stable network endpoint (IP address and DNS name) to expose a set of pods, which are ephemeral and can be replaced. Services use selectors to identify target pods and load-balance traffic across them, enabling reliable communication within or outside the cluster.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.
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