KCNA Kubernetes Fundamentals Practice Question
Which Kubernetes object provides a stable IP address and DNS name to access a set of pods, and can perform load balancing?
⚠ Common exam trap
A common misconception is that Ingress itself performs load balancing, but Ingress is only a routing rule set; the actual load balancing is done by the Service or the Ingress controller's underlying proxy.
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
✓
Service
A Service is the correct Kubernetes object because it provides a stable virtual IP (ClusterIP) and a DNS name (via CoreDNS) that remains constant even as pods are created or destroyed. It performs layer 4 (TCP/UDP) load balancing across the set of pods selected by its label selector, using iptables or IPVS rules to distribute traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Service
Why this is correct
Services provide stable IP and DNS, and load balance traffic to selected pods.
- ✗
Ingress
Why it's wrong here
Ingress provides HTTP/HTTPS routing to Services, not the stable endpoint itself.
- ✗
Deployment
Why it's wrong here
Deployments manage ReplicaSets but do not provide a stable network endpoint.
- ✗
Pod
Why it's wrong here
Pods are ephemeral and have dynamic IPs.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.