KCNA Kubernetes Fundamentals Practice Question
A developer has created a Deployment with 3 replicas. The application should be reachable from other Pods within the same cluster. Which Kubernetes resource should be used to provide a stable network endpoint?
⚠ Common exam trap
CNCF often tests the misconception that an Ingress is required for any network access, but the trap here is that Ingress is only for external (north-south) traffic, while internal Pod-to-Pod communication uses a Service.
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 provides a stable network endpoint (ClusterIP) that load-balances traffic across the Pod replicas, abstracting away Pod IP changes due to restarts or scaling. This allows other Pods within the cluster to reach the application reliably using the Service's DNS name, without needing to track individual Pod IPs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Ingress
Why it's wrong here
Ingress provides external access to Services, usually HTTP/HTTPS.
- ✓
Service
Why this is correct
Services provide stable endpoints for Pod communication.
- ✗
PersistentVolumeClaim
Why it's wrong here
PVCs request storage resources.
- ✗
ConfigMap
Why it's wrong here
ConfigMap stores configuration data.
Go deeper
Related to this question
About these practice questions
Courseiva writes every KCNA question from scratch — 833 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.