EX280 Networking And Network Policies Practice Question
An administrator notices that client source IP addresses are lost when traffic hits a Service of type NodePort, appearing instead as a node IP. Which field in the Service specification should be changed to 'Local' to preserve client source IPs?
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
✓
externalTrafficPolicy: Local
Setting externalTrafficPolicy to Local preserves the client source IP for NodePort and LoadBalancer services.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
externalTrafficPolicy: Local
Why this is correct
Setting externalTrafficPolicy to Local avoids second-hop routing and preserves the client source IP.
- ✗
publishNotReadyAddresses: true
Why it's wrong here
This is used for headless services to include unready pods in endpoints.
- ✗
sessionAffinity: ClientIP
Why it's wrong here
Session affinity routes requests from the same client to the same pod, but does not preserve source IP visibility at the networking layer.
- ✗
ipFamilyPolicy: RequireDualStack
Why it's wrong here
ipFamilyPolicy deals with IPv4 and IPv6 dual-stack networking.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Red Hat exam blueprint
This EX280 practice question is part of Courseiva's free Red Hat 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 EX280 exam.