EX280 Troubleshooting And Diagnostics Practice Question
The OpenShift SDN (or OVN-Kubernetes) network plugin reports a failure. The administrator needs to inspect the iptables rules on a worker node to verify packet mangling and NAT configurations. How can they view the host's iptables rules?
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
✓
oc debug node/<node-name> -- chroot /host iptables-save
Using oc debug node/<node-name> with chroot /host allows running iptables-save to inspect host network filtering rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
oc logs daemonset/iptables-analyzer
Why it's wrong here
No such daemonset exists in OpenShift by default.
- ✗
oc adm diagnostics iptables
Why it's wrong here
No such diagnostic subcommand exists.
- ✓
oc debug node/<node-name> -- chroot /host iptables-save
Why this is correct
Running iptables-save inside a host chroot debug session displays all active packet filtering rules.
- ✗
oc exec deployment/router-default -- iptables -L
Why it's wrong here
Router pods run in containers with restricted network namespaces and typically lack direct host iptables access.
Visual reference
About these practice questions
This EX280 question is part of Courseiva's 509-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.