EX280 Cluster Installation And Management Practice Question
An administrator is troubleshooting a custom MachineConfig that failed to apply across a worker MachineConfigPool. Which THREE diagnostic steps or resources should the administrator check? (Choose THREE)
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
✓
Review the logs of the machine-config-daemon pods on the affected nodes.
To diagnose MachineConfig application failures, check pool status conditions, machine-config-daemon pod logs, and rendered MachineConfigs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Check the Cluster Version Operator logs for container registry pull errors.
Why it's wrong here
CVO logs are for cluster version upgrades, not node configuration daemon errors.
- ✓
Review the logs of the machine-config-daemon pods on the affected nodes.
Why this is correct
Daemon logs show ignition parsing and file write errors on nodes.
- ✗
Verify the OLM CatalogSource status.
Why it's wrong here
CatalogSources are for OLM operators, not MCO node configurations.
- ✓
Check the MachineConfigPool status conditions for Degraded or Updating status.
Why this is correct
Pool status indicates whether configurations are rolling out or failing.
- ✓
Inspect the rendered MachineConfig object generated by the MCO.
Why this is correct
Rendered configs show the combined resulting ignition files sent to nodes.
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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.