EX280 Troubleshooting And Diagnostics Practice Question
An OpenShift cluster upgrade has failed because a MachineConfigPool is degraded. Which THREE actions or commands can an administrator perform to diagnose the root cause of the MachineConfigPool degradation? (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
✓
oc logs -n openshift-machine-config-operator daemonset/machine-config-daemon
Describing the MCP, checking MCD pod logs on nodes, and inspecting rendered machine configs help diagnose node configuration failures.
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 -n openshift-machine-config-operator daemonset/machine-config-daemon
Why this is correct
Shows execution errors when applying configs to node filesystems.
- ✗
oc scale deployment/cluster-version-operator --replicas=3
Why it's wrong here
Scaling CVO does not resolve MachineConfig daemon application errors on worker nodes.
- ✓
oc get machineconfig -l machineconfiguration.openshift.io/role=<role>
Why this is correct
Lists active MachineConfigs applied to the pool to check for conflicting settings.
- ✗
oc adm upgrade cancel
Why it's wrong here
Canceling upgrades does not diagnose MCP failure causes.
- ✓
oc describe machineconfigpool <pool-name>
Why this is correct
Shows degraded node counts, blocked configurations, and detailed status conditions.
About these practice questions
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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.