EX280 Cluster Installation And Management Practice Question
An administrator is configuring automated node remediation and scaling in OpenShift 4.14. Which THREE objects or custom resources are involved in machine management, autoscaling, and health checking? (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
✓
MachineSet
Machine, ClusterAutoscaler, and MachineHealthCheck are core resources involved in machine lifecycle and health management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
MachineSet
Why this is correct
MachineSet manages machine replica sets for compute nodes.
- ✗
ClusterVersion
Why it's wrong here
ClusterVersion manages platform versions, not machine health or scaling.
- ✗
OperatorGroup
Why it's wrong here
OperatorGroup is used for OLM operator scoping, not machine management.
- ✓
ClusterAutoscaler
Why this is correct
ClusterAutoscaler scales compute machine pools based on pod demands.
- ✓
MachineHealthCheck
Why this is correct
MachineHealthCheck automatically remediates unhealthy 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.