EX280 Cluster Installation And Management Practice Question
What is the primary function of the Machine Config Operator (MCO) in OpenShift 4.14?
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
✓
Managing operating system configurations, file system changes, and software updates for cluster nodes.
The MCO manages and applies configuration changes to the operating system on control plane and worker nodes, such as updates to system files, certs, and kernel parameters.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Managing operating system configurations, file system changes, and software updates for cluster nodes.
Why this is correct
The MCO coordinates OS updates, Ignition config generation, and node reboots.
- ✗
Handling external DNS records and cluster ingress routing.
Why it's wrong here
DNS and routing are handled by the Cluster DNS Operator and Ingress Operator.
- ✗
Provisioning cloud provider virtual machines for cluster scaling.
Why it's wrong here
Virtual machine provisioning on cloud providers is handled by the Machine API Operator and Cluster API controllers.
- ✗
Managing container image registries and secure image signing.
Why it's wrong here
Container image registries are managed by the Cluster Image Registry Operator.
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.