EX280 User And RBAC Management Practice Question
An administrator configures a LimitRange with a max CPU limit of 2 cores and max memory limit of 4Gi. A developer submits a pod specification where a container requests 3 cores of CPU. How does the OpenShift API server handle this request during admission?
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
✓
The API server rejects the pod creation because the container's CPU request violates the LimitRange maximum constraint.
The API server rejects the pod creation request immediately because the container resource limit exceeds the maximum allowed by the LimitRange.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The API server throttles the container CPU usage at runtime to 2 cores automatically.
Why it's wrong here
LimitRanges validate requests and limits at admission time and reject invalid specs rather than silently adjusting limits upward or downward past maximum constraints.
- ✗
The pod enters a CrashLoopBackOff state while waiting for resource allocation.
Why it's wrong here
The pod is never scheduled or created because admission validation fails.
- ✓
The API server rejects the pod creation because the container's CPU request violates the LimitRange maximum constraint.
Why this is correct
LimitRanges enforce maximum boundaries during admission control, causing rejection if exceeded.
- ✗
The API server accepts the pod and caps the container spec value to 2 cores.
Why it's wrong here
LimitRanges provide defaults for omitted values, but explicitly violating maximum constraints results in admission denial.
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.