This KCNA practice question tests your understanding of kubernetes fundamentals. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO of the following are true about Pod resource limits? (Select TWO)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CPU limits are enforced using CFS quotas
Limits can be higher than requests, and if a container exceeds its memory limit, it may be OOMKilled. Limits cannot be lower than requests (Kubernetes enforces that limits >= requests). CPU limits are not always guaranteed; they are a hard cap for CPU time.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
A container can use more memory than its limit if the node has free memory
Why it's wrong here
If a container exceeds its memory limit, it gets OOMKilled.
✓
CPU limits are enforced using CFS quotas
Why this is correct
CPU limits are enforced via Completely Fair Scheduler (CFS) quotas.
Related concept
Read the scenario before looking for a memorised answer.
✗
Memory limits are soft and can be exceeded temporarily
Why it's wrong here
Memory limits are hard; exceeding them causes OOM kill.
✓
Limits must be greater than or equal to requests
Why this is correct
Kuberenetes validates that limits >= requests.
Related concept
Read the scenario before looking for a memorised answer.
✗
Setting CPU limits guarantees that a container will always get that much CPU
Why it's wrong here
CPU limits are a cap, not a guarantee.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the KCNA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this KCNA question in full detail.
Identify which KCNA exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Kubernetes Fundamentals — This question tests Kubernetes Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: CPU limits are enforced using CFS quotas — Limits can be higher than requests, and if a container exceeds its memory limit, it may be OOMKilled. Limits cannot be lower than requests (Kubernetes enforces that limits >= requests). CPU limits are not always guaranteed; they are a hard cap for CPU time.
What should I do if I get this KCNA question wrong?
Identify which KCNA exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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