Question 331 of 991

CKAD Practice Question: Application Environment, Configuration and Security

This CKAD practice question tests your understanding of application environment, configuration and security. 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.

A developer wants to restrict a Pod's resource usage. Which two API resources can be used to enforce limits at the namespace level? (Choose two.)

Question 1easymulti select
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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

LimitRange

LimitRange (C) is correct because it allows administrators to set default resource requests and limits, as well as minimum and maximum constraints, for Pods and containers within a namespace. This enforces resource boundaries at the namespace level, ensuring that individual Pods cannot exceed defined limits.

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.

  • PodSecurityPolicy

    Why it's wrong here

    Deprecated and not related to resource limits.

  • HorizontalPodAutoscaler

    Why it's wrong here

    Scales pods based on metrics, does not enforce limits.

  • LimitRange

    Why this is correct

    Sets default resource limits and requests for containers in a namespace.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ResourceQuota

    Why this is correct

    Limits total resource usage across all pods in a namespace.

    Related concept

    Read the scenario before looking for a memorised answer.

  • NetworkPolicy

    Why it's wrong here

    Controls ingress/egress traffic, not resource usage.

Common exam traps

Common exam trap: answer the scenario, not the keyword

CNCF often tests the distinction between namespace-level resource enforcement (LimitRange and ResourceQuota) and cluster-level or scaling mechanisms, leading candidates to confuse HorizontalPodAutoscaler (which scales Pods) with resource limits.

Detailed technical explanation

How to think about this question

LimitRange operates by mutating Pod specifications at admission time via the LimitRanger admission controller, setting default resource requests and limits if none are specified. ResourceQuota, on the other hand, aggregates resource usage across all Pods in a namespace and rejects any new Pod that would exceed the quota. In practice, combining both ensures that individual Pods are constrained (via LimitRange) and the total namespace consumption is capped (via ResourceQuota), preventing resource starvation.

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.

TExam Day Tips

  • 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 CKAD 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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this CKAD question test?

Application Environment, Configuration and Security — This question tests Application Environment, Configuration and Security — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: LimitRange — LimitRange (C) is correct because it allows administrators to set default resource requests and limits, as well as minimum and maximum constraints, for Pods and containers within a namespace. This enforces resource boundaries at the namespace level, ensuring that individual Pods cannot exceed defined limits.

What should I do if I get this CKAD question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 30, 2026

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This CKAD practice question is part of Courseiva's free CNCF 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 CKAD exam.