Question 902 of 991
Application Observability and MaintenanceeasyMultiple ChoiceObjective-mapped

CKAD Application Observability and Maintenance Practice Question

This CKAD practice question tests your understanding of application observability and maintenance. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 view the resource usage of all containers in a specific pod. Which command should they use?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "which command"

    Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.

Question 1easymultiple choice
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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

kubectl top pod <pod> --containers

Option D is correct because `kubectl top pod <pod> --containers` displays per-container CPU and memory metrics for a specific pod, which is exactly what the developer needs to view resource usage of all containers within that pod. The `--containers` flag is essential to break down the pod-level metrics into individual container-level metrics.

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.

  • kubectl top pods --all-namespaces

    Why it's wrong here

    Shows all pods, not per-container.

  • kubectl top pods

    Why it's wrong here

    Shows all pods, not specific pod containers.

  • kubectl top pod <pod>

    Why it's wrong here

    Shows pod-level metrics, not per-container.

  • kubectl top pod <pod> --containers

    Why this is correct

    Shows per-container CPU and memory.

    Clue confirmation

    The clue word "which command" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often assume `kubectl top pod <pod>` alone shows container-level details, but without the `--containers` flag it only shows pod-level aggregates, leading them to choose option C instead of D.

Trap categories for this question

  • Command / output trap

    Shows all pods, not per-container.

Detailed technical explanation

How to think about this question

The `kubectl top` command relies on the metrics-server (or a compatible metrics API) to collect resource metrics from the kubelet's cAdvisor, which exposes per-container CPU and memory usage via the `/metrics/cadvisor` endpoint. The `--containers` flag instructs the metrics-server to include container-level metrics in the response, which are then formatted by kubectl into a table with a separate row for each container. In real-world scenarios, this is critical for identifying a single container within a pod that is consuming excessive resources, such as a sidecar proxy or a misbehaving application container.

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 Observability and Maintenance — This question tests Application Observability and Maintenance — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: kubectl top pod <pod> --containers — Option D is correct because `kubectl top pod <pod> --containers` displays per-container CPU and memory metrics for a specific pod, which is exactly what the developer needs to view resource usage of all containers within that pod. The `--containers` flag is essential to break down the pod-level metrics into individual container-level metrics.

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.

Are there clue words in this question I should notice?

Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 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.