This CKS practice question tests your understanding of system hardening. 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.
Which kubectl command is used to check the AppArmor status on a Kubernetes node?
kubectl describe node <node> | grep AppArmor
Why wrong: 'kubectl describe node' does not show AppArmor status.
kubectl get apparmor
Why wrong: There is no 'kubectl get apparmor' command.
kubectl node-shell <node> -- aa-status
Using 'kubectl node-shell' (or similar) to run 'aa-status' on the node is correct.
kubectl exec <pod> -- aa-status
Why wrong: 'kubectl exec' runs commands inside a container, not on the node.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
kubectl node-shell <node> -- aa-status
Option C is correct because `kubectl node-shell` provides a shell into the node's filesystem, allowing you to run `aa-status` directly on the node to check the AppArmor status. This is the standard method to verify AppArmor profiles and their enforcement state on a Kubernetes node, as AppArmor operates at the host kernel level and is not managed via the Kubernetes API.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
kubectl describe node <node> | grep AppArmor
Why it's wrong here
'kubectl describe node' does not show AppArmor status.
kubectl get apparmor
Why it's wrong here
There is no 'kubectl get apparmor' command.
kubectl node-shell <node> -- aa-status
Why this is correct
Using 'kubectl node-shell' (or similar) to run 'aa-status' on the node is correct.
Related concept
Read the scenario before looking for a memorised answer.
kubectl exec <pod> -- aa-status
Why it's wrong here
'kubectl exec' runs commands inside a container, not on the node.
Common exam traps
The trap here is that candidates assume AppArmor status can be checked via standard Kubernetes API commands like `kubectl describe node` or `kubectl get`, when in reality it requires direct node-level access because AppArmor is a host-level security mechanism not abstracted by the Kubernetes API.
Trap categories for this question
Command / output trap
'kubectl describe node' does not show AppArmor status.
Detailed technical explanation
AppArmor is a Linux Security Module (LSM) that uses mandatory access control (MAC) policies, enforced at the kernel level via profiles loaded into the kernel's security blob. The `aa-status` command reads `/sys/kernel/security/apparmor/profiles` and interacts with the AppArmor module to list loaded profiles and their enforcement modes (enforce/complain). In Kubernetes, nodes must have AppArmor enabled in the kernel and the profiles must be pre-loaded on the host; the kubelet only enforces profile selection for pods via annotations like `container.apparmor.security.beta.kubernetes.io/<container_name>`, but does not manage the profiles themselves.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CKS 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
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
System Hardening — This question tests System Hardening — Read the scenario before looking for a memorised answer..
The correct answer is: kubectl node-shell <node> -- aa-status — Option C is correct because `kubectl node-shell` provides a shell into the node's filesystem, allowing you to run `aa-status` directly on the node to check the AppArmor status. This is the standard method to verify AppArmor profiles and their enforcement state on a Kubernetes node, as AppArmor operates at the host kernel level and is not managed via the Kubernetes API.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This CKS 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 CKS exam.
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