CKAD Practice Question: Application Environment, Configuration and Security
This CKAD practice question tests your understanding of application environment, configuration and security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
An administrator wants to enforce that all pods in namespace 'secured' must run with a seccomp profile set to 'RuntimeDefault' at the container level. Which Pod Security Admission policy standard achieves this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the namespace label 'pod-security.kubernetes.io/enforce=restricted'
The 'restricted' Pod Security Admission (PSA) policy standard enforces the most stringent security controls, including requiring that pods use a seccomp profile set to 'RuntimeDefault' at the container level. This is defined in the Kubernetes Pod Security Standards documentation, where the restricted profile mandates 'seccomp: RuntimeDefault' as a baseline requirement. Therefore, option C is correct because it directly matches the policy that enforces this specific seccomp constraint.
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.
✗
Set the namespace label 'pod-security.kubernetes.io/enforce=privileged'
Why it's wrong here
Privileged allows all security contexts, no seccomp enforcement.
✗
Set the namespace label 'pod-security.kubernetes.io/enforce=baseline'
Why it's wrong here
Baseline does not mandate a seccomp profile.
✓
Set the namespace label 'pod-security.kubernetes.io/enforce=restricted'
Why this is correct
The restricted profile requires seccomp profile 'RuntimeDefault' or 'Localhost'.
Related concept
Read the scenario before looking for a memorised answer.
✗
Set the namespace label 'pod-security.kubernetes.io/enforce=seccomp'
Why it's wrong here
There is no 'seccomp' Pod Security Standard level.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the 'baseline' standard with 'restricted', assuming baseline covers seccomp requirements, but baseline only addresses basic privilege escalation and does not mandate a specific seccomp profile.
Detailed technical explanation
How to think about this question
Under the hood, Pod Security Admission (PSA) is an admission controller that evaluates pods against predefined security standards (privileged, baseline, restricted) based on namespace labels. The restricted standard enforces seccomp at the container level by requiring the 'securityContext.seccompProfile.type' field to be set to 'RuntimeDefault' or 'Localhost', which is validated during pod creation. In a real-world scenario, failing to set this label would allow pods to run without seccomp restrictions, potentially exposing the cluster to syscall-based attacks that the 'RuntimeDefault' profile mitigates.
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 junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CKAD question in full detail.
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: Set the namespace label 'pod-security.kubernetes.io/enforce=restricted' — The 'restricted' Pod Security Admission (PSA) policy standard enforces the most stringent security controls, including requiring that pods use a seccomp profile set to 'RuntimeDefault' at the container level. This is defined in the Kubernetes Pod Security Standards documentation, where the restricted profile mandates 'seccomp: RuntimeDefault' as a baseline requirement. Therefore, option C is correct because it directly matches the policy that enforces this specific seccomp constraint.
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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Question Discussion
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