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.
Which THREE of the following are valid fields in a PodSecurityContext?
fsGroup
Valid at pod level; sets group ownership of volumes.
capabilities
Why wrong: This is a container-level SecurityContext field, not pod-level.
seccompProfile
Valid at pod level (alpha in earlier versions, GA in v1.27+).
runAsNonRoot
Valid at pod level; applies to all containers.
allowPrivilegeEscalation
Why wrong: This is a container-level SecurityContext field, not pod-level.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
fsGroup
Option A is correct because `fsGroup` is a valid field in a PodSecurityContext. It specifies the supplemental group ID applied to all containers in the pod when accessing volumes, ensuring proper file ownership and permissions for shared storage.
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.
fsGroup
Why this is correct
Valid at pod level; sets group ownership of volumes.
Related concept
Read the scenario before looking for a memorised answer.
capabilities
Why it's wrong here
This is a container-level SecurityContext field, not pod-level.
seccompProfile
Why this is correct
Valid at pod level (alpha in earlier versions, GA in v1.27+).
Related concept
Read the scenario before looking for a memorised answer.
runAsNonRoot
Why this is correct
Valid at pod level; applies to all containers.
Related concept
Read the scenario before looking for a memorised answer.
allowPrivilegeEscalation
Why it's wrong here
This is a container-level SecurityContext field, not pod-level.
Common exam traps
CNCF often tests the distinction between PodSecurityContext and container SecurityContext, trapping candidates who assume all security-related fields (like capabilities or allowPrivilegeEscalation) are valid at the pod level when they are actually container-specific.
Detailed technical explanation
The PodSecurityContext operates at the pod level, applying settings like `runAsUser`, `runAsGroup`, `fsGroup`, `seccompProfile`, and `selinuxOptions` to all containers in the pod. In contrast, container-level SecurityContext fields (e.g., `capabilities`, `allowPrivilegeEscalation`, `privileged`) override pod-level settings for specific containers, which is critical when running sidecar containers with different security requirements, such as a logging sidecar needing extra capabilities while the main app runs restricted.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Application Environment, Configuration and Security — This question tests Application Environment, Configuration and Security — Read the scenario before looking for a memorised answer..
The correct answer is: fsGroup — Option A is correct because `fsGroup` is a valid field in a PodSecurityContext. It specifies the supplemental group ID applied to all containers in the pod when accessing volumes, ensuring proper file ownership and permissions for shared storage.
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 30, 2026
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.
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