This CKAD practice question tests your understanding of application environment, configuration and security. 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.
You want to restrict a Pod to only run with a seccomp profile of 'RuntimeDefault'. Which SecurityContext field should you set?
appArmorProfile
Why wrong: AppArmor is a different Linux security module.
capabilities
Why wrong: Capabilities control Linux capabilities, not seccomp profiles.
seLinuxOptions
Why wrong: SELinux options are for SELinux, not seccomp.
seccompProfile
Correct field to set the seccomp profile. Set type: RuntimeDefault.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
seccompProfile
The `seccompProfile` field in a Pod's SecurityContext allows you to specify a seccomp profile to restrict system calls. Setting it to `RuntimeDefault` applies the container runtime's default seccomp profile, which blocks a set of dangerous syscalls while allowing normal operation. This is the correct field to enforce a seccomp profile of 'RuntimeDefault'.
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.
appArmorProfile
Why it's wrong here
AppArmor is a different Linux security module.
capabilities
Why it's wrong here
Capabilities control Linux capabilities, not seccomp profiles.
seLinuxOptions
Why it's wrong here
SELinux options are for SELinux, not seccomp.
seccompProfile
Why this is correct
Correct field to set the seccomp profile. Set type: RuntimeDefault.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates confuse seccomp with other security mechanisms like AppArmor or SELinux, or think that `capabilities` can restrict syscalls, when in fact seccomp is the only field that directly controls syscall filtering.
Detailed technical explanation
Seccomp (secure computing mode) works by intercepting syscalls and allowing or denying them based on a BPF (Berkeley Packet Filter) program. The `RuntimeDefault` profile is provided by the container runtime (e.g., containerd or CRI-O) and typically blocks around 44 syscalls that are known to be dangerous or unnecessary for containers, such as `mount` and `kexec_load`. This is a defense-in-depth measure that reduces the kernel attack surface without requiring custom profile creation.
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 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
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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: seccompProfile — The `seccompProfile` field in a Pod's SecurityContext allows you to specify a seccomp profile to restrict system calls. Setting it to `RuntimeDefault` applies the container runtime's default seccomp profile, which blocks a set of dangerous syscalls while allowing normal operation. This is the correct field to enforce a seccomp profile of 'RuntimeDefault'.
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 25, 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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