Quick Answer
The answer is `aa-complain /usr/bin/application`. This command sets the specified AppArmor profile to complain mode, which logs policy violations to `/var/log/syslog` without blocking the application’s access, allowing you to generate logs for needed accesses while the application continues running. On the CompTIA Linux+ XK0-005 exam, this scenario tests your ability to troubleshoot AppArmor denials by switching from enforce to complain mode, a common step before auditing or modifying a profile. A frequent trap is confusing `aa-complain` with `aa-enforce` or `aa-disable`; remember that complain mode is for logging only, not blocking. A useful memory tip: “Complain logs, enforce blocks”—so when you need to see what an application requires without breaking it, use `aa-complain`.
This XK0-005 practice question tests your understanding of 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.
A server running Ubuntu 22.04 has AppArmor enabled. After installing a new application, the application is denied access to certain files even though the permissions are correct. The administrator checks the AppArmor profile and finds it is in enforce mode. Which command can be used to temporarily set the profile to complain mode to generate log entries for needed accesses?
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.
systemctl restart apparmor
Why wrong: Restarts AppArmor service, does not change profile mode.
aa-enforce /usr/bin/application
Why wrong: Sets to enforce mode, which is current state.
aa-complain /usr/bin/application
Sets profile to complain mode, logging denials.
apparmor_parser -r /etc/apparmor.d/usr.bin.application
Why wrong: Reloads the profile, does not change mode.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
aa-complain /usr/bin/application
Option C, `aa-complain /usr/bin/application`, is correct because it sets the specified AppArmor profile to complain mode, which logs policy violations without blocking access. This allows the administrator to identify which accesses the application needs by reviewing the generated log entries, typically in `/var/log/syslog` or via `ausearch`, while the application continues to run.
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.
systemctl restart apparmor
Why it's wrong here
Restarts AppArmor service, does not change profile mode.
aa-enforce /usr/bin/application
Why it's wrong here
Sets to enforce mode, which is current state.
aa-complain /usr/bin/application
Why this is correct
Sets profile to complain mode, logging denials.
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.
apparmor_parser -r /etc/apparmor.d/usr.bin.application
Why it's wrong here
Reloads the profile, does not change mode.
Common exam traps
The trap here is that candidates confuse `aa-complain` with `aa-enforce` or think that restarting the AppArmor service or reloading the profile will change the mode, when in fact only `aa-complain` or `aa-enforce` directly alter the profile's operational mode.
Detailed technical explanation
AppArmor profiles can be in enforce mode (blocking violations) or complain mode (logging violations). The `aa-complain` and `aa-enforce` utilities modify the profile's mode in the kernel's security module without reloading the profile from disk. Log entries generated in complain mode are written to the audit log and can be used with `aa-logprof` to generate updated rules, which is a common workflow for developing or debugging profiles for new applications.
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 XK0-005 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
Security — This question tests Security — Read the scenario before looking for a memorised answer..
The correct answer is: aa-complain /usr/bin/application — Option C, `aa-complain /usr/bin/application`, is correct because it sets the specified AppArmor profile to complain mode, which logs policy violations without blocking access. This allows the administrator to identify which accesses the application needs by reviewing the generated log entries, typically in `/var/log/syslog` or via `ausearch`, while the application continues to run.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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