PK0-005 Tools and Documentation Practice Question
In a RACI matrix, which role is ultimately accountable for the successful completion of a task?
⚠ Common exam trap
PK0-005 often tests the Responsible vs. Accountable distinction — the trap is assuming the person doing the work (Responsible) is also the one ultimately answerable (Accountable).
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Accountable
In a RACI matrix, the Accountable role is the single person ultimately answerable for the task's success or failure. They own the outcome and have the authority to approve the work, even if they delegate the actual doing to others. This is why the 'A' is often described as 'the buck stops here.'
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Consulted
Why it's wrong here
Consulted parties provide input before a decision but hold no delivery or sign-off obligation, so they cannot be accountable. The role is tempting because sought-after expertise implies influence over outcomes, and Consulted would be correct where the question asked whose subject-matter opinion must be obtained before the task proceeds.
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Informed
Why it's wrong here
Informed parties receive status updates only; they hold no decision authority or delivery obligation, so cannot be accountable. The role is tempting because keeping stakeholders notified feels like ownership, and it would be correct where the question asked who must be kept updated on task progress rather than who answers for completion.
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Responsible
Why it's wrong here
Responsible means performing the work, not ultimate accountability; several people can be responsible for one task, whereas accountability must rest with a single person. It is tempting because the doer often appears to own the outcome, and Responsible would be correct if the question asked who carries out the task.
- ✓
Accountable
Why this is correct
In a RACI matrix, the Accountable role owns the task outcome and holds final decision authority, with exactly one accountable person per task. This satisfies the stem's requirement for ultimate ownership, distinguishing it from Responsible, which performs the work, and Consulted or Informed.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This PK0-005 practice question is part of Courseiva's free CompTIA 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 PK0-005 exam.