PK0-005 Tools and Documentation Practice Question
In a RACI matrix, the person who is ultimately accountable for the completion of a task is denoted by which letter?
⚠ Common exam trap
Watch out — candidates often confuse 'Responsible' (the doer) with 'Accountable' (the owner), but the PMBOK and RACI model strictly separate these roles, and the exam expects you to know that only 'A' denotes ultimate accountability.
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
✓
A - Accountable
In a RACI matrix, 'A' stands for Accountable, meaning the person who has ultimate ownership and sign-off authority for the task. This individual is answerable for the successful completion of the deliverable and cannot delegate that responsibility. The correct answer is D because the RACI acronym explicitly defines 'A' as Accountable.
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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C - Consulted
Why it's wrong here
Consulted denotes those whose input is sought before decisions, not the person ultimately answerable for completion. It attracts selection because subject-matter experts shape outcomes, but Consulted fits only when identifying whose advice is requested, not who owns final accountability.
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R - Responsible
Why it's wrong here
Responsible denotes the person who performs the work, not the one ultimately answerable for its completion. Confusing it with accountability is common because the same individual often does both; Responsible is correct when identifying who executes the task rather than who owns the outcome.
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I - Informed
Why it's wrong here
Informed denotes people kept updated on progress, carrying no accountability for delivery. It is tempting because stakeholders frequently receive status reports and appear involved, yet Informed is correct only when identifying recipients of updates, not the person answerable for the task's completion.
- ✓
A - Accountable
Why this is correct
In a RACI matrix, A denotes Accountable: the single person who ultimately answers for the task's completion and approves the work, distinct from those merely Responsible for performing it. This satisfies the stem's requirement for the ultimately accountable role.
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