This CBDA business decision making quiz gives you 12 original, scenario-based practice questions on Domain 5 of the exam, Use Results to Influence Business Decision Making. The set covers recommending actions, valuing solution options with financial and decision analysis, building an implementation plan, using simulation and optimization, and managing change. Every answer is explained and tied to a section of the Guide to Business Data Analytics.
How this CBDA business decision making set is built
Domain 5 carries 20% of the CBDA exam. The 12 questions target the three tasks in Guide section 2.5 and the techniques linked to them, in the real exam's style: a short scenario, then what the analyst should do first, next or best. Difficulty is set slightly above typical question banks. All questions are original, not exam dumps. For a broad warm-up, try our first set of CBDA mock questions.
The ideas behind the set:
- 2.5 Results create value only when acted on, as decision support or inside a real-time workflow.
- 2.5.1 Recommend Actions. Elicit, rate and rank solution options; recommend one that fits strategy, returns the investment and moves the KPIs.
- 2.5.2 Develop Implementation Plan. Tasks, resources, owner estimates and dependencies.
- 2.5.3 Manage Change. Agree the change first; current and proposed models aid adoption.
- 3.8 Decision Modelling and Analysis. Compares alternatives under uncertainty; see our guide to decision modeling and decision analysis.
- 3.1 Business Simulation answers what-if questions when data is sparse; 3.14 Optimization picks the best option under constraints.
| Sub-topic | Questions |
|---|---|
| Recommending actions and valuing options (2.5, 2.5.1) | 1, 2, 4, 5 |
| Decision modelling and analysis (3.8) | 3, 6 |
| Implementation plan (2.5.2) | 7, 8 |
| Simulation and optimization (3.1, 3.14) | 9, 10 |
| Managing change and lessons learned (2.5.3, 2.5.4) | 11, 12 |
CBDA exam at a glance
| Item | Detail |
|---|---|
| Format | 75 multiple-choice, scenario-based questions in 2 hours |
| Domain 5 weight | 20% |
| Exam fee | US$405; IIBA members US$250 |
| Passing score | Not published by IIBA |
Last verified: October 2026
Practice Questions
Question 1
Velora Stays, a hotel booking platform, ran a proof of concept that flags wrongly entered room rates. On static rate files, the model reached an acceptable F1 score. The sponsor wants a platform-wide rollout.
What should the analyst do NEXT?
- A. Ask the data scientists to raise the F1 score further before discussing deployment.
- B. Recommend production rollout, since model performance meets the agreed threshold.
- C. Analyze how the model fits current rate-loading processes and what production would cost.
- D. Present the confusion matrix to the sponsor and request approval to start rollout.
Question 2
Harlow Freight has two options to reduce late deliveries.
| Option | One-time cost | Annual benefit | Annual run cost |
|---|---|---|---|
| X: route optimization platform | $300,000 | $180,000 | $40,000 |
| Y: dispatcher alerting rules | $120,000 | $110,000 | $20,000 |
Based on three-year net benefit, which option should the analyst present as financially stronger?
- A. Option X, with a net benefit of $120,000.
- B. Option Y, with a net benefit of $150,000.
- C. Option X, with a net benefit of $240,000.
- D. Option Y, with a net benefit of $210,000.
Question 3
Brightmoor Bank has a churn model. A full rollout of retention offers has a 60% chance of gaining $500,000 and a 40% chance of losing $200,000. A targeted rollout has a 90% chance of gaining $260,000 and a 10% chance of losing $50,000.
Using expected value, what should the analyst present?
- A. Full rollout, with an expected value of $220,000.
- B. Full rollout, with an expected value of $500,000.
- C. Neither option, since both carry a chance of loss.
- D. Targeted rollout, with an expected value of $229,000.
Question 4
Corvane Insurance built a model that predicts claim risk for new home policies. The goal is to quote low-risk applicants within seconds while they are still online.
Which use of the model BEST serves this goal?
- A. Integrate the model into the quoting workflow to score each application in real time.
- B. Send underwriters a weekly dashboard with scores for recent applications.
- C. Add a risk score column to the existing monthly underwriting report.
- D. Present the model results in a slide deck to underwriting leadership.
Question 5
Quillfield Libraries has three options to cut late returns: longer loans, text reminders and a fine amnesty. The analyst wants staff and patron reactions before ranking them.
Which approach should the analyst use?
- A. Run an A/B test of all three options across branches.
- B. Build a regression model of late returns by loan period.
- C. Hold focus groups with staff and patrons on the options.
- D. Ask the director to pick the lowest-cost option.
Question 6
Early in the initiative, the Tamsin Foods analyst documented how regional managers decide weekly stock transfers between stores. The analytics team has now produced store-level demand forecasts.
How should the analyst assess the effect of the forecasts on the transfer decision?
- A. Replace the existing decision process with the forecast output.
- B. Use the baseline decision model to see which decision points change.
- C. Survey regional managers on whether they trust the forecasts.
- D. Build a new decision model from scratch around the forecasts.
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Question 7
The Pellow Telecom analyst is drafting an implementation plan. Task owners gave these estimates.
| Task | Duration | Depends on |
|---|---|---|
| A. Retrain churn model | 3 weeks | none |
| B. Build live data pipeline | 4 weeks | none |
| C. Integrate scores into CRM | 3 weeks | A, B |
| D. Train retention agents | 2 weeks | C |
| E. Update retention policy | 1 week | A |
If tasks run in parallel wherever dependencies allow, what is the earliest finish?
- A. 7 weeks
- B. 8 weeks
- C. 13 weeks
- D. 9 weeks
Question 8
Ordale Hospital approved scheduling operating rooms with predicted surgery durations. The analyst has broken the work into tasks with the surgical, IT and nursing teams, but has no estimates yet.
What should the analyst do NEXT?
- A. Ask the stakeholders responsible for each task for high-level estimates.
- B. Estimate every task personally to keep the figures consistent.
- C. Copy durations from a published hospital scheduling benchmark.
- D. Leave estimates out until the first task is complete.
Question 9
Lumen Kettle will launch its first coffee subscription. Leadership asks what happens to sign-ups if the price is 10% higher. There is no sales history, and a live price test before launch is not possible.
Which technique should the analyst recommend?
- A. Linear regression on existing retail coffee sales.
- B. Business simulation built on expert knowledge and assumed distributions.
- C. A survey asking customers to rate the brand.
- D. A hypothesis test comparing two live price groups.
Question 10
Grenwick Bakeries' optimization model plans overnight production on two ovens to maximize profit. The night supervisor calls the plan unworkable: each oven must stop for an hour of cleaning every shift, and the model ignored this.
What should the analyst do FIRST?
- A. Ask the data team to switch to a more advanced algorithm.
- B. Accept the plan and ask the supervisor to move cleaning times.
- C. Elicit the operating rules and add the missing constraint.
- D. Change the objective function from profit to oven utilization.
Question 11
Dunmere Logistics will change how pickers handle damaged items. Pickers do not see what will differ in their routine, and the analyst leads the change.
How should the analyst explain the change?
- A. Share the model accuracy report with the warehouse teams.
- B. Email pickers the new policy document and invite questions.
- C. Ask supervisors to mention the change at the next shift briefing.
- D. Walk pickers through current and proposed process models side by side.
Question 12
Ashby Retail has finished an analytics initiative on store staffing. The analyst is compiling lessons learned for future initiatives.
Which TWO items belong in the lessons learned? (Choose two.)
- A. Point-of-sale data lacked shift codes, which delayed data preparation.
- B. Individual performance ratings of each team member.
- C. The final staffing schedule approved for next quarter.
- D. The list of stores that received the new schedule first.
- E. The clustering approach was chosen late, after two weeks of rework.
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Answer Key and Explanations
1. Correct answer: C. The Guide's pricing-anomaly example asks which processes change (real-time blocking versus batch checks) and what the return is once live data streams and new architecture are costed. Source: Guide to Business Data Analytics, 2.5.1 Recommend Actions Why the others are wrong: A chases accuracy that is already acceptable; B skips process and cost analysis; D seeks approval before the analysis.
2. Correct answer: B. Y nets 3 × ($110,000 − $20,000) − $120,000 = $150,000; X nets 3 × ($180,000 − $40,000) − $300,000 = $120,000. The Guide names financial analysis for evaluating the financial performance of recommended actions, so run costs count. See also our article on business cases and value modeling. Source: Guide to Business Data Analytics, 2.5.4 Select Techniques for Use Results to Influence Business Decision-Making Why the others are wrong: A is the weaker option; C and D ignore run costs.
3. Correct answer: D. Full: 0.6 × $500,000 − 0.4 × $200,000 = $220,000. Targeted: 0.9 × $260,000 − 0.1 × $50,000 = $229,000. Decision analysis values alternative outcomes under uncertainty, and a decision tree follows a decision to its logical impact. Source: Guide to Business Data Analytics, 3.8 Decision Modelling and Analysis Why the others are wrong: A has the lower expected value; B uses the best case; C ignores that both expected values are positive.
4. Correct answer: A. The Guide separates decision support from integration into workflows for real-time decisions, citing automated underwriting and fraud detection. Source: Guide to Business Data Analytics, 2.5 Use Results to Influence Business Decision-Making Why the others are wrong: B, C and D keep the model as after-the-fact support, too slow for an online quote.
5. Correct answer: C. The Guide says focus groups obtain participant feedback on the options under consideration, before rating and ranking. Source: Guide to Business Data Analytics, 2.5.1 Recommend Actions Why the others are wrong: A measures outcomes, not reactions; B re-analyzes understood data; D drops the analyst's ranking role.
6. Correct answer: B. The baseline decision model built while identifying the research question is reused in Domain 5 to assess how insights affect business decisions and their dependencies. Source: Guide to Business Data Analytics, 3.8 Decision Modelling and Analysis Why the others are wrong: A automates before assessment; C measures trust, not impact; D discards the baseline needed for comparison.
7. Correct answer: D. C waits for A and B, so it starts after week 4 and ends at week 7; D ends at week 9. The Guide requires a plan sequence showing task dependencies. Source: Guide to Business Data Analytics, 2.5.2 Develop Implementation Plan Why the others are wrong: A stops at task C; B follows A-C-D and ignores the longer pipeline; C assumes nothing runs in parallel.
8. Correct answer: A. An implementation plan lists tasks, sub-tasks and resources, with high-level estimates that come from the stakeholders who own each task. Source: Guide to Business Data Analytics, 2.5.2 Develop Implementation Plan Why the others are wrong: B removes ownership; C borrows another context; D blocks sequencing.
9. Correct answer: B. The Guide recommends business simulation when data is sparse, as in a new product launch, for what-if questions such as a 10% price rise, and when live experiments are not feasible. Source: Guide to Business Data Analytics, 3.1 Business Simulation Why the others are wrong: A uses another product's data; C does not address price; D needs the live test that is ruled out.
10. Correct answer: C. The Guide lists accurate constraint formulation as a limitation of optimization and says analysts uncover implicit constraints through elicitation and business rules. Source: Guide to Business Data Analytics, 3.14 Optimization Why the others are wrong: A changes the solver, not the formulation; B forces an infeasible plan; D changes the goal, not the limits.
11. Correct answer: D. In managing change, analysts use process models, organization models and sequence diagrams to show existing workflows, then the same models for the proposed change, using teaching skills to explain procedures. Source: Guide to Business Data Analytics, 2.5.3 Manage Change Why the others are wrong: A explains the model, not the routine; B is one-way; C delegates without a clear view of the change.
12. Correct answers: A and E. Lessons learned cover improvements to the analytics approach, data resources, analytics capabilities and organizational capabilities. A is a data resource gap; E is an approach issue. Source: Guide to Business Data Analytics, 2.5.4 Select Techniques for Use Results to Influence Business Decision-Making Why the others are wrong: B is personal appraisal; C is an outcome; D is rollout detail with no lesson.
How to score this set
One point per question; Question 12 scores only if both choices are right.
- 11–12: Domain 5 is a strength.
- 8–10: Reread the explanations you missed, especially Questions 2, 3 and 7.
- Below 8: Review Guide section 2.5 and techniques 3.1, 3.8 and 3.14, then retake the set in a week.
Next, try our CBDA Interpret and Report Results quiz. For exam-length practice, the CBDA exam simulator runs 75 questions; sign up free to use it.
What candidates say about business decision making on the CBDA
Our author's CBDA overview reports flagging about 20 of 75 questions and finding the real exam harder than question banks, with more weight on analytical decision-making than definitions. Mufaddal Haidermota (CBDA, December 2022) advises per-domain mock questions before full tests. Trainer LN Mishra of Adaptive US recommends timed mocks and reviewing every wrong answer. A Techcanvass candidate story credits mind maps and two to three hours of daily study. Practitioners agree: scenario practice beats memorizing names.
FAQ
How much of the CBDA exam covers business decision making?
Domain 5, Use Results to Influence Business Decision Making, carries 20% of the exam according to IIBA. With 75 questions, expect roughly 15 from this domain.
Which Guide sections should I study for Domain 5?
Start with section 2.5 and its three tasks. Then cover decision modelling and analysis (3.8), business simulation (3.1) and optimization (3.14), plus the 2.5.4 technique list, which adds financial analysis and lessons learned.
Does the CBDA exam include calculations?
Candidates report a focus on analytical reasoning. Quick calculations such as net benefit or expected value help compare options, so practice them.
What is the passing score for the CBDA?
IIBA does not publish a passing score for the CBDA. Use consistent high scores across all domains in timed practice as your signal.
Sources
- Certification in Business Data Analytics (CBDA) — IIBA, checked October 2026
- Certification Fees — IIBA, checked October 2026
- CBDA Certification Handbook — IIBA, checked October 2026
- Business Data Analytics Certification — Mufaddal Haidermota, Medium, January 2023
- CBDA Certification Journey of Ivan — Techcanvass, 2024
- Mastering the CBDA Exam — LN Mishra, Adaptive US, October 2024