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WGU D469 Performance Assessment Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE
THIS YEAR JUST RELEASED
WGU D469 Performance Assessment (Quality, Continuous Improvement, and Lean Six Sigma). It begins
with a targeted, point-form summary of the exam coverage, followed by 200+ scenario-based multiple-
choice questions. Each question includes a correct answer and an italicized rationale based on WGU
course material and industry standards.
Summarized Exam Coverage (Point Form)
This assessment covers four major domains:
Domain 1: Quality Management Foundations (15-20%)
• Quality Gurus: Deming (14 Points, PDCA), Juran (Fitness for use, Quality Trilogy), Crosby (Zero
defects, "Quality is free"), Feigenbaum (Total Quality Control), Ishikawa (Fishbone diagram,
quality circles), Taguchi (Quality loss function)
• Cost of Quality (COQ): Prevention costs (planning, training), Appraisal costs (inspection, testing),
Internal failure costs (scrap, rework), External failure costs (warranty, returns, reputation)
• Dimensions of Quality (Garvin): Performance, features, reliability, conformance, durability,
serviceability, aesthetics, perceived quality
• ISO Standards: ISO 9001 (Quality Management Systems), ISO 14001 (Environmental),
continuous improvement requirements
Domain 2: Six Sigma Methodology (25-30%)
• DMAIC: Define (problem/project scope), Measure (baseline data), Analyze (root cause), Improve
(solutions), Control (sustain gains)
• Six Sigma Goal: Reduce process variation and defects to 3.4 defects per million opportunities
(DPMO)
• Statistical Tools: Control charts (X̄ , R, p, c charts), Process capability (Cp, Cpk), Standard
deviation (σ), Control limits (typically ±3σ, ~99.73%)
• Roles: Green Belt (part-time), Black Belt (full-time project leader), Master Black Belt
(trainer/mentor)
• Define Phase Deliverables: Project charter, SIPOC, Voice of Customer (VOC), Critical to Quality
(CTQ)
Domain 3: Lean Principles & Waste Reduction (25-30%)
• The 8 Wastes (DOWNTIME): Defects, Overproduction, Waiting, Non-utilized talent,
Transportation, Inventory, Motion, Excess processing
• 5S Methodology: Sort, Set in order, Shine, Standardize, Sustain
• Kaizen: Continuous small improvements involving all employees; Kaizen events typically last 3-5
days
• Just-in-Time (JIT): Produce only what is needed, when needed; minimizes inventory waste
• Kanban: Visual signaling system to control production/inventory flow; formula N = (dL + S)/C
where increasing container size halves number of kanbans
• Value Stream Mapping (VSM): Visualizes process steps to identify non-value-added activities
and waste
• Poka-Yoke: Mistake-proofing devices/processes to prevent errors
• Quality at the Source: Each worker responsible for defect-free output before passing to next
stage
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Domain 4: Performance Measurement & KPIs (15-20%)
• Balanced Scorecard (Kaplan & Norton): Financial, Customer, Internal Processes, Learning &
Growth perspectives
• SMART Goals: Specific, Measurable, Achievable, Relevant, Time-bound
• Leading vs. Lagging Indicators: Leading predicts future performance; lagging measures past
results
• Key Performance Indicators (KPIs): Must directly align with strategic objectives
• Benchmarking: Comparing performance to industry standards or best practices
• ROI & Financial Metrics: Operating margin, cost per unit, efficiency ratios
Domain 5: Process Improvement Tools (10-15%)
• PDCA Cycle (Deming/Shewhart): Plan, Do, Check, Act
• Root Cause Analysis Tools: 5 Whys (ask "why" repeatedly), Fishbone/Ishikawa diagram
(categories causes)
• Pareto Analysis: 80/20 rule - most quality problems come from few causes
• Flowcharts & Value Stream Maps: Identify process relationships and bottlenecks
• Control Charts: Track variation over time; sample points outside limits indicate "out of control"
200+ Scenario-Based MCQs with Rationales
Domain 1: Quality Management Foundations (1-30)
1. A manufacturing plant manager wants to implement a quality philosophy focused on continuous
improvement and statistical process control. Which quality guru's approach should they study?
A. Philip Crosby
B. Joseph Juran
C. W. Edwards Deming
D. Armand Feigenbaum
Answer: C
*Rationale: W. Edwards Deming is considered the father of modern quality management, known for his
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14 Points and the Plan-Do-Check-Act (PDCA) cycle, which form the basis of total quality management
(TQM) .*
2. A company is calculating its cost of quality. It spends money on employee training, process
documentation, and quality planning. Which cost category do these expenses fall under?
A. Appraisal costs
B. Prevention costs
C. Internal failure costs
D. External failure costs
Answer: B
Rationale: Prevention costs are incurred to prevent defects from occurring in the first place, including
training, quality planning, process documentation, and preventive maintenance .
3. A consumer electronics company is launching a new smartphone. The battery lasts 24 hours on a
single charge, and the screen is scratch-resistant. Which dimension of quality (Garvin) is being
described?
A. Reliability
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B. Serviceability
C. Performance
D. Aesthetics
Answer: C
Rationale: Garvin's performance dimension refers to the product's primary operating characteristics,
such as battery life and screen durability. These are measurable features that define how well the
product functions .
4. A furniture manufacturer consistently ships products that match design specifications with zero
defects. According to Garvin, which quality dimension is being demonstrated?
A. Features
B. Perceived quality
C. Conformance
D. Durability
WGU D469 Performance Assessment Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE
THIS YEAR JUST RELEASED
WGU D469 Performance Assessment (Quality, Continuous Improvement, and Lean Six Sigma). It begins
with a targeted, point-form summary of the exam coverage, followed by 200+ scenario-based multiple-
choice questions. Each question includes a correct answer and an italicized rationale based on WGU
course material and industry standards.
Summarized Exam Coverage (Point Form)
This assessment covers four major domains:
Domain 1: Quality Management Foundations (15-20%)
• Quality Gurus: Deming (14 Points, PDCA), Juran (Fitness for use, Quality Trilogy), Crosby (Zero
defects, "Quality is free"), Feigenbaum (Total Quality Control), Ishikawa (Fishbone diagram,
quality circles), Taguchi (Quality loss function)
• Cost of Quality (COQ): Prevention costs (planning, training), Appraisal costs (inspection, testing),
Internal failure costs (scrap, rework), External failure costs (warranty, returns, reputation)
• Dimensions of Quality (Garvin): Performance, features, reliability, conformance, durability,
serviceability, aesthetics, perceived quality
• ISO Standards: ISO 9001 (Quality Management Systems), ISO 14001 (Environmental),
continuous improvement requirements
Domain 2: Six Sigma Methodology (25-30%)
• DMAIC: Define (problem/project scope), Measure (baseline data), Analyze (root cause), Improve
(solutions), Control (sustain gains)
• Six Sigma Goal: Reduce process variation and defects to 3.4 defects per million opportunities
(DPMO)
• Statistical Tools: Control charts (X̄ , R, p, c charts), Process capability (Cp, Cpk), Standard
deviation (σ), Control limits (typically ±3σ, ~99.73%)
• Roles: Green Belt (part-time), Black Belt (full-time project leader), Master Black Belt
(trainer/mentor)
• Define Phase Deliverables: Project charter, SIPOC, Voice of Customer (VOC), Critical to Quality
(CTQ)
Domain 3: Lean Principles & Waste Reduction (25-30%)
• The 8 Wastes (DOWNTIME): Defects, Overproduction, Waiting, Non-utilized talent,
Transportation, Inventory, Motion, Excess processing
• 5S Methodology: Sort, Set in order, Shine, Standardize, Sustain
• Kaizen: Continuous small improvements involving all employees; Kaizen events typically last 3-5
days
• Just-in-Time (JIT): Produce only what is needed, when needed; minimizes inventory waste
• Kanban: Visual signaling system to control production/inventory flow; formula N = (dL + S)/C
where increasing container size halves number of kanbans
• Value Stream Mapping (VSM): Visualizes process steps to identify non-value-added activities
and waste
• Poka-Yoke: Mistake-proofing devices/processes to prevent errors
• Quality at the Source: Each worker responsible for defect-free output before passing to next
stage
, Page 2 of 119
Domain 4: Performance Measurement & KPIs (15-20%)
• Balanced Scorecard (Kaplan & Norton): Financial, Customer, Internal Processes, Learning &
Growth perspectives
• SMART Goals: Specific, Measurable, Achievable, Relevant, Time-bound
• Leading vs. Lagging Indicators: Leading predicts future performance; lagging measures past
results
• Key Performance Indicators (KPIs): Must directly align with strategic objectives
• Benchmarking: Comparing performance to industry standards or best practices
• ROI & Financial Metrics: Operating margin, cost per unit, efficiency ratios
Domain 5: Process Improvement Tools (10-15%)
• PDCA Cycle (Deming/Shewhart): Plan, Do, Check, Act
• Root Cause Analysis Tools: 5 Whys (ask "why" repeatedly), Fishbone/Ishikawa diagram
(categories causes)
• Pareto Analysis: 80/20 rule - most quality problems come from few causes
• Flowcharts & Value Stream Maps: Identify process relationships and bottlenecks
• Control Charts: Track variation over time; sample points outside limits indicate "out of control"
200+ Scenario-Based MCQs with Rationales
Domain 1: Quality Management Foundations (1-30)
1. A manufacturing plant manager wants to implement a quality philosophy focused on continuous
improvement and statistical process control. Which quality guru's approach should they study?
A. Philip Crosby
B. Joseph Juran
C. W. Edwards Deming
D. Armand Feigenbaum
Answer: C
*Rationale: W. Edwards Deming is considered the father of modern quality management, known for his
, Page 3 of 119
14 Points and the Plan-Do-Check-Act (PDCA) cycle, which form the basis of total quality management
(TQM) .*
2. A company is calculating its cost of quality. It spends money on employee training, process
documentation, and quality planning. Which cost category do these expenses fall under?
A. Appraisal costs
B. Prevention costs
C. Internal failure costs
D. External failure costs
Answer: B
Rationale: Prevention costs are incurred to prevent defects from occurring in the first place, including
training, quality planning, process documentation, and preventive maintenance .
3. A consumer electronics company is launching a new smartphone. The battery lasts 24 hours on a
single charge, and the screen is scratch-resistant. Which dimension of quality (Garvin) is being
described?
A. Reliability
, Page 4 of 119
B. Serviceability
C. Performance
D. Aesthetics
Answer: C
Rationale: Garvin's performance dimension refers to the product's primary operating characteristics,
such as battery life and screen durability. These are measurable features that define how well the
product functions .
4. A furniture manufacturer consistently ships products that match design specifications with zero
defects. According to Garvin, which quality dimension is being demonstrated?
A. Features
B. Perceived quality
C. Conformance
D. Durability
