WGU · BUSINESS & OPERATIONS
WGU D469 Performance Assessment
Quality, Continuous Improvement, and Lean Six Sigma
Official Exam
A+ VERIFIED · Intermediate · Application / Analysis Level
A+ 5 100%
QUESTIONS EXAM DOMAINS RATIONALES
VERIFIED COVERED INCLUDED
CATEGORIES
■ 1. Quality Concepts & Dimensions
■ 2. Performance Measurement & Metrics
■ 3. Lean Principles & Waste Reduction
■ 4. Six Sigma & DMAIC Methodology
■ 5. Tools, Implementation & Continuous Improvement Culture
STUVIAACTUALEXAM
Passing Score: 75% · 1 Mark per Question · Application / Analysis Level
, SECTION 1 — Quality Concepts & Dimensions
Q1. A manufacturing manager is evaluating product quality from the customer’s perspective. The customer cares most about whether the
product performs its intended function consistently over time. This dimension of quality is best described as:
A. Aesthetics
B. Perceived quality based only on brand image
C. Reliability
D. Serviceability
Correct Answer: C
Rationale: Reliability refers to the probability that a product will perform its intended function without failure for a specified period under stated conditions. It is
a core quality dimension from the customer’s viewpoint.
Q2. An operations team debates whether quality should be defined as “conformance to specifications” or “fitness for use.” The
fitness-for-use perspective emphasizes:
A. How well the product or service meets the customer’s actual requirements and expectations
B. Minimizing inspection costs only
C. Maximizing the number of features regardless of usefulness
D. Meeting internal engineering tolerances regardless of customer needs
Correct Answer: A
Rationale: Fitness for use, associated with Juran, focuses on whether the product satisfies the customer’s intended purpose and needs, not merely internal
specifications.
Q3. A hospital tracks the percentage of patients who rate their overall experience as “excellent.” This metric primarily reflects which quality
dimension?
A. Perceived quality and patient experience
B. Conformance to internal clinical protocols only
C. Supplier lead-time performance
D. Technical durability of medical equipment
Correct Answer: A
Rationale: Patient experience ratings capture perceived quality—the customer’s subjective judgment of the service received—rather than purely technical or
process conformance measures.
Q4. According to Garvin’s dimensions of quality, “features” refers to:
A. The product’s resistance to deterioration over time
B. The ease of repair after failure
C. The basic operating characteristics that define the product’s primary function
D. The “bells and whistles” or secondary characteristics that supplement the basic function
Correct Answer: D
Rationale: Features are the supplemental attributes that enhance the basic performance of a product; performance describes the primary operating
characteristics.
Q5. A company discovers that reducing defects in production also lowers warranty costs and increases customer retention. This outcome
illustrates that:
A. Quality and cost are unrelated
B. Investments in prevention and appraisal can reduce failure costs and improve overall business results
C. Quality improvement always increases total cost
D. Inspection is the only way to achieve quality
Correct Answer: B
Rationale: The cost-of-quality framework shows that spending on prevention and appraisal typically reduces internal and external failure costs, improving
both quality and financial performance.
Q6. In the cost-of-quality model, the cost of reworking defective items before they leave the factory is classified as:
A. Internal failure cost
B. Appraisal cost
C. Prevention cost
D. External failure cost
Correct Answer: A
Rationale: Internal failure costs arise from defects detected before the product reaches the customer, including scrap, rework, and retesting.
Page 2 | WGU D469 Performance Assessment | STUVIAACTUALEXAM
WGU D469 Performance Assessment
Quality, Continuous Improvement, and Lean Six Sigma
Official Exam
A+ VERIFIED · Intermediate · Application / Analysis Level
A+ 5 100%
QUESTIONS EXAM DOMAINS RATIONALES
VERIFIED COVERED INCLUDED
CATEGORIES
■ 1. Quality Concepts & Dimensions
■ 2. Performance Measurement & Metrics
■ 3. Lean Principles & Waste Reduction
■ 4. Six Sigma & DMAIC Methodology
■ 5. Tools, Implementation & Continuous Improvement Culture
STUVIAACTUALEXAM
Passing Score: 75% · 1 Mark per Question · Application / Analysis Level
, SECTION 1 — Quality Concepts & Dimensions
Q1. A manufacturing manager is evaluating product quality from the customer’s perspective. The customer cares most about whether the
product performs its intended function consistently over time. This dimension of quality is best described as:
A. Aesthetics
B. Perceived quality based only on brand image
C. Reliability
D. Serviceability
Correct Answer: C
Rationale: Reliability refers to the probability that a product will perform its intended function without failure for a specified period under stated conditions. It is
a core quality dimension from the customer’s viewpoint.
Q2. An operations team debates whether quality should be defined as “conformance to specifications” or “fitness for use.” The
fitness-for-use perspective emphasizes:
A. How well the product or service meets the customer’s actual requirements and expectations
B. Minimizing inspection costs only
C. Maximizing the number of features regardless of usefulness
D. Meeting internal engineering tolerances regardless of customer needs
Correct Answer: A
Rationale: Fitness for use, associated with Juran, focuses on whether the product satisfies the customer’s intended purpose and needs, not merely internal
specifications.
Q3. A hospital tracks the percentage of patients who rate their overall experience as “excellent.” This metric primarily reflects which quality
dimension?
A. Perceived quality and patient experience
B. Conformance to internal clinical protocols only
C. Supplier lead-time performance
D. Technical durability of medical equipment
Correct Answer: A
Rationale: Patient experience ratings capture perceived quality—the customer’s subjective judgment of the service received—rather than purely technical or
process conformance measures.
Q4. According to Garvin’s dimensions of quality, “features” refers to:
A. The product’s resistance to deterioration over time
B. The ease of repair after failure
C. The basic operating characteristics that define the product’s primary function
D. The “bells and whistles” or secondary characteristics that supplement the basic function
Correct Answer: D
Rationale: Features are the supplemental attributes that enhance the basic performance of a product; performance describes the primary operating
characteristics.
Q5. A company discovers that reducing defects in production also lowers warranty costs and increases customer retention. This outcome
illustrates that:
A. Quality and cost are unrelated
B. Investments in prevention and appraisal can reduce failure costs and improve overall business results
C. Quality improvement always increases total cost
D. Inspection is the only way to achieve quality
Correct Answer: B
Rationale: The cost-of-quality framework shows that spending on prevention and appraisal typically reduces internal and external failure costs, improving
both quality and financial performance.
Q6. In the cost-of-quality model, the cost of reworking defective items before they leave the factory is classified as:
A. Internal failure cost
B. Appraisal cost
C. Prevention cost
D. External failure cost
Correct Answer: A
Rationale: Internal failure costs arise from defects detected before the product reaches the customer, including scrap, rework, and retesting.
Page 2 | WGU D469 Performance Assessment | STUVIAACTUALEXAM
