WGU C857 SOFTWARE QUALITY
ASSURANCE PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ Defect containment.
Answer: Limiting the impact of remaining defects in operation
◍ What is documented in the inspection session findings report?.
Answer: It provides full documentation of identified errors during the
inspection.
◍ Who participates in formal design reviews?.
Answer: A group of professionals and stakeholders.
◍ What is the purpose of a formal design review (DR)?.
Answer: To evaluate a documented software project product and allow
professionals to raise comments regarding the document.
◍ What is the significance of follow-up processes in reviews?.
Answer: To ensure that corrections are satisfactorily accomplished before
allowing the project to progress.
◍ Musa-OP.
Answer: An OP construction using Musa procedures; used to drive UBST
and reliability assessment
◍ Waterfall QA focus by phase.
Answer: 1. Requirements/design/coding -> prevention2. Testing ->
removal3. Release/support -> containment
◍ Hazard.
, Answer: Condition that could lead to an accident
◍ Defect removal.
Answer: Finding and eliminating faults/ defects
◍ Fault.
Answer: Cause for failures
◍ What are non-conformities in project plans?.
Answer: Contract requirements not covered, incorrectly defined, or not
required by contract.
◍ Maintainability.
Answer: Ease of correction/ improvement/ adaptation
◍ What is the process for defining product metrics?.
Answer: Define metrics according to procedures, implement them, and
identify gaps between actual and expected results.
◍ What should be done after identifying gaps in product metrics?.
Answer: Develop software or hardware improvements to close the gaps.
◍ Operational Profile (OP).
Answer: Quantitative characterization of how a system is used // operations
and probabilities
◍ Occurrence probability.
Answer: Normalized usage probability for each operation (rates converted
so probabilities sum to 1)
◍ What is the formula for calculating HD Efficiency?.
Answer: HDE = HDYH / NHYC, where HDYH is total annual working
hours and NHYC is the number of HD calls.
◍ Test oracle.
Answer: A way to check the result and see if your system passed or failed
◍ Usage-Based Statistical Testing (USBT).
Answer: Testing guided by the OP to assess/ improve reliability
ASSURANCE PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ Defect containment.
Answer: Limiting the impact of remaining defects in operation
◍ What is documented in the inspection session findings report?.
Answer: It provides full documentation of identified errors during the
inspection.
◍ Who participates in formal design reviews?.
Answer: A group of professionals and stakeholders.
◍ What is the purpose of a formal design review (DR)?.
Answer: To evaluate a documented software project product and allow
professionals to raise comments regarding the document.
◍ What is the significance of follow-up processes in reviews?.
Answer: To ensure that corrections are satisfactorily accomplished before
allowing the project to progress.
◍ Musa-OP.
Answer: An OP construction using Musa procedures; used to drive UBST
and reliability assessment
◍ Waterfall QA focus by phase.
Answer: 1. Requirements/design/coding -> prevention2. Testing ->
removal3. Release/support -> containment
◍ Hazard.
, Answer: Condition that could lead to an accident
◍ Defect removal.
Answer: Finding and eliminating faults/ defects
◍ Fault.
Answer: Cause for failures
◍ What are non-conformities in project plans?.
Answer: Contract requirements not covered, incorrectly defined, or not
required by contract.
◍ Maintainability.
Answer: Ease of correction/ improvement/ adaptation
◍ What is the process for defining product metrics?.
Answer: Define metrics according to procedures, implement them, and
identify gaps between actual and expected results.
◍ What should be done after identifying gaps in product metrics?.
Answer: Develop software or hardware improvements to close the gaps.
◍ Operational Profile (OP).
Answer: Quantitative characterization of how a system is used // operations
and probabilities
◍ Occurrence probability.
Answer: Normalized usage probability for each operation (rates converted
so probabilities sum to 1)
◍ What is the formula for calculating HD Efficiency?.
Answer: HDE = HDYH / NHYC, where HDYH is total annual working
hours and NHYC is the number of HD calls.
◍ Test oracle.
Answer: A way to check the result and see if your system passed or failed
◍ Usage-Based Statistical Testing (USBT).
Answer: Testing guided by the OP to assess/ improve reliability
