WBJECA 2025 Computer PYQ — A development team found 90 defects during the design phase of a … | Mathem Solvex | Mathem Solvex
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WBJECA 2025 — Computer PYQ
WBJECA | Computer | 2025
A development team found 90 defects during the design phase of a project. However, 10 additional design defects were discovered during the testing phase. What is the Defect Removal Efficiency (DRE) for the design phase?
Choose the correct answer:
A.
10%
B.
90%
(Correct Answer)
C.
80%
D.
95%
Correct Answer:
90%
Explanation
To calculate the DRE for a specific phase, we use the ratio of defects found in that phase to the total number of defects that originated in that phase.
Identify the variables:
E (Defects found in the design phase) = 90
L (Defects that leaked to the testing phase) = 10
Total Defects originating in design = E+L=90+10=100
Apply the DRE Formula:
DRE=(E+LE)×100
Calculation:
DRE=(90+1090)×100
DRE=(10090)×100
DRE=0.9×100
DRE=90%
Correct Answer:(B) 90%
Explanation
To calculate the DRE for a specific phase, we use the ratio of defects found in that phase to the total number of defects that originated in that phase.
Identify the variables:
E (Defects found in the design phase) = 90
L (Defects that leaked to the testing phase) = 10
Total Defects originating in design = E+L=90+10=100
