CAST CAST - Test Metrics and Measurement Questions and Answers

Question 1

What is a software test metric?

Accepted Answer

A quantitative measure used to evaluate some aspect of software testing

Answer

A tool used to automate test execution

Answer

A document that describes the test strategy

Answer

A checklist for verifying test case completeness

Question 2

Which of the following is an example of a process metric in software testing?

Accepted Answer

Test case execution rate

Answer

Number of defects found per module

Answer

Defect detection percentage

Answer

Customer-reported defects post-release

Question 3

What does 'test coverage' measure?

Accepted Answer

The proportion of the system that has been exercised by tests

Answer

The number of testers assigned to a project

Answer

The ratio of passed tests to failed tests

Answer

The total time spent on testing activities

Question 4

What is 'defect density'?

Accepted Answer

The number of confirmed defects per unit size of the software

Answer

The severity level of defects found in testing

Answer

The time it takes to fix a defect once found

Answer

The percentage of test cases that uncover defects

Question 5

Which formula correctly calculates Defect Removal Efficiency (DRE)?

Accepted Answer

DRE = Defects found before release / (Defects found before + after release) × 100%

Answer

DRE = Defects fixed / Total defects reported

Answer

DRE = Total test cases / Defects found

Answer

DRE = Defects reopened / Defects closed

Question 6

What is the purpose of tracking 'test execution progress' as a metric?

Accepted Answer

To monitor how many test cases have been run versus planned to predict completion

Answer

To determine the salary of testers

Answer

To count the total number of requirements

Answer

To evaluate the performance of individual developers