The flow graph below shows the logic of a program for which 100% statement coverage and 100% decision coverage is required on exit from component testing.
The following test cases have been run:
Test Case 1 covering path P,Q,R,U
Test Case 2 covering path P,Q,S,V
Test Case 3 covering path P,Q,S,W,X
Test case 4 covering path P,Q,S,W,Y
Refer to the exhibit

You have been asked to write a testing strategy for the company. Which statement best explains how risk can be addressed within the testing strategy?

A booking system for a city bus service prices its fares according to the time of travel:
* Peak-time tariff starts at 0600 and finishes at 1000 am
* Off-peak tariff applies during all other times of service
* The bus service does not operate between 2300 and the start of the next day's peak service
Note that all times mentioned are inclusive.
When applying the equivalence partitioning test design technique, which of the following options, shows test case inputs that each fall into a different equivalence partition?

Which of the following tools would have been the MOST effective at detecting this defect prior to live implementation?

One of the roles in a review is that of moderator, which of the following best describes this role?