S2 and O2 are the finishing state and the output(s) from the test case1. The question asks about a test case that starts at S1 and triggers 4 events in sequence: E1, E4, E5, E7. The question refers to a state diagram that shows the logic of a system with six states (S1, S2, S3, S4, S5, S6) and seven events (E1, E2, E3, E4, E5, E6, E7). The state diagram also shows four outputs (O1, O2, O3, O4) that are produced by some events. The state diagram is shown below:
!state diagram
To answer this question, we need to follow the path of the test case on the state diagram and observe the state transitions and outputs that occur. The path of the test case is:
Start at S1
Trigger E1
Transition to S2
Trigger E4
Transition to S3
Trigger E5
Transition to S2
Output O2
Trigger E7
Transition to S6
Therefore, the finishing state of the test case is S2 and the output(s) from the test case is O2. Hence, D is the correct answer.
