Section: Volume B
Explanation:
Preventative controls are the controls that detect the problem before it occurs. They attempt to predict potential problems and make adjustments to prevent those problems to occur in near future. This prediction is being made by monitoring both the system's operations and its inputs.
Incorrect Answers:
A: Deterrent controls are similar to the preventative controls, but they diminish or reverse the attraction of the environment to prevent risk from occurring instead of making adjustments to the environment.
B: Detective controls simply detect and report on the occurrence of a problems. They identify specific symptoms to potential problems.
C: Compensation controls ensure that normal business operations continue by applying appropriate resource.

Explanation/Reference:
Explanation:
A trigger is a warning sign or a condition that a risk event is likely to occur within the project.
Incorrect Answers:
A: Issues are events that come about as a result of risk events. Risks become issues only after they have actually occurred.
B: A contingency response is a pre-planned response for a risk event, such as a rollback plan.
D: A threshold is a limit that the risk passes to actually become an issue in the project.