Using Models to Detect Defects CTAL-TA Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   When constructing a state model for a login system, what should be represented to uncover potential defects?

   • AOnly the states that are visible to the user
   • BAll possible states and transitions, including error and timeout states
   • COnly the transitions that are triggered by user actions
   • DOnly the successful login path
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A team is testing a system that calculates insurance premiums based on a complex set of rules involving age, driving history, vehicle type, and coverage level. The rules have many combinations and the team wants to use a model to systematically detect defects in the rule logic. Which type of model is most suitable?

   • AA process model showing the steps of the premium calculation process.
   • BA data flow model showing how premium data flows through the system.
   • CA decision table model that lists all combinations of conditions and the corresponding actions.
   • DA state transition model showing the different states of an insurance policy.
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A team is developing a mobile banking app. They want to use a model to detect defects related to the user's ability to log in, check balance, transfer funds, and log out. The app has strict session timeout rules and requires re-authentication after certain actions. Which type of model would be most effective for systematically detecting defects in these user flows?

   • AA process model showing the business workflow for fund transfers, including approval steps and notifications.
   • BA decision table model listing all combinations of input conditions for the login and transfer functions.
   • CA data flow model showing how data moves between the user interface, business logic, and database layers.
   • DA state transition model showing the possible states (e.g., logged out, authenticated, session expired) and the events that cause transitions.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A test analyst is using a model-based testing tool to generate test cases from a state model of an e-commerce checkout process. The tool supports various coverage criteria. The team wants to ensure that every possible sequence of events (up to a certain length) is tested to uncover interaction defects. Which coverage criterion should the analyst select?

   • AState coverage
   • BPath coverage (with a length limit)
   • CTransition coverage
   • DDecision coverage
   Reveal Solution Discussion Select an answer first
6. 20application · medium

   A test analyst is introducing model-based defect detection to a team that is skeptical about its value. The analyst wants to demonstrate how models can help find defects that are often missed by traditional testing. Which example best illustrates the systematic defect detection capability of models?

   • AUsing a state model to identify missing transitions for error conditions, such as network failures during a transaction.
   • BUsing a model to generate test data for boundary value analysis.
   • CUsing a model to automate the execution of existing test cases.
   • DUsing a model to document the system architecture for the development team.
   Reveal Solution Discussion Select an answer first