CTFL_Syll_4.0最も有効な質問と解答で勉強

An anti-intrusion system is battery powered and is activated by pressing the only available button.
To deactivate the system, the operator must enter a PIN code. The system will stay in alert mode within a configurable timeout and an alarm bell will ring if the system is not deactivated before the timeout expires. The following state transition diagram describes the behavior of the system:

Assume that each test case has the following form, in which states are indicated in quotation marks and transitions in square brackets: "State 1", [Transition 1], "State 2", [Transition 2], ...,
"State N-1", [Transition N-1], "State N".
Which of the following test cases, in addition to being valid, covers all states with minimal effort?

• A. "Inactive", [Enter PIN], "Active", [Sensor Activated], "Alert Mode", [Timeout expired], "Alarm bell rings"
• B. "Inactive", [Press Button], "Active", [Sensor Activated], "Alert Mode", [Press Button], "Alert Mode",
  [Timeout expired], "Alarm bell rings"
• C. "Inactive", [Press Button], "Active", [Sensor Activated], "Alert Mode", [Timeout expired], "Alarm bell rings"
• D. "Inactive", [Press Button], "Active", [Press Button], "Active", [Sensor Activated], "Alert Mode",
  [Timeout expired], "Alarm bell rings"

Which ONE of the following options BEST characterizes the Behavior-Driven Development (BDD) approach?

• A. Derives tests from acceptance criteria as part of the system design process. Tests are written before the part of the application is developed to satisfy the tests. Tests will persist as automated tests to ensure code maintainability in future adaptions/refactoring.
• B. Derives tests from acceptance criteria as part of the system design process. Tests are written before the part of the application is developed to satisfy the tests. Tests may persist as automated tests to ensure the code quality in future adaptions/refactoring.
• C. Expresses the desired behavior of an application with test cases written in a simple form of natural language that is easy to understand by stakeholders--usually using the Given/When/Then format. Test cases are then automatically translated into executable tests.
• D. Expresses the desired behavior of an application with test cases written in a simple form of natural language that is easy to understand by stakeholders--usually using the Preconditions/Input Values/Process/Output Values/Postconditions format. Test cases are then automatically translated into executable tests.

Which tools support delivery pipelines, automated build processes, and practices such as Continuous Integration/Continuous Delivery?

• A. Collaboration tools
• B. Test design and test implementation tools
• C. DevOps tools
• D. Test management tools

Which of the following statements about how different types of test tools support testers is true?

• A. The support offered by a bug prediction tool is often used by testers to track the bugs they found
• B. The support offered by a continuous integration tool is often leveraged by testers to automatically generate test cases from a model
• C. The support offered by a test data preparation tool is often leveraged by testers to run automated regression test suites
• D. The support offered by a performance testing tool is often leveraged by testers to run load tests

You designed two test cases, each of which achieves 50% statement coverage of your code.
Which sentence is true about the coverage achieved by the test suite TS, composed of these two test cases?

• A. TS must achieve at least 50% statement coverage
• B. TS must achieve more than 50% statement coverage
• C. TS must achieve 100% statement coverage
• D. TS must achieve exactly 50% statement coverage