1. What is Cobertura?
A. A coverage analysis tool for Java code
B. A unit testing tool for Java code
C. A profiling tool for Java code
Answer: A. A coverage analysis tool for Java code
2. What is code coverage?
A. The measure of the number of lines of code in a program
B. The measure of how well a program has been unit tested
C. The measure of the amount of code executed during testing
Answer: C. The measure of the amount of code executed during testing
3. What types of coverage does Cobertura measure?
A. Statement, branch, and path coverage
B. Line, function, and condition coverage
C. Block, event, and state coverage
Answer: A. Statement, branch, and path coverage
4. What is statement coverage?
A. The measure of how many statements have been executed during testing
B. The measure of how many functions have been executed during testing
C. The measure of how many lines of code have been executed during testing
Answer: A. The measure of how many statements have been executed during testing
5. What is branch coverage?
A. The measure of how many branches in the code have been executed during testing
B. The measure of how many functions have been executed during testing
C. The measure of how many lines of code have been executed during testing
Answer: A. The measure of how many branches in the code have been executed during testing
6. What is path coverage?
A. The measure of how many functions have been executed during testing
B. The measure of how many lines of code have been executed during testing
C. The measure of how many paths through the code have been executed during testing
Answer: C. The measure of how many paths through the code have been executed during testing
7. What is the difference between statement and branch coverage?
A. Statement coverage measures how many statements have been executed, while branch coverage measures how many branches in the code have been executed
B. Branch coverage measures how many statements have been executed, while statement coverage measures how many branches in the code have been executed
C. Statement and branch coverage both measure the same thing
Answer: A. Statement coverage measures how many statements have been executed, while branch coverage measures how many branches in the code have been executed
8. How does Cobertura generate coverage reports?
A. By instrumenting the code and generating an XML report
B. By running unit tests and generating an HTML report
C. By analyzing code complexity and generating a CSV report
Answer: A. By instrumenting the code and generating an XML report
9. How can Cobertura be integrated with Maven?
A. By adding the Cobertura plugin to the Maven POM file
B. By running Cobertura separately from Maven
C. By using a separate Maven profile for Cobertura
Answer: A. By adding the Cobertura plugin to the Maven POM file
10. What is the Cobertura report format?
A. HTML
B. CSV
C. XML
Answer: C. XML
11. Can Cobertura be used for code written in languages other than Java?
A. Yes, it can be used for any language
B. No, it can only be used for Java code
C. It can be used for other languages with some modifications
Answer: B. No, it can only be used for Java code
12. What is the maximum code coverage that can be achieved?
A. 100%
B. 90%
C. 80%
Answer: A. 100%
13. If a line of code is not executed during testing, is it considered uncovered?
A. Yes
B. No
C. It depends on the type of coverage being measured
Answer: A. Yes
14. Can Cobertura be integrated with Jenkins for continuous integration?
A. Yes
B. No
C. It depends on the version of Jenkins being used
Answer: A. Yes
15. What is the difference between Cobertura and JaCoCo?
A. There is no difference, they are the same tool
B. Cobertura is better for measuring branch coverage, while JaCoCo is better for measuring line coverage
C. JaCoCo is better for measuring branch coverage, while Cobertura is better for measuring line coverage
Answer: C. JaCoCo is better for measuring branch coverage, while Cobertura is better for measuring line coverage
16. Can Cobertura be used with other build tools besides Maven?
A. Yes
B. No
C. It depends on the build tool being used
Answer: A. Yes
17. Can Cobertura detect code that is not covered by unit tests?
A. Yes
B. No
C. It depends on the code being tested
Answer: A. Yes
18. How can code coverage be improved?
A. By adding more unit tests
B. By adding more comments to the code
C. By reducing the size of the code
Answer: A. By adding more unit tests
19. How can branch coverage be improved?
A. By adding more unit tests that cover all branches in the code
B. By adding more comments to the code
C. By optimizing the code
Answer: A. By adding more unit tests that cover all branches in the code
20. What is the purpose of Cobertura’s exclusion list?
A. To exclude certain classes or packages from the coverage report
B. To include certain classes or packages in the coverage report
C. To exclude certain methods from the coverage report
Answer: A. To exclude certain classes or packages from the coverage report
21. What is the purpose of Cobertura’s threshold configuration?
A. To set a minimum coverage level that must be achieved
B. To set a maximum code complexity level
C. To set a minimum code quality level
Answer: A. To set a minimum coverage level that must be achieved
22. What is the difference between Cobertura’s line coverage and function coverage?
A. Line coverage measures how many lines of code have been executed, while function coverage measures how many functions have been executed
B. Line coverage measures how many functions have been executed, while function coverage measures how many lines of code have been executed
C. Line and function coverage measure the same thing
Answer: A. Line coverage measures how many lines of code have been executed, while function coverage measures how many functions have been executed
23. How can Cobertura be used to improve code quality?
A. By identifying areas of the code that are not covered by unit tests
B. By identifying areas of the code that are overly complex
C. By identifying areas of the code that are not maintainable
Answer: A. By identifying areas of the code that are not covered by unit tests
24. How can Cobertura reports be customized?
A. By editing the XSL stylesheet used to transform the XML report
B. By editing the HTML report directly
C. By editing the XML report directly
Answer: A. By editing the XSL stylesheet used to transform the XML report
25. Can Cobertura be used with unit tests written in languages other than Java?
A. Yes
B. No
C. It depends on the language being used
Answer: A. Yes
26. What is the purpose of Cobertura’s instrumentation process?
A. To insert additional code into the program in order to measure coverage
B. To optimize the code
C. To reduce the amount of code in the program
Answer: A. To insert additional code into the program in order to measure coverage
27. How can Cobertura be used to measure the quality of a test suite?
A. By comparing code coverage to the number of tests in the suite
B. By measuring the code complexity of the test suite
C. By measuring the amount of time it takes the test suite to run
Answer: A. By comparing code coverage to the number of tests in the suite
28. Can Cobertura be used to measure coverage on legacy code?
A. Yes
B. No
C. It depends on the state of the legacy code
Answer: A. Yes
29. How can Cobertura be used to identify redundant code?
A. By identifying code that is never executed during testing
B. By measuring the length of the code
C. By analyzing the number of lines of code in the program
Answer: A. By identifying code that is never executed during testing
30. What is the purpose of Cobertura’s aggregation feature?
A. To combine multiple coverage reports into a single report
B. To divide a single coverage report into multiple reports
C. To merge multiple codebases into a single codebase
Answer: A. To combine multiple coverage reports into a single report
31. What is the purpose of Cobertura’s branch coverage report?
A. To show which branches in the code have been executed during testing
B. To show which statements in the code have been executed during testing
C. To show which functions in the code have been executed during testing
Answer: A. To show which branches in the code have been executed during testing
32. What is the purpose of Cobertura’s code complexity report?
A. To measure the complexity of the codebase
B. To measure the number of lines of code in the program
C. To measure the amount of time it takes the program to run
Answer: A. To measure the complexity of the codebase
33. How can Cobertura be used to identify code smells?
A. By identifying areas of the code with low coverage
B. By identifying areas of the code that are overly complex
C. By identifying areas of the code that are difficult to read
Answer: A. By identifying areas of the code with low coverage
34. What is the purpose of Cobertura’s statement coverage report?
A. To show which statements in the code have been executed during testing
B. To show which branches in the code have been executed during testing
C. To show which functions in the code have been executed during testing
Answer: A. To show which statements in the code have been executed during testing
35. How can Cobertura be used to identify performance issues in the code?
A. By measuring the time it takes the code to execute during testing
B. By measuring the number of lines of code in the program
C. By measuring the complexity of the codebase
Answer: A. By measuring the time it takes the code to execute during testing
36. What is the purpose of Cobertura’s path coverage report?
A. To show which paths through the code have been executed during testing
B. To show which branches in the code have been executed during testing
C. To show which statements in the code have been executed during testing
Answer: A. To show which paths through the code have been executed during testing
37. Can Cobertura be used to measure coverage on code that has already been released?
A. Yes
B. No
C. It depends on the state of the released code
Answer: B. No
38. What is the purpose of Cobertura’s coverage history report?
A. To show how coverage has changed over time
B. To show which branches in the code have been executed during testing
C. To show which functions in the code have been executed during testing
Answer: A. To show how coverage has changed over time
39. How can Cobertura be used to identify dead code?
A. By identifying code that is never executed during testing
B. By measuring the number of lines of code in the program
C. By analyzing the complexity of the codebase
Answer: A. By identifying code that is never executed during testing
40. What is the purpose of Cobertura’s coverage trend report?
A. To show whether coverage is increasing or decreasing over time
B. To show which branches in the code have been executed during testing
C. To show which statements in the code have been executed during testing
Answer: A. To show whether coverage is increasing or decreasing over time
41. How can Cobertura be used to identify areas of the code that need refactoring?
A. By identifying areas of the code that are overly complex or difficult to maintain
B. By measuring the amount of time it takes the test suite to run
C. By measuring the number of lines of code in the program
Answer: A. By identifying areas of the code that are overly complex or difficult to maintain
42. How can Cobertura be used with code that is still in development?
A. By integrating it into the build process and running it on a regular basis
B. By running it manually after each code change
C. By running it only at the end of the development process
Answer: A. By integrating it into the build process and running it on a regular basis
43. What is the purpose of Cobertura’s show-only-new-feature option?
A. To show only the new coverage added since the last test run
B. To show only the features that have not yet been tested
C. To show only the features that have already been tested
Answer: A. To show only the new coverage added since the last test run
44. How can Cobertura be used to identify code that is vulnerable to security attacks?
A. By identifying areas of the code with low coverage
B. By identifying areas of the code that are poorly written
C. By analyzing the code to identify potential vulnerabilities
Answer: C. By analyzing the code to identify potential vulnerabilities
45. What is the purpose of Cobertura’s coverage summary report?
A. To show a summary of the coverage data for the entire codebase
B. To show a summary of the coverage data for each individual class
C. To show a summary of the coverage data for each individual method
Answer: A. To show a summary of the coverage data for the entire codebase
46. How can Cobertura be used to improve code maintainability?
A. By identifying areas of the code that are overly complex or difficult to maintain
B. By measuring the amount of time it takes the test suite to run
C. By measuring the number of lines of code in the program
Answer: A. By identifying areas of the code that are overly complex or difficult to maintain
47. What is the purpose of Cobertura’s boundary report?
A. To identify the boundary conditions of the code being tested
B. To identify the areas of the code that are most likely to fail
C. To identify the areas of the code with the highest coverage
Answer: A. To identify the boundary conditions of the code being tested
48. How can Cobertura be used to improve the speed of the test suite?
A. By identifying areas of the code that take the longest to execute
B. By optimizing the test suite itself
C. By measuring the number of lines of code in the program
Answer: A. By identifying areas of the code that take the longest to execute
49. What is the purpose of Cobertura’s incremental analysis feature?
A. To only analyze the code that has changed since the last test run
B. To analyze the entire codebase before each test run
C. To analyze only the most complex parts of the code
Answer: A. To only analyze the code that has changed since the last test run
50. Can Cobertura be used to measure coverage on code that is written in other JVM languages besides Java?
A. Yes
B. No
C. It depends on the JVM language being used
Answer: A. Yes
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