Using Static Analysis for Improving Maintainability CTAL-TTA Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A static analysis tool flags a 'lazy class' smell: a class that does too little to justify its existence. The team wants to improve maintainability. Which action is most appropriate?

   • AMerge the lazy class into the class that uses it most.
   • BConvert the lazy class into an interface.
   • CAdd more methods to the lazy class to make it more useful.
   • DIgnore the smell because lazy classes are harmless.
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2. 22foundation · medium

   When interpreting a static analysis report, which type of finding should typically be prioritized for maintainability improvement?

   • AFindings in generated code that is never manually edited
   • BFindings in rarely used modules with low complexity
   • CFindings in newly written code that follows best practices
   • DFindings in frequently modified modules with high complexity
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4. 23foundation · medium

   What is a limitation of static analysis tools when assessing maintainability?

   • AThey can detect all types of code smells automatically
   • BThey can replace the need for human code reviews
   • CThey are unable to measure cyclomatic complexity
   • DThey cannot identify issues that require runtime data or dynamic behavior
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5. 24application · medium

   A team uses a static analysis tool to assess maintainability. The tool reports a high 'data clump' smell in several classes. The team is unsure whether to refactor. Which limitation of static analysis should the team consider before acting?

   • AStatic analysis requires a running application to detect data clumps.
   • BStatic analysis may produce false positives that require human judgment to confirm.
   • CStatic analysis cannot detect data clumps because it only analyzes syntax.
   • DStatic analysis will automatically refactor the data clumps if configured.
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6. 25application · medium

   A team uses a static analysis tool that reports cyclomatic complexity, coupling, and cohesion metrics. The tool does not report on code documentation quality. The team wants a comprehensive maintainability assessment. What should they do?

   • AConclude that maintainability is good because the tool reports no issues.
   • BIgnore documentation because it does not affect maintainability.
   • CSwitch to a different static analysis tool that reports documentation metrics.
   • DSupplement the static analysis with code reviews to assess documentation and readability.
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