Detecting Wild Pointers CTAL-TTA Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A development team is migrating a large C codebase to C++. The team wants to reduce wild pointer defects. Which C++ feature should the team adopt to most effectively prevent wild pointers?

   • AUse `std::unique_ptr` for all dynamically allocated objects
   • BUse `std::shared_ptr` for all objects, even those with single ownership
   • CUse `std::vector` instead of raw arrays
   • DUse `std::reference_wrapper` to avoid raw pointers
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2. 17application · medium

   A development team is adopting static analysis to reduce wild pointer defects in a legacy C codebase. The tool flags a pointer that is assigned a value inside a conditional block but is used outside that block. The test analyst needs to interpret this finding. What does the static analysis result indicate?

   • AThe pointer may be uninitialized on some execution paths, leading to a wild pointer
   • BThe pointer is definitely a dangling pointer because it is used after the block
   • CThe static analysis tool has a false positive and the code is safe
   • DThe pointer is correctly initialized because it is assigned in the conditional block
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4. 18foundation · easy

   Which programming error is a common cause of a wild pointer?

   • ACasting an integer to a pointer type
   • BAssigning a pointer to the address of a global variable
   • CUsing a pointer after the memory it points to has been freed
   • DDeclaring a pointer with the const qualifier
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5. 19foundation · easy

   Which tool is commonly used for dynamic analysis to detect wild pointers at runtime?

   • AGDB
   • BClang Static Analyzer
   • CGCC with -Wall flag
   • DValgrind
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6. 20expert · medium

   A test analyst is comparing static and dynamic analysis for detecting wild pointers in a safety-critical system. The system must be certified, and the certification authority requires evidence that the analysis is complete. Which statement accurately describes a limitation of static analysis in this context?

   • AStatic analysis can only detect defects that occur at runtime
   • BStatic analysis is guaranteed to find all wild pointer defects
   • CStatic analysis may report false positives that require manual review to confirm
   • DStatic analysis requires the target hardware to be effective
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