Introduction / Context:
Debugging is the systematic process of finding defects (bugs) and resolving them so that software behaves as intended. A debugging utility—commonly called a debugger—is a core tool for developers. This question evaluates whether you understand the purpose and capabilities of that tool class.
Given Data / Assumptions:
- A “bug” is any defect causing incorrect results, crashes, or unintended behavior.
- A debugger provides breakpoints, single-stepping, variable inspection, and call-stack views.
- Debuggers can attach to running processes or start programs under control.
Concept / Approach:
Debuggers help isolate the conditions under which faults appear, view program state at critical moments, and verify fixes. They do not automatically “repair” bugs; rather, they enable a developer to determine root causes and implement code changes that remove the defect. Complementary tools include profilers (performance) and linters (style/static checks).
Step-by-Step Solution:
Set a breakpoint near suspicious logic.Run until break; inspect local variables, memory, and registers.Step through statements to observe control flow and data mutations.Modify code to fix the issue and re-test under the debugger.
Verification / Alternative check:
Reproduce the original failing case; confirm the corrected program now passes test cases without the bug.
Why Other Options Are Wrong:
Incorrect: Misstates the primary purpose of a debugger.Only profiles performance: That is the role of a profiler, not a debugger.Used solely for code formatting: Formatting is handled by linters/formatters, not debuggers.
Common Pitfalls:
Assuming debuggers automatically fix code; they provide insight, not auto-repair.Confusing logging with interactive debugging; both are useful but different.
Final Answer:
Correct
Discussion & Comments