Which term is sometimes called a logic error and refers to faults in software?

• A. Bug
• B. Crash
• C. Logic error
• D. Warning

Answer: (C)

A logic error is when the program runs but behaves incorrectly because the underlying reasoning or algorithm is flawed. This type of fault stems from how the code is written to implement the intended behavior, not from the language’s grammar or from runtime failures. That’s why the term specifically describes the mismatch between what the code is supposed to do and what it actually does.

For example, if a loop uses the wrong boundary or a condition is miswritten, the program might produce incorrect results even though it compiles and runs without crashing. This is exactly a logic error: the logic guiding the computation is faulty, not a syntax or runtime issue.

If we contrast with the other terms: a crash is a sudden, abnormal termination of the program, a warning is merely a diagnostic message, and a bug is a general term for any fault in software, not a precise type of fault.