Which term describes a software program that remains functional even when faced with invalid input or missing resources?

• A. Documentation
• B. Catch
• C. Robust Programs
• D. Comments

Answer: (C)

Robustness is the quality of software that keeps functioning even when things don’t go as expected, like invalid input or missing resources. A robust program anticipates potential failures, validates input, handles errors gracefully, and uses safe defaults or fallbacks so essential features continue to work rather than crashing. Documentation describes how to use the software; it doesn’t influence runtime behavior. Catch is a mechanism for handling errors in code, not the overall trait of the program. Comments are non-executable notes and don’t affect how the program runs. So the term that best describes this behavior is robust programs.