A software tester is randomly generating invalid inputs in an attempt to crash the program. Which of the following is a software testing technique used to determine if a software program properly…

Mutating refers to mutation testing, which alters source code to evaluate test suite effectiveness, not a technique for feeding invalid inputs to a running program.

Randomizing is a generic term for introducing randomness and is not a recognized software testing methodology for invalid input handling.

Fuzzing (or fuzz testing) is the specific technique of bombarding a program with large volumes of random, invalid, or unexpected data to identify how it handles edge cases and whether it crashes or exposes vulnerabilities. It is widely used in security testing to find input validation flaws and memory corruption bugs. Tools like AFL and libFuzzer automate this process against real program execution.

Bounding refers to boundary value analysis, which tests values at the edges of valid input ranges rather than broadly generating invalid or malformed inputs.