What is the process of converting a program from binary form back into assembly language?

• A. Compiling
• B. Assembling
• C. Interpreting
• D. Disassembling

Answer: (D)

Disassembly is the process of converting a program from binary back into assembly language. Binary machine code is the processor’s native instructions, stored as bytes and interpreted by the CPU. A disassembler reads those bytes and translates each opcode and its operands into the human-readable mnemonics and syntax of assembly, producing a listing that shows what the program does at the instruction level.

This is different from compiling, which turns high-level source code into binary; from assembling, which takes assembly language and produces binary; and from interpreting, which executes code directly or translates it on the fly without producing a separate assembly listing. Disassembly is commonly used for reverse engineering, debugging, or analyzing what a compiled binary will do when source code isn’t available.