Exam 312-50v13 Topic 1 Question 116 Discussion

Actual exam question for ECCouncil's 312-50v13 exam
Question #: 116
Topic #: 1
You are programming a buffer overflow exploit and you want to create a NOP sled of 200 bytes in the program exploit.
What is the hexadecimal value of NOP instruction?

Suggested Answer: D Vote an answer

A NOP (No Operation) instruction tells the CPU to do nothing for one instruction cycle. In exploit development:
A NOP sled is a long sequence of NOPs (0x90) that increases the chance of the instruction pointer landing before the shellcode.
0x90 is the x86 opcode for the NOP instruction.
From CEH v13 Courseware:
Module 6: Malware Threats # Shellcode and Buffer Overflow
Reference:CEH v13 Study Guide - Module 6: Writing Exploits and NOP SledsIntel x86 Instruction Set Reference - NOP = 0x90
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by Genevieve at Apr 24, 2026, 02:54 AM

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