Eccouncil certsexpert download Full Version 312-50v11 Exam by Alayah q264 vce pdf

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Exam Name:	Certified Ethical Hacker Exam (CEH v11)
Exam Code:	312-50v11 Dumps
Vendor:	ECCouncil	Certification:	CEH v11
Questions:	528 Q&A's	Shared By:	alayah

Question 72

You are programming a buffer overflow exploit and you want to create a NOP sled of 200 bytes in the program exploit.c

Questions 72

What is the hexadecimal value of NOP instruction?

Options:

0x60

0x80

0x70

0x90

Discussion

Question 73

In the field of cryptanalysis, what is meant by a “rubber-hose" attack?

Options:

Attempting to decrypt cipher text by making logical assumptions about the contents of the original plain text.

Extraction of cryptographic secrets through coercion or torture.

Forcing the targeted key stream through a hardware-accelerated device such as an ASIC.

A backdoor placed into a cryptographic algorithm by its creator.

Discussion

Question 74

In Trojan terminology, what is a covert channel?

Questions 74

Options:

A channel that transfers information within a computer system or network in a way that violates the security policy

A legitimate communication path within a computer system or network for transfer of data

It is a kernel operation that hides boot processes and services to mask detection

It is Reverse tunneling technique that uses HTTPS protocol instead of HTTP protocol to establish connections

Discussion

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Question 75

What hacking attack is challenge/response authentication used to prevent?

Options:

Replay attacks

Scanning attacks

Session hijacking attacks

Password cracking attacks

Discussion