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312-50v11 Exam Dumps - ECCouncil CEH v11 Questions and Answers

Question # 64

An Intrusion Detection System (IDS) has alerted the network administrator to a possibly malicious sequence of packets sent to a Web server in the network’s external DMZ. The packet traffic was captured by the IDS and saved to a PCAP file. What type of network tool can be used to determine if these packets are genuinely malicious or simply a false positive?

Options:

A.

Protocol analyzer

B.

Network sniffer

C.

Intrusion Prevention System (IPS)

D.

Vulnerability scanner

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Question # 65

Suppose that you test an application for the SQL injection vulnerability. You know that the backend database

is based on Microsoft SQL Server. In the login/password form, you enter the following credentials:

Username: attack' or 1=1 -

Password: 123456

Based on the above credentials, which of the following SQL commands are you expecting to be executed by the server, if there is indeed an SQL injection vulnerability?

Options:

A.

select * from Users where UserName = ‘attack’ ’ or 1=1 -- and UserPassword = ‘123456’

B.

select * from Users where UserName = ‘attack’ or 1=1 -- and UserPassword = ‘123456’

C.

select * from Users where UserName = ‘attack or 1=1 -- and UserPassword = ‘123456’

D.

select * from Users where UserName = ‘attack’ or 1=1 --’ and UserPassword = ‘123456’

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Question # 66

Mike, a security engineer, was recently hired by BigFox Ltd. The company recently experienced disastrous DoS attacks. The management had instructed Mike to build defensive strategies for the company's IT infrastructure to thwart DoS/DDoS attacks. Mike deployed some countermeasures to handle jamming and scrambling attacks. What is the countermeasure Mike applied to defend against jamming and scrambling attacks?

Options:

A.

Allow the usage of functions such as gets and strcpy

B.

Allow the transmission of all types of addressed packets at the ISP level

C.

Implement cognitive radios in the physical layer

D.

A Disable TCP SYN cookie protection

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Question # 67

Which of the following provides a security professional with most information about the system’s security posture?

Options:

A.

Phishing, spamming, sending trojans

B.

Social engineering, company site browsing tailgating

C.

Wardriving, warchalking, social engineering

D.

Port scanning, banner grabbing service identification

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Question # 68

Scenario: Joe turns on his home computer to access personal online banking. When he enters the URL www.bank.com. the website is displayed, but it prompts him to re-enter his credentials as if he has never visited the site before. When he examines the website URL closer, he finds that the site is not secure and the web address appears different. What type of attack he is experiencing?.

Options:

A.

Dos attack

B.

DHCP spoofing

C.

ARP cache poisoning

D.

DNS hijacking

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Question # 69

Which of the following is the primary objective of a rootkit?

Options:

A.

It opens a port to provide an unauthorized service

B.

It creates a buffer overflow

C.

It replaces legitimate programs

D.

It provides an undocumented opening in a program

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Question # 70

What is a NULL scan?

Options:

A.

A scan in which all flags are turned off

B.

A scan in which certain flags are off

C.

A scan in which all flags are on

D.

A scan in which the packet size is set to zero

E.

A scan with an illegal packet size

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Question # 71

Websites and web portals that provide web services commonly use the Simple Object Access Protocol (SOAP).

Which of the following is an incorrect definition or characteristics of the protocol?

Options:

A.

Exchanges data between web services

B.

Only compatible with the application protocol HTTP

C.

Provides a structured model for messaging

D.

Based on XML

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Question # 72

Shellshock allowed an unauthorized user to gain access to a server. It affected many Internet-facing services, which OS did it not directly affect?

Options:

A.

Linux

B.

Unix

C.

OS X

D.

Windows

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Question # 73

A regional bank hires your company to perform a security assessment on their network after a recent data breach. The attacker was able to steal financial data from the bank by compromising only a single server. Based on this information, what should be one of your key recommendations to the bank?

Options:

A.

Place a front-end web server in a demilitarized zone that only handles external web traffic

B.

Require all employees to change their anti-virus program with a new one

C.

Move the financial data to another server on the same IP subnet

D.

Issue new certificates to the web servers from the root certificate authority

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Question # 74

What would you enter if you wanted to perform a stealth scan using Nmap?

Options:

A.

nmap -sM

B.

nmap -sU

C.

nmap -sS

D.

nmap -sT

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Question # 75

Henry is a penetration tester who works for XYZ organization. While performing enumeration on a client organization, he queries the DNS server for a specific cached DNS record. Further, by using this cached record, he determines the sites recently visited by the organization's user. What is the enumeration technique used by Henry on the organization?

Options:

A.

DNS zone walking

B.

DNS cache snooping

C.

DNS SEC zone walking

D.

DNS cache poisoning

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Question # 76

Session splicing is an IDS evasion technique in which an attacker delivers data in multiple, small sized packets to the target computer, making it very difficult for an IDS to detect the attack signatures. Which tool can be used to perform session splicing attacks?

Options:

A.

tcpsplice

B.

Burp

C.

Hydra

D.

Whisker

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Question # 77

Attacker Lauren has gained the credentials of an organization's internal server system, and she was often logging in during irregular times to monitor the network activities. The organization was skeptical about the login times and appointed security professional Robert to determine the issue. Robert analyzed the compromised device to find incident details such as the type of attack, its severity, target, impact, method of propagation, and vulnerabilities exploited. What is the incident handling and response (IH&R) phase, in which Robert has determined these issues?

Options:

A.

Preparation

B.

Eradication

C.

Incident recording and assignment

D.

Incident triage

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Question # 78

What type of a vulnerability/attack is it when the malicious person forces the user’s browser to send an authenticated request to a server?

Options:

A.

Session hijacking

B.

Server side request forgery

C.

Cross-site request forgery

D.

Cross-site scripting

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Exam Code: 312-50v11
Exam Name: Certified Ethical Hacker Exam (CEH v11)
Last Update: Jul 5, 2025
Questions: 528
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