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Free CompTIA PT0-003 Exam Braindumps (page: 25)

Page 12 of 61
PDF with 183 Questions

During a vulnerability assessment, a penetration tester configures the scanner sensor and performs the initial vulnerability scanning under the client's internal network. The tester later discusses the results with the client, but the client does not accept the results. The client indicates the host and assets that were within scope are not included in the vulnerability scan results.
Which of the following should the tester have done?

  1. Rechecked the scanner configuration.
  2. Performed a discovery scan.
  3. Used a different scan engine.
  4. Configured all the TCP ports on the scan.

Answer(s): B

Explanation:

When the client indicates that the scope's hosts and assets are not included in the vulnerability scan results, it suggests that the tester may have missed discovering all the devices in the scope. Here's the best course of action:
Performing a Discovery Scan:
Purpose: A discovery scan identifies all active devices on the network before running a detailed vulnerability scan. It ensures that all in-scope devices are included in the assessment. Process: The discovery scan uses techniques like ping sweeps, ARP scans, and port scans to identify active hosts and services.
Comparison with Other Actions:
Rechecking the Scanner Configuration (A): Useful but not as comprehensive as ensuring all hosts are discovered.
Using a Different Scan Engine (C): Not necessary if the issue is with host discovery rather than the scanner's capability.
Configuring All TCP Ports on the Scan (D): Helps in detailed scanning but does not address missing hosts.
Performing a discovery scan ensures that all in-scope devices are identified and included in the vulnerability assessment, making it the best course of action.



[Information Gathering and Vulnerability Scanning]
Which of the following describes the process of determining why a vulnerability scanner is not providing results?

  1. Root cause analysis
  2. Secure distribution
  3. Peer review
  4. Goal reprioritization

Answer(s): A

Explanation:

Root cause analysis involves identifying the underlying reasons why a problem is occurring. In the context of a vulnerability scanner not providing results, performing a root cause analysis would help determine why the scanner is failing to deliver the expected output. Here's why option A is correct:
Root Cause Analysis: This is a systematic process used to identify the fundamental reasons for a problem. It involves investigating various potential causes and pinpointing the exact issue that is preventing the vulnerability scanner from working correctly. Secure Distribution: This refers to the secure delivery and distribution of software or updates, which is not relevant to troubleshooting a vulnerability scanner. Peer Review: This involves evaluating work by others in the same field to ensure quality and accuracy, but it is not directly related to identifying why a tool is malfunctioning. Goal Reprioritization: This involves changing the priorities of goals within a project, which does not address the technical issue of the scanner not working.
Reference from Pentest:
Horizontall HTB: Demonstrates the process of troubleshooting and identifying issues with tools and their configurations to ensure they work correctly.
Writeup HTB: Emphasizes the importance of thorough analysis to understand why certain security tools may fail during an assessment.



[Tools and Code Analysis]
During a security audit, a penetration tester wants to run a process to gather information about a target network's domain structure and associated IP addresses.
Which of the following tools should the tester use?

  1. Dnsenum
  2. Nmap
  3. Netcat
  4. Wireshark

Answer(s): A

Explanation:

Dnsenum is a tool specifically designed to gather information about DNS, including domain structure and associated IP addresses. Here's why option A is correct:
Dnsenum: This tool is used for DNS enumeration and can gather information about a domain's DNS records, subdomains, IP addresses, and other related information. It is highly effective for mapping out a target network's domain structure.
Nmap: While a versatile network scanning tool, Nmap is more focused on port scanning and service detection rather than detailed DNS enumeration.
Netcat: This is a network utility for reading and writing data across network connections, not for DNS enumeration.
Wireshark: This is a network protocol analyzer used for capturing and analyzing network traffic but not specifically for gathering DNS information.
Reference from Pentest:

Anubis HTB: Shows the importance of using DNS enumeration tools like Dnsenum to gather detailed information about the target's domain structure.
Forge HTB: Demonstrates the process of using specialized tools to collect DNS and IP information efficiently.



[Tools and Code Analysis]
During an external penetration test, a tester receives the following output from a tool:

test.comptia.org info.comptia.org vpn.comptia.org exam.comptia.org

Which of the following commands did the tester most likely run to get these results?

  1. nslookup -type=SOA comptia.org
  2. amass enum -passive -d comptia.org
  3. nmap -Pn -sV -vv -A comptia.org
  4. shodan host comptia.org

Answer(s): B

Explanation:

The tool and command provided by option B are used to perform passive DNS enumeration, which can uncover subdomains associated with a domain. Here's why option B is correct:
amass enum -passive -d comptia.org: This command uses the Amass tool to perform passive DNS enumeration, effectively identifying subdomains of the target domain. The output provided (subdomains) matches what this tool and command would produce. nslookup -type=SOA comptia.org: This command retrieves the Start of Authority (SOA) record, which does not list subdomains.
nmap -Pn -sV -vv -A comptia.org: This Nmap command performs service detection and aggressive scanning but does not enumerate subdomains.

shodan host comptia.org: Shodan is an internet search engine for connected devices, but it does not perform DNS enumeration to list subdomains.
Reference from Pentest:
Writeup HTB: Demonstrates the use of DNS enumeration tools like Amass to uncover subdomains during external assessments.
Horizontall HTB: Highlights the effectiveness of passive DNS enumeration in identifying subdomains and associated information.






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