CompTIA CS0-003 Exam Dumps

An analyst investigated a website and produced the following: Starting Nmap 7.92 ( https://nmap.org ) at 2022-07-21 10:21 CDT Nmap scan report for insecure.org (45.33.49.119) Host is up (0.054s latency). rDNS record for 45.33.49.119: ack.nmap.org Not shown: 95 filtered tcp ports (no-response) PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 7.4 (protocol 2.0) 25/tcp closed smtp 80/tcp open http Apache httpd 2.4.6 113/tcp closed ident 443/tcp open ssl/http Apache httpd 2.4.6 Service Info: Host: issues.nmap.org Service detection performed. Please report any incorrect results at https://nmap .org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 20.52 seconds Which of the following syntaxes did the analyst use to discover the application versions on this vulnerable website?

A. nmap-sS -T4 -F insecure.org 
B. nmap-0 insecure.org 
C. nmap-sV -T4 -F insecure.org 
D. nmap-A insecure.org 

Answer: B

A vulnerability manager analyzes suspicious data after scanning a database. Which of the following should the manager do to prioritize the remediation tasks?

A. Conduct further analysis and send the findings report to the incident response team.
 B. Perform an assessment in the command line and determine if there are true or false positives.
 C. Identify the impact level and create a ticket that includes the time frame for fixing the issue. 
D. Apply compensating controls and advise an analyst to document the problem in a risk register. 

Answer: B

An analyst receives an alert for suspicious IIS log activity and reviews the following entries: 2024-05-23 15:57:05 10.203.10.16 HEAT / - 80 - 10.203.10.17 DirBuster-1.0- RC1+(http://www.owasp.org/index.php/Category:OWASP_DirBuster_Project) ... Which of the following will the analyst infer from the logs?

A. An attacker is performing network lateral movement. 
B. An attacker is conducting reconnaissance of the website. 
C. An attacker is exfiltrating data from the network. 
D. An attacker is cloning the website. 

Answer: B

Which of the following best explains the importance of network microsegmentation as part of a Zero Trust architecture? 

A. To allow policies that are easy to manage and less granular 
B. To increase the costs associated with regulatory compliance
 C. To limit how far an attack can spread 
D. To reduce hardware costs with the use of virtual appliances 

Answer: C

A cybersecurity analyst has been assigned to the threat-hunting team to create a dynamic detection strategy based on behavioral analysis and attack patterns. Which of the following best describes what the analyst will be creating?

A. Bots 
B. loCs
C. TTPs
 D. Signatures 

Answer: C

A company classifies security groups by risk level. Any group with a high-risk classification requires multiple levels of approval for member or owner changes. Which of the following inhibitors to remediation is the company utilizing?

A. Organizational governance 
B. MOU 
C. SLA 
D. Business process interruption 

Answer: A

Which of the following are the most relevant factors related to vulnerability management reporting and communication within an organization? 

A. Risk assessment, asset inventory, business impact analysis, and business continuity plans 
B. Patch availability, mean time to remediate, dependencies, and disaster recovery plans
 C. False-positive rates, alert volume and characteristics, mean time to detect, and skills inventory 
D. Risk severity levels, timelines, dependencies, and remediation ownership 

Answer: D

A security analyst needs to identify the devices in a critical infrastructure network that handles an oil and gas pipeline. The network has devices connected over IPv4 using either HTTP or Modbus protocols running on the standard ports. Which of the following approaches should the analyst use to achieve the objective?

A. Employ the IT vulnerability scanner to target ports 80 and 502. 
B. Use banner grabbing with Netcat on TCP ports 80 and 502. 
C. Perform an Nmap -sS -A -p 80,502 scan. 
D. Scan the ICS network using Masscan --open-only -p80,502.

Answer: B

An analyst reviews the following web server log entries: %2E%2E/%2E%2E/%2ES2E/%2E%2E/%2E%2E/%2E%2E/etc/passwd No attacks or malicious attempts have been discovered. Which of the following most likely describes what took place?

A. A SQL injection query took place to gather information from a sensitive file.
 B. A PHP injection was leveraged to ensure that the sensitive file could be accessed. 
C. Base64 was used to prevent the IPS from detecting the fully encoded string. 
D. Directory traversal was performed to obtain a sensitive file for further reconnaissance. 

Answer: D

Which of the following stakeholders are most likely to receive a vulnerability scan report? (Select two). 

A. Executive management 
B. Law enforcement 
C. Marketing 
D. Legal 
E. Product owner 
F. Systems admininstration 

Answer: A,F

A Chief Information Security Officer wants to implement security by design, starting …… vulnerabilities, including SQL injection, FRI, XSS, etc. Which of the following would most likely meet the requirement?

A. Reverse engineering 
B. Known environment testing 
C. Dynamic application security testing 
D. Code debugging 

Answer: C

Which of the following threat actors is most likely to target a company due to its questionable environmental policies?

A. Hacktivist 
B. Organized crime 
C. Nation-state 
D. Lone wolf 

Answer: A

A security administrator has found indications of dictionary attacks against the company's external-facing portal. Which of the following should be implemented to best mitigate the password attacks?

A. Multifactor authentication 
B. Password complexity 
C. Web application firewall 
D. Lockout policy 

Answer: D

During an incident, analysts need to rapidly investigate by the investigation and leadership teams. Which of the following best describes how PII should be safeguarded during an incident?

A. Implement data encryption and close the data so only the company has access. 
B. Ensure permissions are limited in the investigation team and encrypt the data. 
C. Implement data encryption and create a standardized procedure for deleting data that is no longer needed. 
D. Ensure that permissions are open only to the company. 

Answer: B

During an incident involving phishing, a security analyst needs to find the source of the malicious email. Which of the following techniques would provide the analyst with this information?

A. Header analysis 
B. Packet capture 
C. SSL inspection 
D. Reverse engineering 

Answer: A

A network analyst notices a long spike in traffic on port 1433 between two IP addresses on opposite sides of a WAN connection. Which of the following is the most likely cause? 

A. A local red team member is enumerating the local RFC1918 segment to enumerate hosts. 
B. A threat actor has a foothold on the network and is sending out control beacons. 
C. An administrator executed a new database replication process without notifying the SOC. 
D. An insider threat actor is running Responder on the local segment, creating traffic replication. 

Answer: C

A security analyst needs to develop a solution to protect a high-value asset from an exploit like a recent zero-day attack. Which of the following best describes this risk management strategy?

A. Avoid 
B. Transfer 
C. Accept 
D. Mitigate 

Answer: D

An incident responder was able to recover a binary file through the network traffic. The binary file was also found in some machines with anomalous behavior. Which of the following processes most likely can be performed to understand the purpose of the binary file?

A. File debugging 
B. Traffic analysis 
C. Reverse engineering 
D. Machine isolation 

Answer: C

An organization is conducting a pilot deployment of an e-commerce application. The application's source code is not available. Which of the following strategies should an analyst recommend to evaluate the security of the software? 

A. Static testing 
B. Vulnerability testing 
C. Dynamic testing
D. Penetration testing 

Answer: D

An organization utilizes multiple vendors, each with its own portal that a security analyst must sign in to daily. Which of the following is the best solution for the organization to use to eliminate the need for multiple authentication credentials?

A. API 
B. MFA 
C. SSO 
D. VPN 

Answer: C

A vulnerability analyst is writing a report documenting the newest, most critical vulnerabilities identified in the past month. Which of the following public MITRE repositories would be best to review?

A. Cyber Threat Intelligence 
B. Common Vulnerabilities and Exposures 
C. Cyber Analytics Repository 
D. ATT&CK 

Answer: B

A threat hunter seeks to identify new persistence mechanisms installed in an organization's environment. In collecting scheduled tasks from all enterprise workstations, the following host details are aggregated: Which of the following actions should the hunter perform first based on the details above? 

A. Acquire a copy of taskhw.exe from the impacted host 
B. Scan the enterprise to identify other systems with taskhw.exe present 
C. Perform a public search for malware reports on taskhw.exe. 
D. Change the account that runs the -caskhw. exe scheduled task

Answer: C

During a security incident at a healthcare facility, an unauthorized user downloads multiple patients’ PHI records. Which of the following is the best reason for the healthcare facility to communicate with the affected patients regarding the incident?

A. To meet regulatory requirements 
B. To appease the stakeholders 
C. To avoid legal liability 
D. To get support from law enforcement

Answer: A

An incident response analyst is investigating the root cause of a recent malware outbreak. Initial binary analysis indicates that this malware disables host security services and performs cleanup routines on it infected hosts, including deletion of initial dropper and removal of event log entries and prefetch files from the host. Which of the following data sources would most likely reveal evidence of the root cause? (Select two).

A. Creation time of dropper 
B. Registry artifacts 
C. EDR data 
D. Prefetch files 
E. File system metadata 
F. Sysmon event log 

Answer: B,C

An analyst notices there is an internal device sending HTTPS traffic with additional characters in the header to a known-malicious IP in another country. Which of the following describes what the analyst has noticed?

A. Beaconing 
B. Cross-site scripting 
C. Buffer overflow 
D. PHP traversal 

Answer: A

An analyst finds that an IP address outside of the company network that is being used to run network and vulnerability scans across external-facing assets. Which of the following steps of an attack framework is the analyst witnessing?

A. Exploitation 
B. Reconnaissance 
C. Command and control 
D. Actions on objectives 

Answer: B

Which of the following best describes the importance of KPIs in an incident response exercise?

A. To identify the personal performance of each analyst 
B. To describe how incidents were resolved 
C. To reveal what the team needs to prioritize 
D. To expose which tools should be used 

Answer: C

Which of the following is a KPI that is used to monitor or report on the effectiveness of an incident response reporting and communication program?

A. Incident volume 
B. Mean time to detect 
C. Average time to patch 
D. Remediated incidents 

Answer: B

Which of the following is the best action to take after the conclusion of a security incident to improve incident response in the future?

A. Develop a call tree to inform impacted users 
B. Schedule a review with all teams to discuss what occurred 
C. Create an executive summary to update company leadership
 D. Review regulatory compliance with public relations for official notification 

Answer: B

An auditor is reviewing an evidence log associated with a cybercrime. The auditor notices that a gap exists between individuals who were responsible for holding onto and transferring the evidence between individuals responsible for the investigation. Which of the following best describes the evidence handling process that was not properly followed? 

A. Validating data integrity 
B. Preservation 
C. Legal hold 
D. Chain of custody 

Answer: D

An organization discovered a data breach that resulted in Pll being released to the public. During the lessons learned review, the panel identified discrepancies regarding who was responsible for external reporting, as well as the timing requirements. Which of the following actions would best address the reporting issue?

A. Creating a playbook denoting specific SLAs and containment actions per incident type 
B. Researching federal laws, regulatory compliance requirements, and organizational policies to document specific reporting SLAs 
C. Defining which security incidents require external notifications and incident reporting in addition to internal stakeholders 
D. Designating specific roles and responsibilities within the security team and stakeholders to streamline tasks 

Answer: B

Which of the following actions would an analyst most likely perform after an incident has been investigated?

A. Risk assessment 
B. Root cause analysis 
C. Incident response plan 
D. Tabletop exercise 

Answer: D

An employee is suspected of misusing a company-issued laptop. The employee has been suspended pending an investigation by human resources. Which of the following is the best step to preserve evidence?

A. Disable the user's network account and access to web resources 
B. Make a copy of the files as a backup on the server. 
C. Place a legal hold on the device and the user's network share. 
D. Make a forensic image of the device and create a SRA-I hash. 

Answer: D

Which of following would best mitigate the effects of a new ransomware attack that was not properly stopped by the company antivirus?

A. Install a firewall. 
B. Implement vulnerability management. 
C. Deploy sandboxing. 
D. Update the application blocklist. 

Answer: C