CompTIA CS0-003 Exam Dumps

CompTIA CyberSecurity Analyst CySA+ Certification Exam

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Exam Code	CS0-003
Exam Name	CompTIA CyberSecurity Analyst CySA+ Certification Exam
Questions	486 Questions Answers With Explanation
Update Date	06, 11, 2026
Price	Was : $90 Today : $50 Was : $108 Today : $60 Was : $126 Today : $70

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Demo Questions

Question # 1

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 

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Question # 2

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 

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Question # 3

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. 

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Question # 4

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. 

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Question # 5

Based on an internal assessment, a vulnerability management team wants to proactively identify risks to the infrastructure prior to production deployments. Which of the following best supports this approach?  

A. Threat modeling 
B. Penetration testing 
C. Bug bounty 
D. SDLC training 

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Question # 6

Which of the following is the best way to begin preparation for a report titled "What We Learned" regarding a recent incident involving a cybersecurity breach? 

A. Determine the sophistication of the audience that the report is meant for 
B. Include references and sources of information on the first page 
C. Include a table of contents outlining the entire report 
D. Decide on the color scheme that will effectively communicate the metrics 

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Question # 7

An organization has implemented code into a production environment. During a routine test, a penetration tester found that some of the code had a backdoor implemented, causing a developer to make changes outside of the change management windows. Which of the following is the best way to prevent this issue?

A. SDLC training 
B. Dynamic analysis 
C. Debugging 
D. Source code review 

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Question # 8

An analyst has been asked to validate the potential risk of a new ransomware campaign that the Chief Financial Officer read about in the newspaper. The company is a manufacturer of a very small spring used in the newest fighter jet and is a critical piece of the supply chain for this aircraft. Which of the following would be the best threat intelligence source to learn about this new campaign?

A. Information sharing organization 
B. Blogs/forums 
C. Cybersecuritv incident response team 
D. Deep/dark web

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Question # 9

A security analyst has identified outgoing network traffic leaving the enterprise at odd times. The traffic appears to pivot across network segments and target domain servers. The traffic is then routed to a geographic location to which the company has no association. Which of the following best describes this type of threat?

A. Hacktivist 
B. Zombie 
C. Insider threat 
D. Nation-state actor 

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Question # 10

A network security analyst for a large company noticed unusual network activity on a critical system. Which of the following tools should the analyst use to analyze network traffic to search for malicious activity?

A. WAF 
B. Wireshark 
C. EDR 
D. Nmap 

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Question # 11

Which of the following is the best use of automation in cybersecurity? 

A. Ensure faster incident detection, analysis, and response. 
B. Eliminate configuration errors when implementing new hardware. 
C. Lower costs by reducing the number of necessary staff. 
D. Reduce the time for internal user access requests.

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Question # 12

The security analyst received the monthly vulnerability report. The following findings were included in the report • Five of the systems only required a reboot to finalize the patch application. • Two of the servers are running outdated operating systems and cannot be patched The analyst determines that the only way to ensure these servers cannot be compromised is to isolate them. Which of the following approaches will best minimize the risk of the outdated servers being compromised?

A. Compensating controls 
B. Due diligence 
C. Maintenance windows 
D. Passive discovery 

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Question # 13

A security analyst is performing vulnerability scans on the network. The analyst installs a scanner appliance, configures the subnets to scan, and begins the scan of the network. Which of the following would be missing from a scan performed with this configuration?

A. Operating system version 
B. Registry key values 
C. Open ports 
D. IP address 

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Question # 14

When undertaking a cloud migration of multiple SaaS application, an organizations system administrator struggled … identity and access management to cloud-based assets. Which of the following service models would have reduced the complexity of this project? 

A. CASB 
B. SASE 
C. ZTNA 
D. SWG 

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Question # 15

A security analyst recently used Arachni to perform a vulnerability assessment of a newly developed web application. The analyst is concerned about the following output: [+] XSS: In form input 'txtSearch' with action https://localhost/search.aspx [-] XSS: Analyzing response #1... [-] XSS: Analyzing response #2... [-] XSS: Analyzing response #3... [+] XSS: Response is tainted. Looking for proof of the vulnerability. Which of the following is the most likely reason for this vulnerability?

A. The developer set input validation protection on the specific field of search.aspx.
B. The developer did not set proper cross-site scripting protections in the header. 
C. The developer did not implement default protections in the web application build. 
D. The developer did not set proper cross-site request forgery protections. 

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Question # 16

A security analyst provides the management team with an after-action report for a security incident. Which of the following is the management team most likely to review in order to correct validated issues with the incident response processes?

A. Tabletop exercise 
B. Lessons learned 
C. Root cause analysis 
D. Forensic analysis

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Question # 17

A security analyst is writing a shell script to identify IP addresses from the same country. Which of the following functions would help the analyst achieve the objective?

A. function w() { info=$(ping -c 1 $1 | awk -F “/” ‘END{print $1}’) && echo “$1 | $info” } 
B. function x() { info=$(geoiplookup $1) && echo “$1 | $info” } 
C. function y() { info=$(dig -x $1 | grep PTR | tail -n 1 ) && echo “$1 | $info” } 
D. function z() { info=$(traceroute -m 40 $1 | awk ‘END{print $1}’) && echo “$1 | $info” } 

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Question # 18

A SOC team lead occasionally collects some DNS information for investigations. The team lead assigns this task to a new junior analyst. Which of the following is the best way to relay the process information to the junior analyst?

A. Ask another team member to demonstrate their process. 
B. Email a link to a website that shows someone demonstrating a similar process. 
C. Let the junior analyst research and develop a process. 
D. Write a step-by-step document on the team wiki outlining the process.

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Question # 19

Which of the following responsibilities does the legal team have during an incident management event? (Select two).

A. Coordinate additional or temporary staffing for recovery efforts. 
B. Review and approve new contracts acquired as a result of an event. 
C. Advise the Incident response team on matters related to regulatory reporting. 
D. Ensure all system security devices and procedures are in place. 
E. Conduct computer and network damage assessments for insurance. 
F. Verify that all security personnel have the appropriate clearances. 

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Question # 20

A high volume of failed RDP authentication attempts was logged on a critical server within a one-hour period. All of the attempts originated from the same remote IP address and made use of a single valid domain user account. Which of the following would be the most effective mitigating control to reduce the rate of success of this brute-force attack?

A. Enabling a user account lockout after a limited number of failed attempts 
B. Installing a third-party remote access tool and disabling RDP on all devices 
C. Implementing a firewall block for the remote system's IP address 
D. Increasing the verbosity of log-on event auditing on all devices 

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Question # 21

Several critical bugs were identified during a vulnerability scan. The SLA risk requirement is that all critical vulnerabilities should be patched within 24 hours. After sending a notification to the asset owners, the patch cannot be deployed due to planned, routine system upgrades Which of the following is the best method to remediate the bugs?

A. Reschedule the upgrade and deploy the patch
 B. Request an exception to exclude the patch from installation
C. Update the risk register and request a change to the SLA 
D. Notify the incident response team and rerun the vulnerability scan 

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Question # 22

Numerous emails were sent to a company's customer distribution list. The customers reported that the emails contained a suspicious link. The company's SOC determined the links were malicious. Which of the following is the best way to decrease these emails? 

A. DMARC 
B. DKIM 
C. SPF 
D. SMTP 

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Question # 23

Which of the following is a useful tool for mapping, tracking, and mitigating identified threats and vulnerabilities with the likelihood and impact of occurrence?

A. Risk register 
B. Vulnerability assessment 
C. Penetration test 
D. Compliance report 

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Question # 24

Which of the following entities must receive reports in a timely fashion according to data breach notification laws related to personally identifiable information? 

A. Service providers and business associates 
B. Law enforcement and the media 
C. Computer emergency response teams and industry associations 
D. Regulators and affected customers

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Question # 25

Which of the following explains the importance of a timeline when providing an incident response report?

A. The timeline contains a real-time record of an incident and provides information that helps to simplify a postmortem analysis. 
B. An incident timeline provides the necessary information to understand the actions taken to mitigate the threat or risk. 
C. The timeline provides all the information, in the form of a timetable, of the whole incident response process including actions taken. 
D. An incident timeline presents the list of commands executed by an attacker when the system was compromised, in the form of a timetable. 

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