CompTIA CySA+ Practice Test (CS0-003)
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CompTIA CySA+ CS0-003 Information
CompTIA CySA+, short for CompTIA Cybersecurity Analyst, is a globally recognized certification designed for IT professionals seeking to specialize in cybersecurity analytics and threat detection. This certification is aimed at individuals who want to enhance their skills in identifying and mitigating security threats within an organization's network. CySA+ certification covers various aspects of cybersecurity, including threat analysis, vulnerability assessment, and incident response. It validates the ability to analyze data and behavior patterns to detect and respond to security incidents effectively. By earning the CompTIA CySA+ certification, professionals demonstrate their proficiency in protecting organizations against evolving cyber threats, making them valuable assets in the field of cybersecurity.
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Free CompTIA CySA+ CS0-003 Practice Test
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- Questions: 15
- Time: Unlimited
- Included Topics:Security OperationsVulnerability ManagementIncident Response and ManagementReporting and Communication
The MITRE ATT&CK framework categorizes threats based solely on the attacker's objectives.
True
False
Answer Description
The MITRE ATT&CK framework categorizes threats based on tactics, techniques, and procedures (TTPs) used by adversaries, not solely based on the attacker's objectives. Tactics describe why an adversary performs an action, techniques describe how they accomplish those goals, and procedures are specific implementations.
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What are Tactics, Techniques, and Procedures (TTPs)?
How does the MITRE ATT&CK framework improve cybersecurity?
Can you give examples of how Tactics differ from Techniques in the MITRE ATT&CK framework?
A cybersecurity analyst at XYZ corporation has been tasked with identifying exposed services and entry points on their corporate network that could be targeted by external adversaries. The organization has a web presence with multiple domains and deploys various internet-facing applications. Which technique should the analyst employ to effectively gather information about the organization's external attack surface?
Conducting an employee survey to understand the use of cloud services
Using a search engine to gather information about the company's web presence
Using a domain name enumeration tool
Reviewing internal network configurations for potential leaks
Answer Description
Using a search engine to gather information about the company's web presence is an essential step in edge discovery but does not provide a comprehensive view of the exposed services and network entry points. The correct answer, Using a domain name enumeration tool, is the correct choice because such tools gather DNS records, subdomains, and host information that reveal the structure of the organization's internet-facing assets, which is crucial for properly assessing the attack surface. Reviewing internal network configurations would not provide visibility into external-facing assets. Conducting an employee survey would not directly identify technical assets and exposed services and is, therefore, not the correct method for edge discovery in this context.
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Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is domain name enumeration and how does it work?
What are some commonly used domain name enumeration tools?
Why is it important to assess an organization's external attack surface?
Which of the following best describes edge discovery in vulnerability management?
Regularly updating software to fix known security issues
Identifying and mapping network entry and exit points to understand the full attack surface
Monitoring user activities within the internal network
Scanning external web applications for vulnerabilities
Answer Description
Edge discovery in vulnerability management refers to the process of identifying and mapping the boundaries of a network, including all entry and exit points, to ensure that all assets and potential vulnerabilities are accounted for. This helps in establishing a secure perimeter and understanding the full attack surface.
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What is meant by the term 'attack surface' in cybersecurity?
How does edge discovery contribute to overall network security?
What tools are commonly used for edge discovery in vulnerability management?
A buffer overflow vulnerability can impact the integrity of a system’s data.
True
False
Answer Description
A buffer overflow vulnerability can impact the integrity of a system’s data by allowing unauthorized modifications. When a buffer overflow occurs, excess data can overwrite adjacent memory, potentially leading to corrupted data and unanticipated changes. This can compromise the accuracy and trustworthiness of the data stored in the system.
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What is a buffer overflow vulnerability?
How does a buffer overflow affect data integrity?
What measures can be taken to prevent buffer overflow vulnerabilities?
Configurations in a Windows system's Registry that divert the default document opening path to an unknown executable is often benign.
False
True
Answer Description
Changes to the Windows Registry that redirect any default document or file paths to unknown or unexpected executables are suspicious and could indicate the presence of malware or unauthorized tampering. Attackers may use such tactics to execute malicious code when a user attempts to open a file. True configurations of this nature are seldom benign and should be thoroughly investigated.
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What is the Windows Registry and why is it important?
What are some signs that a configuration in the Registry might be malicious?
How can one safely investigate suspicious Registry changes?
An organization is preparing for a compliance audit under the Payment Card Industry Data Security Standard (PCI DSS). Which of the following measures is most effective in ensuring compliance with Requirement 6.1, which mandates that systems and applications are protected against newly discovered vulnerabilities?
Conducting regular security awareness training
Configuring web application firewalls (WAFs)
Implementing a comprehensive patch management process
Answer Description
The correct choice is comprehensive patch management. Maintaining an up-to-date patching regime ensures that all known vulnerabilities are mitigated promptly, helping the organization stay compliant with PCI DSS Requirement 6.1. Configuring web application firewalls (WAFs) and conducting regular security training are important, but they do not directly satisfy the requirement to protect systems and applications from newly discovered vulnerabilities.
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What is a patch management process?
What are the key components of PCI DSS Requirement 6.1?
Why are WAFs and security training not sufficient for Requirement 6.1?
What is the primary purpose of a disaster recovery plan?
To audit financial performance regularly
To conduct regular security awareness training sessions
To establish network security protocols
To restore critical systems and data after a disruption
Answer Description
A disaster recovery plan is primarily designed to restore critical systems and data after a disruption. This process involves specific steps to recover and bring systems back to their normal operating state, ensuring minimal impact on the organization's functions.
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What are critical systems in the context of a disaster recovery plan?
What kinds of disruptions necessitate a disaster recovery plan?
What are the key steps involved in developing a disaster recovery plan?
When establishing a vulnerability management program in an environment handling customer payment information, which of the following best practices aligns with the industry standards for securing transaction data?
Limit vulnerability assessments to external scans conducted biennially, relying primarily on other network defenses.
Implement vulnerability scans biannually, assuming no immediate threats are identified within the transaction processing systems.
Complete a comprehensive penetration test on an annual basis as the sole measure for identifying system vulnerabilities.
Conduct internal and external vulnerability scans every quarter and after each major alteration to the network infrastructure.
Answer Description
To comply with the standard governing the security of payment transaction environments, organizations are required to run both internal and external vulnerability scans on a quarterly basis and additionally after any significant change in the network. This practice helps in the timely identification and remediation of vulnerabilities to protect sensitive customer payment information. Scanning every two years is not frequent enough, and limiting activity to external scans neglects potential internal security threats. While annual penetration tests are also required, they are distinct from vulnerability scanning and do not substitute the need for more frequent scans. Relying solely on preventative measures like firewalls does not fulfill the mandated scanning requirements.
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What are internal and external vulnerability scans?
Why is it important to conduct scans every quarter?
How do vulnerability scans differ from penetration tests?
Which of the following best describes a compensating control?
A process that involves the identification and eradication of threats
A tool used for real-time monitoring and alerting of security events
A measure that mitigates risk when primary controls cannot be implemented
A policy that ensures all employees follow a strict security protocol
Answer Description
A compensating control is a security measure that acts as an alternative to the primary control to mitigate risks. It is designed to address a specific vulnerability or risk when primary controls are not feasible or sufficient. This may include additional monitoring, policy changes, or technical solutions.
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What are some examples of compensating controls?
How do compensating controls differ from primary controls?
In what situations might a compensating control be necessary?
During a security review of a web application, you discover that users remain logged in indefinitely. What is the BEST method to enhance security in this scenario?
Require multi-factor authentication for all logins.
Use HTTP cookies with secure flags.
Implement session timeouts.
Encrypt session IDs.
Answer Description
Implementing session timeouts helps ensure that sessions do not remain active indefinitely. This reduces the risk of session hijacking where an attacker can take control of an unattended session that remains active for an extended period of time. Limiting session duration is a fundamental security best practice in session management. While encrypting session IDs and using HTTP cookies with secure flags are also important, they do not directly address the issue of indefinite session duration.
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What are session timeouts?
What is session hijacking and why is it a risk?
How do secure HTTP cookies protect sessions?
Which element is most crucial when defining the 'scope' of a cybersecurity incident?
Recommending software updates
Identifying affected systems and data
Notifying law enforcement
Estimating the financial impact
Answer Description
The 'scope' of a cybersecurity incident refers to the boundaries and extent of an incident's impact. Understanding what systems, data, and operations were affected helps in formulating an effective response.
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What does it mean to define the 'scope' of a cybersecurity incident?
Why is identifying affected systems and data crucial in cybersecurity incidents?
How do organizations assess the financial impact of a cybersecurity incident after defining its scope?
A cybersecurity analyst is tasked with recommending a control to mitigate the risk of remote code execution due to a vulnerability found in a web application. Which of the following is the BEST recommendation to address this specific threat?
Implementing thorough input validation on user-supplied data
Regular patch management of the operating system and all applications
Installation of a firewall with specific rules to block suspicious traffic
Enhancing session management controls
Deployment of an Intrusion Detection System (IDS)/Intrusion Prevention System (IPS)
Answer Description
Input validation is the correct answer because it directly mitigates remote code execution vulnerabilities by ensuring that only properly formatted data is accepted by the web application. By validating all input, the application can prevent malicious data that could be used in an exploit from entering the system and being executed. While input validation by itself might not fully mitigate all remote code execution risks, it is the most effective single control among the given options. Patch management is important, but it does not prevent exploitation of zero-days or unpatched vulnerabilities. Firewalls and IDS/IPS are boundary defense mechanisms that do not directly address the specific coding issues that allow for remote code execution. Session management is important for user session security but does not prevent remote code execution.
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What is input validation and why is it important in web applications?
What are other common security vulnerabilities that input validation can help mitigate?
What are some best practices for implementing effective input validation?
What is the primary purpose of the tool Prowler when conducting vulnerability assessments in cloud environments?
To scan web applications for common vulnerabilities and exposures
To generate network topology diagrams for cloud infrastructure
To act as a multipurpose debugger for cloud services
To perform security best practices assessments and hardening for AWS environments
Answer Description
Prowler is an open-source security tool designed to perform AWS security best practices assessments, audits, incident response, continuous monitoring, hardening, and forensics readiness. It is well-known for its comprehensive checks against industry standards like the CIS benchmarks for AWS. Option B incorrectly mentions web application vulnerabilities, which is not the specific focus of Prowler, and Options A and D are not actual functionalities of Prowler.
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What are AWS security best practices?
What is the CIS benchmark for AWS?
How does Prowler perform continuous monitoring for AWS?
An analyst is reviewing the login activity of a recently terminated employee's user account. The analyst notices multiple authentication attempts from a foreign country only hours after the employee's departure. What is the BEST explanation for this anomaly?
The employee's credentials have been compromised.
The network is experiencing a distributed denial-of-service attack.
There is a hardware failure causing erroneous reporting of login locations.
The company is under a social engineering attack targeting former employees.
Answer Description
The best explanation for this anomaly is that the terminated employee's credentials have likely been compromised. Since the login attempts are occurring from a foreign country shortly after the employee's departure, it's improbable that they would be traveling there and trying to access the company's systems. The other options do not align as closely with the scenario provided, as social engineering and hardware failure would not explain login attempts from a foreign location, and a distributed denial-of-service attack does not relate directly to unauthorized access to a user account.
Ask Bash
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What are the common ways that user credentials can be compromised?
How can companies protect against the unauthorized access following an employee's termination?
What steps should be taken to investigate potentially compromised credentials?
During a routine vulnerability assessment, a security analyst discovers a high-severity vulnerability in an essential web application. Which of the following actions best ensures the availability of the application while the vulnerability is being remediated?
Implement a WAF rule to block exploit attempts.
Monitor network traffic for potential exploit attempts.
Patch the application after appropriate testing.
Take the application offline until the vulnerability is patched.
Answer Description
Ensuring availability involves maintaining system uptime while addressing vulnerabilities. Implementing a WAF rule can block exploit attempts related to the vulnerability, allowing the application to continue operating safely until the vulnerability is fully addressed. Taking the application offline would significantly impact availability. Patching is important but should be done only after appropriate testing to avoid unplanned downtime. Monitoring traffic alone doesn't prevent exploitation.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is a WAF and how does it work?
What does it mean to patch an application?
What are the potential impacts of taking an application offline?
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