CompTIA CAS-005 Prüfungsaufgaben - CAS-005 Prüfung

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CompTIA CAS-005 Exam Syllabus Topics:

SectionWeightObjectives
Security Architecture27%- Secure network architecture
  • 1. Secure communication protocols and services
  • 2. Software-defined networking and virtualization security
  • 3. Network segmentation and zoning
- Identity and access management architecture
  • 1. Privileged access management
  • 2. Federated identity and single sign-on
  • 3. Authentication and authorization frameworks
- Cloud and hybrid security architecture
  • 1. Hybrid and multi-cloud integration security
  • 2. Cloud service models and security responsibilities
  • 3. Cloud security controls and design patterns
- Security for emerging technologies
  • 1. Edge computing and 5G security
  • 2. IoT and embedded systems security
  • 3. AI and machine learning security considerations
Security Engineering31%- Secure systems and application design
  • 1. Threat modeling and attack surface analysis
  • 2. Secure development lifecycle (SDLC) integration
  • 3. Secure coding practices and vulnerability mitigation
- Cryptography and secure protocols
  • 1. Key management and certificate lifecycle
  • 2. Secure communication and data protection
  • 3. Cryptographic algorithms and implementation
- Security controls and countermeasures
  • 1. Endpoint, infrastructure, and application security controls
  • 2. Defense-in-depth strategies
  • 3. Zero trust architecture implementation
- Security testing and validation
  • 1. Security automation and orchestration
  • 2. Configuration management and hardening
  • 3. Penetration testing and vulnerability assessment
Governance, Risk, and Compliance20%- Enterprise risk management
  • 1. Risk assessment frameworks and methodologies
  • 2. Third-party risk management
  • 3. Risk mitigation strategies and controls
- Security policies, standards, and procedures
  • 1. Business continuity and disaster recovery planning
  • 2. Security governance frameworks
  • 3. Policy development and enforcement
- Legal, regulatory, and compliance requirements
  • 1. Data privacy and protection regulations
  • 2. Audit and assessment processes
  • 3. Industry standards and frameworks (NIST, ISO, GDPR, HIPAA)
Security Operations22%- Incident response and management
  • 1. Incident response frameworks and procedures
  • 2. Containment, eradication, and recovery
  • 3. Digital forensics and evidence handling
- Threat and vulnerability management
  • 1. Threat hunting methodologies
  • 2. Patch and change management
  • 3. Third-party and supply chain security monitoring
- Operational security and resilience
  • 1. Vulnerability management lifecycle
  • 2. Security operations center (SOC) design and workflows
  • 3. Business continuity and disaster recovery execution
- Security monitoring and analytics
  • 1. SIEM deployment and log management
  • 2. Anomaly detection and behavioral analytics
  • 3. Threat intelligence integration and analysis

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CompTIA SecurityX Certification Exam CAS-005 Prüfungsfragen mit Lösungen (Q174-Q179):

174. Frage
Within a SCADA a business needs access to the historian server in order together metric about the functionality of the environment. Which of the following actions should be taken to address this requirement?

Antwort: C

Begründung:
The best action to address the requirement of accessing the historian server within a SCADA system is to isolate the historian server for connections only from the SCADA environment.
Security and Isolation: Isolating the historian server ensures that only authorized devices within the SCADA environment can connect to it. This minimizes the attack surface and protects sensitive data from unauthorized access.
Access Control: By restricting access to the historian server to only SCADA devices, the organization can better control and monitor interactions, ensuring that only legitimate queries and data retrievals occur.
Best Practices for Critical Infrastructure: Following the principle of least privilege, isolating critical components like the historian server is a standard practice in securing SCADA systems, reducing the risk of cyberattacks.


175. Frage
A technician is reviewing the logs and notices a large number of files were transferred to remote sites over the course of three months. This activity then stopped. The files were transferred via TLS-protected HTTP sessions from systems that do not normally send traffic to those sites. The technician will define this threat as:

Antwort: B

Begründung:
The scenario describes a prolonged, stealthy operation where files were exfiltrated over three months via secure channels (TLS-protected HTTP) from unexpected systems, then ceased. This aligns with an Advanced Persistent Threat (APT), characterized by long-term, targeted attacks aimed at data theft or surveillance, often using sophisticated methods to remain undetected.


176. Frage
Embedded malware has been discovered in a popular PDF reader application and is currently being exploited in the wild. Because the supply chain was compromised, this malware is present in versions 10.0 through 10.3 of the software's official versions. The malware is not present in version 10.4. Since the details around this malware are still emerging, the Chief Information Security Officer has asked the senior security analyst to collaborate with the IT asset inventory manager to find instances of the installed software in order to begin response activities. The asset inventory manager has asked an analyst to provide a regular expression that will identify the affected versions. The software installation entries are formatted as follows:
Reader 10.0
Reader 10.1
Reader 10.2
Reader 10.3
Reader 10.4
Which of the following regular expression entries will accurately identify all the affected versions?

Antwort: D

Begründung:
This regex is valid and matches "Reader 10.0", "Reader 10.1", "Reader 10.2", and "Reader 10.3" while excluding "Reader 10.4".
Breakdown:
Reader: Matches the text "Reader".
[1][0]: Matches "10" as a combination of two characters.
\.: Matches the literal period.
[0-3]: Matches any single digit between 0 and 3.


177. Frage
You are tasked with integrating a new B2B client application with an existing OAuth workflow that must meet the following requirements:
. The application does not need to know the users ' credentials.
. An approval interaction between the users and theHTTP service must be orchestrated.
. The application must have limited access to users ' data.
INSTRUCTIONS
Use the drop-down menus to select the action items for the appropriate locations. All placeholders must be filled.

Antwort:

Begründung:
See the complete solution below in Explanation:
Explanation:
Select the Action Items for the Appropriate Locations:
Authorization Server:
Action Item: Grant access
The authorization server ' s role is to authenticate the user and then issue an authorization code or token that the client application can use to access resources. Granting access involves the server authenticating the resource owner and providing the necessary tokens for the client application.
Resource Server:
Action Item: Access issued tokens
The resource server is responsible for serving the resources requested by the client application. It must verify the issued tokens from the authorization server to ensure the client has the right permissions to access the requested data.
B2B Client Application:
Action Item: Authorize access to other applications
The B2B client application must handle the OAuth flow to authorize access on behalf of the user without requiring direct knowledge of the user ' s credentials. This includes obtaining authorization tokens from the authorization server and using them to request access to the resource server.
Detailed Explanation:
OAuth 2.0 is designed to provide specific authorization flows for web applications, desktopapplications, mobile phones, and living room devices. The integration involves multiple steps and components, including:
Resource Owner (User):
The user owns the data and resources that are being accessed.
Client Application (B2B Client Application):
Requests access to the resources controlled by the resource owner but does not directly handle the user ' s credentials. Instead, it uses tokens obtained through the OAuth flow.
Authorization Server:
Handles the authentication of the resource owner and issues the access tokens to the client application upon successful authentication.
Resource Server:
Hosts the resources that the client application wants to access. It verifies the access tokens issued by the authorization server before granting access to the resources.
OAuth Workflow:
The resource owner accesses the client application.
The client application redirects the resource owner to the authorization server for authentication.
The authorization server authenticates the resource owner and asks for consent to grant access to the client application.
Upon consent, the authorization server issues an authorization code or token to the client application.
The client application uses the authorization code or token to request access to the resources from the resource server.
The resource server verifies the token with the authorization server and, if valid, grants access to the requested resources.
References:
CompTIA Security+ Study Guide: Provides comprehensive information on various authentication and authorization protocols, including OAuth.
OAuth 2.0 Authorization Framework (RFC 6749): The official documentation detailing the OAuth 2.0 framework, its flows, and components.
OAuth 2.0 Simplified: A book by Aaron Parecki that provides a detailed yet easy-to-understand explanation of the OAuth 2.0 protocol.
By ensuring that each component in the OAuth workflow performs its designated role, the B2B client application can securely access the necessary resources without compromising user credentials, adhering to the principle of least privilege.


178. Frage
A security analyst wants to use lessons learned from a poor incident response to reduce dwell lime in the future The analyst is using the following data points

Which of the following would the analyst most likely recommend?

Antwort: D

Begründung:
In the context of improving incident response and reducing dwell time, the security analyst needs to focus on proactive measures that can quickly detect and alert on potential security breaches. Here's a detailed analysis of the options provided:
A). Adjusting the SIEM to alert on attempts to visit phishing sites: While this is a useful measure to prevent phishing attacks, it primarily addresses external threats and doesn't directly impact dwell time reduction, which focuses on the time a threat remains undetected within a network.
B). Allowing TRACE method traffic to enable better log correlation: The TRACE method in HTTP is used for debugging purposes, but enabling it can introduce security vulnerabilities. It's not typically recommended for enhancing security monitoring or incident response.
C). Enabling alerting on all suspicious administrator behavior: This option directly targets the potential misuse of administrator accounts, which are often high-value targets for attackers. By monitoring and alerting on suspicious activities from admin accounts, the organization can quickly identify and respond to potential breaches, thereby reducing dwell time significantly. Suspicious behavior could include unusual login times, access to sensitive data not usually accessed by the admin, or any deviation from normal behavior patterns.
This proactive monitoring is crucial for quick detection and response, aligning well with best practices in incident response.
D). Utilizing allow lists on the WAF for all users using GET methods: This measure is aimed at restricting access based on allowed lists, which can be effective in preventing unauthorized access but doesn't specifically address the need for quick detection and response to internal threats.
References:
CompTIA SecurityX Study Guide: Emphasizes the importance of monitoring and alerting on admin activities as part of a robust incident response plan.
NIST Special Publication 800-61 Revision 2,"Computer Security Incident Handling Guide": Highlights best practices for incident response, including the importance of detecting and responding to suspicious activities quickly.
"Incident Response & Computer Forensics" by Jason T. Luttgens, Matthew Pepe, and Kevin Mandia:
Discusses techniques for reducing dwell time through effective monitoring and alerting mechanisms, particularly focusing on privileged account activities.
By focusing on enabling alerting for suspicious administrator behavior, the security analyst addresses a critical area that can help reduce the time a threat goes undetected, thereby improving the overall security posture of the organization.
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179. Frage
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