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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Governance, Risk, and Compliance | 20% | - Business impact analysis - Security governance policies and procedures - Risk management frameworks and methodologies - Compliance and regulatory requirements |
| Topic 2: Security Engineering | 31% | - Secure coding practices and secure SDLC - Security automation and IaC (Infrastructure as Code) - Endpoint and mobile security - Identity and access management (IAM) - Application security (SAST/DAST/SCA) - Cryptography and PKI |
| Topic 3: Security Operations | 22% | - Threat hunting and intelligence - Monitoring, logging, and SIEM/SOAR operations - Vulnerability management and penetration testing concepts - Business continuity and disaster recovery - Incident response and digital forensics |
| Topic 4: Security Architecture | 27% | - Zero Trust architecture implementation - Resilient system design - Security requirements analysis - Secure network architecture design - Cloud and hybrid infrastructure security |
私たちのウェブサイトから見ると、CAS-005学習教材は3つのバージョンがあります。PDF、ソフトウェアとオンライン版です。CAS-005 PDF版は印刷できます。ソフトウェアとオンライン版はコンピュータで使用できます。コンピュータで学ぶことが難しい場合は、CAS-005学習教材の印刷資料で勉強できます。また、CAS-005学習教材の価格は合理的に設定されています。
質問 # 441
A company wants to implement hardware security key authentication for accessing sensitive information systems The goal is to prevent unauthorized users from gaining access with a stolen password Which of the following models should the company implement to best solve this issue?
正解：A
解説：
Context-based authentication enhances traditional security methods by incorporating additional layers of information about the user's current environment and behavior. This can include factors such as the user's location, the time of access, the device used, and the behavior patterns. It is particularly useful in preventing unauthorized access even if an attacker has obtained a valid password.
* Rule-based (A) focuses on predefined rules and is less flexible in adapting to dynamic threats.
* Time-based (B) authentication considers the time factor but doesn't provide comprehensive protection against stolen credentials.
* Role-based (C) is more about access control based on the user's role within the organization rather than authenticating the user based on current context.
By implementing context-based authentication, the company can ensure that even if a password is compromised, the additional contextual factors required for access (which an attacker is unlikely to possess) provide a robust defense mechanism.
References:
* CompTIA SecurityX guide on authentication models and best practices.
* NIST guidelines on authentication and identity proofing.
* Analysis of multi-factor and adaptive authentication techniques.
質問 # 442
An organization has been using self-managed encryption keys rather than the free keys managed by the cloud provider. The Chief Information Security Officer (CISO) reviews the monthly bill and realizes the self-managed keys are more costly than anticipated. Which of the following should the CISO recommend to reduce costs while maintaining a strong security posture?
正解：C
解説：
Comprehensive and Detailed Step by Step
Understanding the Scenario: The organization is using customer-managed encryption keys in the cloud, which is more expensive than using the cloud provider's free managed keys. The CISO needs to find a way to reduce costs without significantly weakening the security posture.
Analyzing the Answer Choices:
A . Utilize an on-premises HSM to locally manage keys: While on-premises HSMs offer strong security, they introduce additional costs and complexity (procurement, maintenance, etc.). This option is unlikely to reduce costs compared to cloud-based key management.
B . Adjust the configuration for cloud provider keys on data that is classified as public: This is the most practical and cost-effective approach. Data classified as public doesn't require the same level of protection as sensitive data. Using the cloud provider's free managed keys for public data can significantly reduce costs without compromising security, as the data is intended to be publicly accessible anyway.
Reference:
C . Begin using cloud-managed keys on all new resources deployed in the cloud: While this would reduce costs, it's a broad approach that doesn't consider the sensitivity of the data. Applying cloud-managed keys to sensitive data might not be acceptable from a security standpoint.
D . Extend the key rotation period to one year so that the cloud provider can use cached keys: Extending the key rotation period weakens security. Frequent key rotation is a security best practice to limit the impact of a potential key compromise.
Why B is the Correct answer:
Risk-Based Approach: Using cloud-provider-managed keys for public data is a reasonable risk-based decision. Public data, by definition, is not confidential.
Cost Optimization: This directly addresses the CISO's concern about cost, as cloud-provider-managed keys are often free or significantly cheaper.
Security Balance: It maintains a strong security posture for sensitive data by continuing to use customer-managed keys where appropriate, while optimizing costs for less sensitive data.
CASP+ Relevance: This approach demonstrates an understanding of risk management, data classification, and cost-benefit analysis in security decision-making, all of which are important topics in CASP+.
Elaboration on Data Classification:
Data Classification Policy: Organizations should have a clear data classification policy that defines different levels of data sensitivity (e.g., public, internal, confidential, restricted).
Security Controls Based on Classification: Security controls, including encryption key management, should be applied based on the data's classification level.
Cost-Benefit Analysis: Data classification helps organizations make informed decisions about where to invest in stronger security controls and where cost optimization is acceptable.
質問 # 443
A help desk technician is troubleshooting an issue with an employee's laptop that will not boot into its operating system. The employee reported the laptop had been stolen but then found it one day later. The employee has asked the technician for help recovering important data. The technician has identified the following:
- The laptop operating system was not configured with BitLocker.
- The hard drive has no hardware failures.
- Data is present and readable on the hard drive, although it appears
to be illegible.
Which of the following is the most likely reason the technician is unable to retrieve legible data from the hard drive?
正解：B
解説：
Crypto-shredding is the most likely reason the technician is unable to retrieve legible data from the hard drive. Crypto-shredding occurs when the encryption keys used to access data are deleted or destroyed, making the data unreadable. In this case, it is possible that the hard drive was encrypted (either through BitLocker or another encryption method) and the keys were deleted after the laptop was stolen, rendering the data inaccessible and illegible without the correct keys.
質問 # 444
An organization hires a security consultant to establish a SOC that includes a threat-modeling function. During initial activities, the consultant works with system engineers to identify antipatterns within the environment. Which of the following is most critical for the engineers to disclose to the consultant during this phase?
正解：E
解説：
In the context of establishing a Security Operations Center (SOC) with a threat-modeling function, it's crucial to understand how data flows within the organization's systems. Network and data flow diagrams provide a visual representation of the system's architecture, illustrating how data moves between components, which is essential for identifying potential security weaknesses and antipatterns. Antipatterns are common responses to recurring problems that are ineffective and risk- inducing. By analyzing these diagrams, the consultant can pinpoint areas where security controls may be lacking or misconfigured, thereby facilitating the development of effective threat models.
質問 # 445
A hospital provides tablets to its medical staff to enable them to more quickly access and edit patients' charts.
The hospital wants to ensure that if a tablet is Identified as lost or stolen and a remote command is issued, the risk of data loss can be mitigated within seconds. The tablets are configured as follows to meet hospital policy
* Full disk encryption is enabled
* "Always On" corporate VPN is enabled
* ef-use-backed keystore is enabled'ready.
* Wi-Fi 6 is configured with SAE.
* Location services is disabled.
*Application allow list is configured
正解：C
解説：
To mitigate the risk of data loss on a lost or stolen tablet quickly, the most effective strategy is to return the device's solid-state media to zero, which effectively erases all data on the device. Here's why:
Immediate Data Erasure: Returning the solid-state media to zero ensures that all data is wiped instantly, mitigating the risk of data loss if the device is lost or stolen.
Full Disk Encryption: Even though the tablets are already encrypted, physically erasing the data ensures that no residual data can be accessed if someone attempts to bypass encryption.
Compliance and Security: This method adheres to best practices for data security and compliance, ensuring that sensitive patient data cannot be accessed by unauthorized parties.
質問 # 446
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