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| Section | Objectives |
|---|---|
| Topic 1: Cybersecurity Analysis Foundations | - Cybersecurity terminology and principles - Security concepts in business analysis context |
| Topic 2: Business Analysis in Cybersecurity | - Translating security needs into requirements - Stakeholder and requirements analysis for security initiatives |
| Topic 3: Cyber Risk and Controls | - Security controls and mitigation strategies - Risk identification and assessment basics |
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問題 #66
Separation of duties, as a security principle, is intended to:
答案：C
解題說明：
Separation of duties is a foundational access-control and governance principle designed to reduce the likelihood of misuse, fraud, and significant mistakes by ensuring that no single individual can complete a critical process end-to-end without independent oversight. Cybersecurity and audit frameworks describe this as splitting high-risk activities into distinct roles so that one person's actions are checked or complemented by another person's authority. This limits both intentional abuse, such as unauthorized payments or data manipulation, and unintentional errors, such as misconfigurations or accidental deletion of important records.
In practice, separation of duties is implemented by defining roles and permissions so that incompatible functions are not assigned to the same account. Common examples include separating the ability to create a vendor from the ability to approve payments, separating software development from production deployment, and separating system administration from security monitoring or audit log management. This is reinforced through role-based access control, approval workflows, privileged access management, and periodic access reviews that detect conflicting entitlements and privilege creep.
The value of separation of duties is risk reduction through accountability and control. When actions require multiple parties or independent review, it becomes harder for a single compromised account or malicious insider to cause large harm without detection. It also improves reliability by introducing checkpoints that catch mistakes earlier. Therefore, the correct purpose is to prevent fraud and error.
問題 #67
Protecting data at rest secures data that is:
答案：B
解題說明：
Data at rest refers to information that is stored rather than actively moving across networks or being actively processed. This includes data saved on laptops and mobile devices, servers, databases, file shares, removable media, backup tapes, storage arrays, and cloud storage services. Because it sits in storage, the main risks involve unauthorized access (improper permissions, stolen credentials, insider misuse), theft or loss of devices/media, and misconfiguration (publicly exposed storage buckets, overly broad shared drives). Data at rest is also at risk when systems are decommissioned or storage is reused without secure wiping.
Cybersecurity documents emphasize protecting data at rest using layered controls. Encryption at rest ensures stored files or database records remain unreadable without the proper key, reducing impact if storage is stolen or accessed improperly. Strong access control and least privilege limit who can read or modify stored data, while segmentation and secure configuration reduce exposure pathways. Proper key management (separating keys from encrypted data, rotating keys, restricting key access) is critical so encryption meaningfully reduces risk. Additional controls include data classification and handling rules, secure backups (including immutable or protected backups), monitoring and audit logging for sensitive repositories, and secure disposal practices such as cryptographic erase or verified wiping.
Options A and B describe data in transit, not at rest. Option D is incorrect because stored data is not automatically less vulnerable; it is often highly attractive to attackers, so it requires deliberate protection.
問題 #68
What is the definition of privileged account management?
答案：B
解題說明：
Privileged account management refers to the governance and operational controls used to administer accounts that have elevated permissions beyond standard user access. Privileged accounts can change system configurations, create or modify users, access sensitive datasets, disable security tools, and administer core infrastructure such as servers, databases, directories, network devices, and cloud consoles. Because misuse of privileged access can quickly lead to large-scale compromise, cybersecurity frameworks treat privileged access as a high-risk area requiring stronger safeguards than normal accounts.
The definition in option A is correct because it captures the core purpose of privileged account management: establishing and maintaining access rights and controls specifically for roles that must perform administrative or support functions. In practice, this includes ensuring privileges are granted only when justified, scoped to the minimum necessary, and reviewed regularly. It also includes controls such as separation of duties, approval workflows, time-bound elevation, credential vaulting, rotation of privileged passwords and keys, multifactor authentication, and detailed logging of privileged sessions for monitoring and audit.
Option B is too broad because privileged account management is a specialized subset of identity and access management focused on elevated access. Option C is incorrect because privilege is defined by permissions, not job title. Option D describes an authentication concept, not the full management lifecycle of privileged access.
問題 #69
Which of the following activities are part of the business analyst's role in ensuring compliance with security policies?
答案：C
解題說明：
Business analysts support cybersecurity compliance primarily by ensuring that security and privacy expectations are translated into clear, testable requirements that are built into the solution. This includes eliciting applicable organizational security policies, standards, and control objectives, then mapping them into functional and non-functional requirements such as authentication methods, role-based access, logging and audit trail needs, encryption requirements, session controls, data retention, and segregation of duties. When security policies are reflected in the solution requirements, they become part of the delivery lifecycle: they can be designed, implemented, validated in testing, and verified during acceptance. This creates traceability from policy to requirement to control implementation, which is essential for audits and for demonstrating due diligence.
Option A is typically the responsibility of governance, risk, and compliance functions or internal audit, not the BA. Option C is usually performed by security testing specialists, QA teams, or application security engineers using techniques like SAST, DAST, and penetration testing. Option D is largely an operational management and compliance enforcement function, supported by training, monitoring, and disciplinary processes. The BA's distinct contribution is ensuring policy-driven security controls are captured in requirements and embedded into the solution design and delivery artifacts.
問題 #70
There are three states in which data can exist:
答案：A
解題說明：
Data is commonly categorized into three states because the threats and protections change depending on where the data is and what is happening to it. Data at rest is stored on a device or system, such as databases, file shares, endpoints, backups, and cloud storage. The main risks are unauthorized access, theft of storage media, misconfigured permissions, and improper disposal. Controls typically include strong access control, encryption at rest with sound key management, secure configuration and hardening, segmentation, and resilient backup protections including restricted access and immutability.
Data in transit is data moving between systems, such as client-to-server traffic, service-to-service connections, API calls, and email routing. The primary risks are interception, alteration, and impersonation through man-in-the-middle techniques. Standard controls include transport encryption (such as TLS), strong authentication and certificate validation, secure network architecture, and monitoring for anomalous connections or data flows.
Data in use is actively processed in memory by applications and users, for example when a document is opened, a record is processed by an application, or data is displayed to a user. This state is challenging because data may be decrypted for processing. Controls include least privilege, strong authentication and session management, endpoint protection, application security controls, and secure development practices, with hardware-backed isolation when required.
問題 #71
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