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49. Frage
Which of the following challenges to embedded system security can be addressed through ongoing, remote maintenance?
Antwort: D
Begründung:
Ongoing, remote maintenance is one of the most effective ways to improve the security posture of embedded systems over time because it enables timely remediation of newly discovered weaknesses. Embedded devices frequently run firmware that includes operating logic, network stacks, and third-party libraries. As vulnerabilities are discovered in these components, organizations must be able to deploy fixes quickly to reduce exposure. Remote maintenance supports this by enabling over-the-air firmware and software updates, configuration changes, certificate and key rotation, and the rollout of compensating controls such as updated security policies or hardened settings.
Option B is correct because remote maintenance directly addresses the challenge of deploying updated firmware as issues are identified. Cybersecurity guidance for embedded and IoT environments emphasizes secure update mechanisms: authenticated update packages, integrity verification (such as digital signatures), secure distribution channels, rollback protection, staged deployment, and audit logging of update actions. These practices reduce the risk of attackers installing malicious firmware and help ensure devices remain supported throughout their operational life.
The other options are not primarily solved by remote maintenance. Limited CPU and memory are inherent design constraints that may require hardware redesign. Battery and component limitations are also physical constraints. Physical security attacks exploit device access and hardware weaknesses, which require tamper resistance, secure boot, and physical protections rather than remote maintenance alone.
50. Frage
Analyst B has discovered multiple attempts from unauthorized users to access confidential data. This is most likely?
Antwort: C
Begründung:
Multiple attempts by unauthorized users to access confidential data most closely aligns with activity from a hacker, meaning an unauthorized actor attempting to gain access to systems or information. Cybersecurity operations commonly observe this pattern as repeated login failures, password-spraying, credential-stuffing, brute-force attempts, repeated probing of restricted endpoints, or abnormal access requests against protected repositories. While "user" is too generic and could include authorized individuals, the question explicitly states "unauthorized users," pointing to malicious or illegitimate actors. "Admin" and "IT Support" are roles typically associated with legitimate privileged access and operational troubleshooting; repeated unauthorized access attempts from those roles would be atypical and would still represent compromise or misuse rather than normal operations. Cybersecurity documentation often classifies these attempts as indicators of malicious intent and potential precursor events to a breach. Controls recommended to counter such activity include strong authentication (multi-factor authentication), account lockout and throttling policies, anomaly detection, IP reputation filtering, conditional access, least privilege, and monitoring of authentication logs for patterns across accounts and geographies. The key distinction is that repeated unauthorized attempts represent hostile behavior by an external or rogue actor, which is best described as a hacker in the provided options.
51. Frage
What is an external audit?
Antwort: D
Begründung:
An external audit is an independent evaluation performed by a party outside the organization to determine whether security-related activities, controls, and evidence meet defined requirements. Those requirements are typically drawn from laws and regulations, contractual obligations, and recognized standards or control frameworks. The defining characteristics are independence and attestation: the auditor is not part of the operational team being assessed and provides an objective conclusion about compliance or control effectiveness.
Unlike a vulnerability-focused review (often called a security assessment or technical audit) that primarily seeks weaknesses to remediate, an external audit emphasizes whether controls are designed appropriately, implemented consistently, and operating effectively over time. External auditors usually test governance processes, risk management practices, policies, access control procedures, change management, logging and monitoring, incident response readiness, and evidence of periodic reviews. They also validate documentation and sampling records to confirm that what is written is actually performed.
Option B describes an internal assurance activity, such as self-assessment or internal audit preparation, where the security team checks its own implementation. Option C is closer to a financial or procurement review and is not the typical definition of an external security audit. Therefore, the best answer is the one that clearly captures an independent party reviewing security activities to ensure compliance with established criteria
52. Frage
What is an embedded system?
Antwort: C
Begründung:
An embedded system is a specialized computing system designed to perform a dedicated function as part of a larger device or physical system. Unlike general-purpose computers, embedded systems are built to support a specific mission such as controlling sensors, actuators, communications, or device logic in products like routers, printers, medical devices, vehicles, industrial controllers, and smart appliances. Cybersecurity documentation commonly highlights that embedded systems tend to operate with constrained resources, which may include limited CPU power, memory, storage, and user interface capabilities. These constraints affect both design and security: patching may be harder, logging may be minimal, and security features must be carefully engineered to fit the platform's limitations.
Option C best matches this characterization by describing a small form factor and limited processing power, which are typical attributes of many embedded devices. While not every embedded system is "small," the key idea is that it is purpose-built, resource-constrained, and tightly integrated into a larger product.
The other options describe different concepts. A secure underground facility relates to physical site security, not embedded computing. Being hard to remove is about physical installation or tamper resistance, which can apply to many systems but is not what defines "embedded." Storing cryptographic keys in a tamper-resistant external device describes a hardware security module or secure element use case, not the general definition of an embedded system.
53. Frage
Which of the following activities are part of the business analyst's role in ensuring compliance with security policies?
Antwort: B
Begründung:
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.
54. Frage
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