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IIBAのIIBA-CCA認定試験に受かることを悩んでいたら、It-Passportsを選びましょう。It-PassportsのIIBAのIIBA-CCA試験トレーニング資料は間違いなく最高のトレーニング資料ですから、それを選ぶことはあなたにとって最高の選択です。IT専門家になりたいですか。そうだったら、It-Passportsを利用したください。
質問 # 24
Other than the Requirements Analysis document, in what project deliverable should Vendor Security Requirements be included?
正解：D
解説：
Security requirements in an RFP typically cover topics such as secure development practices, vulnerability management, patching and support timelines, encryption for data at rest and in transit, identity and access controls, audit logging, incident notification timelines, subcontractor controls, data residency and retention, penetration testing evidence, compliance attestations, and right-to-audit provisions. The RFP also enables objective scoring by requesting documented evidence such as security certifications, control descriptions, and responses to standardized security questionnaires.
A training plan and business continuity plan are operational deliverables and do not drive vendor selection criteria. A project charter sets scope and governance at a high level, but it is not the primary procurement artifact for binding vendor security obligations. Therefore, the correct answer is Request For Proposals.
質問 # 25
If a threat is expected to have a serious adverse effect, according to NIST SP 800-30 it would be rated with a severity level of:
正解：A
解説：
NIST SP 800-30 Rev. 1 defines qualitative risk severity levels using consistent impact language. In its assessment scale, "Moderate" is explicitly tied to events that can be expected to have a serious adverse effect on organizational operations, organizational assets, individuals, other organizations, or the Nation.
A "serious adverse effect" is described as outcomes such as a significant degradation in mission capability where the organization can still perform its primary functions but with significantly reduced effectiveness, significant damage to organizational assets, significant financial loss, or significant harm to individuals that does not involve loss of life or life-threatening injuries. This phrasing is used to distinguish "Moderate" from "Low" (limited adverse effect) and from "High" (severe or catastrophic adverse effect).
This classification matters in enterprise risk because it drives prioritization and control selection. A "Moderate" rating typically triggers stronger treatment actions than "Low," such as tighter access controls, enhanced monitoring, more frequent vulnerability remediation, stronger configuration management, and improved incident response readiness. It also helps leaders compare risks consistently across systems and business processes by anchoring severity to clear operational and harm-based criteria rather than subjective judgment.
質問 # 26
The hash function supports data in transit by ensuring:
正解：C
解説：
A cryptographic hash function supports data in transit primarily by providing integrity assurance. When a sender computes a hash (digest) of a message and the receiver recomputes the hash after receipt, the two digests should match if the message arrived unchanged. If the message is altered in any way while traveling across the network-whether by an attacker, a faulty intermediary device, or transmission errors-the recomputed digest will differ from the original. This difference is the key signal that the message was modified in transit, which is what option B expresses. In practical secure-transport designs, hashes are typically combined with a secret key or digital signature so an attacker cannot simply modify the message and generate a new valid digest. Examples include HMAC for message authentication and digital signatures that hash the content and then sign the hash with a private key. These mechanisms provide integrity and, when keyed or signed, also provide authentication and non-repudiation properties.
Option A is more specifically about authentication of origin, which requires a keyed construction such as HMAC or a signature scheme; a plain hash alone cannot prove who sent the message. Option C is incorrect because keys are not "converted" from public to private. Option D relates to confidentiality, which is provided by encryption, not hashing. Therefore, the best answer is B because hashing enables detection of message modification during transit.
質問 # 27
Which of the following terms represents an accidental exploitation of a vulnerability?
正解：A
解説：
In cybersecurity risk terminology, an event is an observable occurrence that can affect systems, services, or data. An event may be benign, harmful, intentional, or accidental. When a vulnerability is exploited accidentally-for example, a user unintentionally triggers a software flaw, a misconfiguration causes unintended exposure, or a system process mishandles input and causes data corruption-the occurrence is best categorized as an event. Cybersecurity documentation often distinguishes between the possibility of harm and the actual occurrence of a harmful condition. A threat is the potential for an unwanted incident, such as an actor or circumstance that could exploit a vulnerability. A threat does not require that exploitation actually happens; it describes risk potential. An agent is the entity that acts (such as a person, malware, or process) and may be malicious or non-malicious, but "agent" is not the term for the occurrence itself. A response refers to the actions taken after detection, such as containment, eradication, recovery, and lessons learned; it is part of incident handling, not the accidental exploitation.
Therefore, the term that represents the actual accidental exploitation occurrence is event, because it captures the real-world happening that may trigger alerts, investigations, and potentially incident response activities if impact is significant.
質問 # 28
NIST 800-30 defines cyber risk as a function of the likelihood of a given threat-source exercising a potential vulnerability, and:
正解：C
解説：
NIST SP 800-30 describes risk using a classic risk model: risk is a function of likelihood and impact. In this model, a threat-source may exploit a vulnerability, producing a threat event that results in adverse consequences. The likelihood component reflects how probable it is that a threat event will occur and successfully cause harm, considering factors such as threat capability and intent (or in non-adversarial cases, the frequency of hazards), the existence and severity of vulnerabilities, exposure, and the strength of current safeguards. However, likelihood alone does not define risk; a highly likely event that causes minimal harm may be less important than a less likely event that causes severe harm.
The second required component is the impact-the magnitude of harm to the organization if the adverse event occurs. Impact is commonly evaluated across mission and business outcomes, including financial loss, operational disruption, legal or regulatory consequences, reputational damage, and loss of confidentiality, integrity, or availability. This is why option D is correct: NIST's definition explicitly ties the risk expression to the resulting impact on the organization.
The other options may influence likelihood assessment or control selection, but they are not the missing definitional element. Detection probability and control assurance relate to monitoring and governance; predisposing conditions can shape likelihood. None replace the
質問 # 29
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