300-745関連日本語内容、300-745復習内容

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Cisco 300-745 Exam Syllabus Topics:

SectionWeightObjectives
Risk, Events, and Requirements30%- Security architecture requirements and frameworks
  • 1. Risk assessment and mitigation strategies
  • 2. Incident handling and response processes
  • 3. Compliance and regulatory requirements
  • 4. Security design frameworks: NIST, MITRE, SAFE
Secure Infrastructure30%- Security approaches to protect against threats
  • 1. VPN and tunneling solutions
  • 2. Endpoint and client devices security
  • 3. Next-generation firewalls, IPS/IDS, WAF deployment
  • 4. Network access security and segmentation
  • 5. Infrastructure management and control plane security
Artificial Intelligence, Automation, and DevSecOps15%- AI and automation in security
  • 1. AI/ML for threat detection and protection
  • 2. Automated security architecture: APIs, IaC, SOAR
  • 3. DevSecOps integration and secure pipelines
Applications25%- Security solutions for applications
  • 1. Firewalls, SSL decryption, DLP, endpoint security
  • 2. Cloud-native applications, microservices, containers, serverless security
  • 3. Emerging technologies: AI, ML, quantum computing impacts

>> 300-745関連日本語内容 <<

300-745復習内容、300-745全真問題集

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Cisco Designing Cisco Security Infrastructure 認定 300-745 試験問題 (Q35-Q40):

質問 # 35
The network security team of a private university is conducting a comprehensive audit to evaluate the security posture across the network infrastructure. During the review, the security team found that a trusted vendor disclosed serious vulnerabilities identified in a product that plays a crucial role in the university's CI/CD pipeline. The security team must act promptly to mitigate the potential risks posed by these vulnerabilities. Which action must the security team take first in response to the disclosure?

正解：A

解説：
The first step after a vulnerability disclosure is to validate whether the affected product exists in the organization's environment. This ensures the vulnerability is relevant before applying patches or notifying stakeholders, preventing wasted effort and focusing on actual exposure.


質問 # 36
Considering recent cybersecurity threats, a company wants to improve the process for identifying, assessing, and managing risks with a comprehensive and holistic approach. Which framework must be used to meet these requirements?

正解：A

解説：
NIST SP 800-37 provides the Risk Management Framework (RMF), which establishes a structured process for identifying, assessing, and managing cybersecurity risks. It offers a comprehensive and holistic approach, integrating security and risk management activities into the system development life cycle, making it the appropriate framework for this requirement.


質問 # 37
A software development company relies on GitHub for managing the source code and is committed to maintaining application security. The company must ensure that known software vulnerabilities are not introduced to the application. The company needs a capability within GitHub that can analyze semantic versioning and flag any software components that pose security risks. Which GitHub feature must be used?

正解：C

解説：
Dependabot is a GitHub feature that automatically scans project dependencies, analyzes semantic versioning, and flags or updates components with known vulnerabilities. This prevents insecure software libraries from being introduced into the application.


質問 # 38
A technology company recently onboarded a new customer in the medical space. The customer needs a solution to provide data integrity across remote sites. Which solution must be used to meet this requirement?

正解：A

解説：
In the context of theCisco Security Infrastructure (300-745 SDSI)objectives, ensuringdata integrityis a fundamental requirement, particularly in the healthcare sector where the accuracy of medical records at remote sites is critical for patient safety.Hashingis the primary mathematical process used to verify that data has not been altered or tampered with during transit between locations.
Hashing works by applying a cryptographic algorithm (such as SHA-256) to a data set to produce a fixed-size string of characters called a "hash" or "checksum." When data is sent from one remote site to another, the sender calculates a hash of the original data. Upon arrival, the receiving site recalculates the hash using the same algorithm. If the two hashes match exactly, the receiver is assured that the data is identical to the original and has maintained its integrity. Even a single-bit change in the original data would result in a completely different hash value.
WhileAuthentication(Option D) andPreshared Keys(Option C) are essential for verifying the identity of the sites and establishing secure tunnels (like IPsec VPNs), they do not, by themselves, provide the mathematical proof of content integrity.Data Masking(Option B) is a privacy technique used to hide sensitive information from unauthorized viewers, but it does not prevent or detect data corruption or unauthorized modifications.
Therefore, hashing is the specified technical control for achieving verifiable data integrity across distributed infrastructures.


質問 # 39
The network security team of a private university is conducting a comprehensive audit to evaluate the security posture across the network infrastructure. During the review, the security team found that a trusted vendor disclosed serious vulnerabilities identified in a product that plays a crucial role in the university's CI/CD pipeline. The security team must act promptly to mitigate the potential risks posed by these vulnerabilities.
Which action must the security team take first in response to the disclosure?

正解：C

解説：
According to theCisco Security Incident Responselifecycle and theNIST SP 800-61standards referenced in the SDSI objectives, the very first step in responding to a third-party vulnerability disclosure isIdentification and Validation. Before a team can patch, notify stakeholders, or monitor for exploits, they must perform an asset inventory check to confirm whether the specific vulnerable version of the product is actually running within their environment.
In a complex CI/CD pipeline, multiple tools and versions coexist. Jumping straight to patching (Option D) without validation can lead to unnecessary downtime or "breaking" integrated workflows if the vulnerability doesn't actually apply to the version in use. Similarly, using an IDS (Option A) is a detection/monitoring step that follows the confirmation of risk. Notifying customers (Option B) is a later phase in the incident response process, usually reserved for confirmed breaches or significant service impacts. By confirming the presence and version of the software first, the security team can accurately assess theblast radiusand prioritize remediation efforts based on the actual risk to the university's specific infrastructure. This systematic approach ensures that resources are allocated efficiently and that the security posture is managed based on verified data rather than assumptions.
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質問 # 40
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