300-745 Prüfungsfragen, 300-745 Fragen und Antworten, Designing Cisco Security Infrastructure

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Cisco 300-745 Exam Syllabus Topics:

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

>> 300-745 Originale Fragen <<

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Cisco Designing Cisco Security Infrastructure 300-745 Prüfungsfragen mit Lösungen (Q70-Q75):

70. Frage
What is a use for AI in securing network infrastructure?

Antwort: A

Begründung:
In the architecture of modern security, Artificial Intelligence (AI) and Machine Learning (ML) are leveraged to move beyond reactive, signature-based defenses. One of the most significant uses of AI in securing network infrastructure is the detection ofzero-day attacks(often referred to in exam contexts as "day zero" attacks). A zero-day attack exploits a vulnerability that is unknown to the software vendor or the public, meaning no signature exists for traditional firewalls or antivirus software to block it.
AI identifies these threats throughbehavioral analysisandanomaly detection. By establishing a highly granular baseline of "normal" network traffic patterns-including flow direction, packet size, inter-packet arrival times, and protocol behavior-AI models can detect subtle deviations that indicate a malicious exploit.
For example,Cisco Secure Network Analytics(formerly Stealthwatch) andEncrypted Threat Analytics (ETA)use ML to identify the cryptographic "fingerprints" of malware even within encrypted traffic, without the need for decryption. This allows the security infrastructure to identify and mitigate threats at the moment they appear, rather than waiting for a vendor to release a signature. While load balancing (Option B), traffic shaping (Option C), and Quality of Service (Option D) are critical for network performance and availability, they are traditional traffic engineering functions that do not inherently provide the advanced threat detection capabilities offered by AI-driven security models. Within the Cisco SDSI objectives, AI is positioned as the primary technology for achieving proactive visibility and reducing the "Mean Time to Detect" (MTTD) for previously unseen vulnerabilities.


71. Frage
In preparation for an upcoming security audit, a metal production company decided to enhance the security of container-based services running in a Kubernetes environment. The company wants to ensure that all communications between applications and services are encrypted. The administrator plans to implement mTLS service between application and services to secure the data exchanges. Given the need to manage encryption at scale and maintain efficient communication across the cluster, which network transport technology must be employed?

Antwort: A

Begründung:
A Service Mesh provides built-in support for mutual TLS (mTLS) between microservices, ensuring encrypted communication at scale in Kubernetes environments. It also centralizes management of certificates, keys, and security policies, making it the right choice for securing data exchanges across the cluster.


72. Frage
A software development company uses multiple cloud providers to host the applications. The company is designing a scalable firewall solution that must meet the requirements:
- Consistent security policies across multiple cloud environments.
- Centralized visibility and management.
- Scalability to accommodate different cloud platforms.
Which type of firewall meets the requirements?

Antwort: A

Begründung:
A distributed firewall is designed for multi-cloud and hybrid environments. It ensures consistent security policies across multiple platforms, offers centralized visibility and management, and scales seamlessly with workloads across different cloud providers. This directly meets the requirements of the scenario, unlike traditional or host-based solutions that lack centralized scalability across multiple clouds.


73. Frage
A bank experienced challenges with compromised endpoints gaining access to the internal network. To enhance security, the bank wants to ensure that all endpoints are scanned for compliance check before being allowed to access the network. Which action achieves the level of security and control?

Antwort: C

Begründung:
Posture validation with Cisco ISE checks endpoint compliance (such as antivirus status, patches, and security configurations) before granting network access. This ensures compromised or non- compliant endpoints are denied access, directly addressing the bank's security concern.


74. Frage
After a recent security breach, a financial company is reassessing their overall security posture and strategy to better protect sensitive data and resources. The company already deployed on-premises next-generation firewalls at the network edge for each branch location. Security measures must be enhanced at the endpoint level. The goal is to implement a solution that provides additional traffic filtering directly on endpoint devices, thereby offering another layer of defense against potential threats. Which technology must be implemented to meet the requirement?

Antwort: C

Begründung:
When moving security closer to the data, the endpoint becomes the final perimeter. Ahost-based firewallis a software component that runs directly on the endpoint's operating system (Windows, macOS, or Linux).
While the company already has Next-Generation Firewalls (NGFWs) at the network edge, those devices cannot protect endpoints from threats originating within the same local network segment (East-West traffic) or when the device is used outside the corporate office.
Implementing a host-based firewall provides a critical layer ofdefense-in-depth. It allows security administrators to enforce strict inbound and outbound traffic rules based on applications and services specific to that device. For example, it can prevent a compromised laptop from scanning other devices on a public Wi- Fi network. In the Cisco ecosystem, this is often achieved through theCisco Secure Client(AnyConnect) using theNetwork Visibility Module (NVM)or integrated endpoint security suites.
While aDistributed Firewall(Option C) is used for micro-segmentation within data centers/clouds and aWeb Application Firewall (WAF)(Option B) protects servers from web-based attacks, only a host-based firewall meets the requirement for traffic filtering directly on the diverse array of endpoint devices. This approach ensures that even if the network edge is bypassed, the individual host remains hardened against lateral movement and unauthorized communication.


75. Frage
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