Cisco - Authoritative 300-745 - Best Designing Cisco Security Infrastructure Preparation Materials

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Cisco 300-745 Exam Overview:

Certification Vendor:Cisco
Exam Name:Designing Cisco Security Infrastructure (DCSI)
Exam Number:300-745
Certificate Validity Period:3 years
Available Languages:English, Japanese
Exam Price:$300 USD (may vary by region)
Related Certifications:CCIE Security
CCNP Security
Exam Format:Simulation / scenario-based questions, Drag and drop, Multiple choice, Multiple response
Exam Duration:90 minutes
Real Exam Qty:Approximately 55โ€“65
Recommended Training:Cisco Official Training: Designing Cisco Security Infrastructure
Cisco Learning Network - DCSI
Exam Registration:Cisco Certification Registration
Pearson VUE Cisco Exams
Sample Questions:Cisco 300-745 Sample Questions
Exam Way:Available via Pearson VUE test centers and online proctored exam
Pre Condition:Recommended: CCNA-level knowledge. Required for CCNP Security: Passing 350-701 SCOR core exam plus one concentration exam such as 300-745 DCSI.
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/300-745-dsci.html

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Cisco 300-745 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Artificial Intelligence, Automation, and DevSecOps: Explores AI's role in securing network infrastructure, selecting tools for automated security architectures such as SOAR, IaC, and API tooling, and integrating security into DevSecOps workflows and pipelines to minimize deployment risk.
Topic 2
  • Risk, Events, and Requirements: Covers SOC incident handling and response tools, modifying security designs to mitigate or respond to incidents, and applying frameworks like MITRE CAPEC, NIST SP 800-37, and SAFE. Includes matching regulatory and compliance requirements to business scenarios.
Topic 3
  • Applications: Focuses on selecting security solutions to protect applications and designing secure architectures for cloud-native, containerized, and serverless environments using segmentation. Also addresses security design impacts of emerging technologies like AI, ML, and quantum computing.
Topic 4
  • Secure Infrastructure: Covers selecting security approaches for endpoints, identities, email, and modern environments like hybrid work, IoT, SaaS, and multi-cloud. Includes choosing VPN
  • tunneling solutions, securing management planes, and selecting the appropriate firewall architecture based on business needs.

Cisco Designing Cisco Security Infrastructure Sample Questions (Q29-Q34):

NEW QUESTION # 29
An IT company experienced the spread of malicious content between user endpoints, which impacted business critical resources. The company wants to implement a solution to control communication between individual endpoints on the network. Which approach achieves the goal?

Answer: B

Explanation:
Cisco TrustSec enables software-defined segmentation by assigning Security Group Tags (SGTs) to endpoints and enforcing communication policies. This allows granular control of traffic between individual endpoints, preventing the spread of malicious content across the network.


NEW QUESTION # 30
Which generative AI impact is addressed by a human-in-the-loop design policy?

Answer: B


NEW QUESTION # 31
A legal services company wants to prevent remote employees from accessing personal email and social media accounts while using corporate laptops. Which security solution enforces the policy?

Answer: B

Explanation:
Cisco Umbrella provides DNS-layer security and content filtering, allowing organizations to block categories such as personal email and social media. This enforces acceptable-use policies for remote employees regardless of where they connect, ensuring corporate devices comply with security requirements.


NEW QUESTION # 32
A pharmaceutical company needs a hub-and-spoke VPN topology. The design must be capable of building either partial or full mesh overlay networks. Which VPN solution must be implemented in the environment?

Answer: D

Explanation:
In the context of theDesigning Cisco Security Infrastructure (300-745 SDSI)blueprint,Dynamic Multipoint VPN (DMVPN)is the specialized architectural solution designed for scalable hub-and-spoke topologies that require the flexibility to evolve into partial or full mesh overlays. DMVPN leverages a combination of Multipoint GRE (mGRE) tunnels, Next Hop Resolution Protocol (NHRP), and IPsec encryption to create a dynamic environment.
The primary advantage of DMVPN is its ability to establish "on-demand" tunnels between spoke sites. In a traditional hub-and-spoke model, traffic between two spokes must transit the hub, which introduces latency and increases hub resource consumption. With DMVPN, spokes can use NHRP to discover the public IP addresses of other spokes and build direct tunnels between them automatically. This allows the pharmaceutical company to maintain a simple hub-and-spoke management model while benefiting from the performance of afull meshwhen traffic patterns demand it.
WhileSSL VPNs(Option D) andL2TP(Option B) are excellent for individual remote access, they are not designed for site-to-site mesh scalability.Crypto maps(Option C) represent the legacy method of building IPsec tunnels, which requires static, manual configuration of every peer relationship-making a full mesh practically impossible to manage at scale. DMVPN fulfills the Cisco SDSI objective of designing highly available and flexible secure infrastructure by automating the complexity of large-scale tunnel management.


NEW QUESTION # 33
A financial company uses a remote access solution that directs all traffic over a secure tunnel.
The company recently received some large ISP bills from the headcounter location. According to traffic analysis during the investigation, most of the network traffic was due to employees spending a lot of time on video conferences provided by a SaaS collaboration company. What must the company modify to reduce the cost without negatively impacting security or employee experience?

Answer: D

Explanation:
Split-exclusion allows trusted SaaS traffic (such as video conferencing) to bypass the VPN tunnel while keeping all other traffic secured. This reduces bandwidth costs at the headend location without degrading security or employee experience, since traffic to the SaaS provider is still encrypted natively.


NEW QUESTION # 34
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