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Cisco 400-007 Certification Exam is a rigorous exam that requires significant preparation. Candidates are expected to have a deep understanding of network design principles and experience in designing complex network solutions. Candidates are also expected to have a good understanding of the latest technologies and trends in the networking industry.

Cisco 400-007 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Security Design: This part of the exam measures the expertise of a Network Security Architect and covers the integration of security within network design. It includes segmentation, access control, visibility, policy enforcement, and application of the CIA triad within modular architectures. Professionals must also understand how to align security with regulatory requirements relevant to network governance.
Topic 2
  • Service Design: This domain, aimed at a Cloud Network Engineer, examines how modular network design supports diverse IP-based applications including voice, video, replication, IoT, and storage. Candidates must consider operational resilience, cloud
  • hybrid connectivity, data governance needs (sovereignty, compliance), and service placement models like SaaS, PaaS, IaaS, direct connects, and WAN integration under regulatory constraints.
Topic 3
  • Control Data, Management, Operational Design: Targeting the Network Automation Specialist, this domain covers end to end IP traffic flow across rich environments, involving the separation of data, control, and management planes. Candidates must demonstrate knowledge of centralized, decentralized, and hybrid control models, and explain how automation and orchestration, including API integration, model-driven management, and CI
  • CD evolution, support controller-based and software-defined architectures such as SD WAN and network fabric implementations.
Topic 4
  • Business Strategy and Design: This section of the exam measures skills of a Network Architect, focusing on how business strategy drives network design and optimisation. Candidates are expected to understand the impact of project methodologies such as waterfall and agile, and how considerations like business continuity, RPO, ROI, CAPEX
  • OPEX and risk
  • reward influence technical decisions in solution design.
Topic 5
  • Network Design: This section is designed for a Senior Network Designer and assesses the ability to create resilient, scalable, and secure modular networks in both traditional and software-defined environments. It emphasises the translation of technical, operational, and business constraints into robust implementation and migration strategies that accommodate application behaviour and organisational requirements.

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Valid 400-007 Exam Sample - 400-007 Test Questions Pdf

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Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q153-Q158):

NEW QUESTION # 153
Which three characteristics of the Single Tier and Dual Tier Headend Architectures for DMVPN designs are true? (Choose three)

Answer: B,C,E

Explanation:
#Explanation:
* B: In a Single Tier DMVPN design, one router acts as both the GRE endpoint and IPsec encryption device-this simplifies deployment.
* E: In Single Tier, GRE and encryption termination both occur on the same physical router.
* F: In a Dual Tier design, GRE tunnels terminate on one device (hub), and IPsec encryption is offloaded to a separate security appliance, offering better scalability and separation of concerns.
Incorrect options:
* A and C: Dual-cloud topologies can be implemented using either architecture; these statements are overly prescriptive.
* D: Dual Tier refers to functional separation, not necessarily dual routers per cloud for high availability.


NEW QUESTION # 154
Company XYZ wants to implement an IPS device to detect and block well-known attacks against their network They want a design solution where all packets that are forwarded to the network are checked against a signature database before being allowed through This check must be done with the minimum effect on performance. Which design is recommended?

Answer: C


NEW QUESTION # 155
Drag and Drop Question
A consultant needs to explain different project management methodologies to a customer. Drag and drop the characteristics from the left onto the corresponding methodologies on the right in no particular order.

Answer:

Explanation:


NEW QUESTION # 156
Refer to the exhibit.

Company XYZ's BGP topology is as shown in the diagram. The interface on the LA router connected toward the 10.1.5.0/24 network is faulty and is going up and down, which affects the entire routing domain. Which routing technique can be used in the routing policy design so that the rest of the network is not affected by the flapping issue?

Answer: D

Explanation:
The issue described is classic route flapping, where a single unstable prefix (10.1.5.0/24) causes repeated route withdrawals and advertisements, triggering churn in the BGP control plane across the entire network.
This behavior can be mitigated using the following scalable and non-disruptive design approach:
* D. Route Aggregation: Aggregating routes at the edge router (in this case, the LA router) means that multiple more specific prefixes (such as 10.1.4.0/24 through 10.1.7.0/24) are advertised as a single summarized prefix (e.g., 10.1.4.0/22). As a result, the instability of 10.1.5.0/24 will not affect upstream routers (Chicago and New York), as they will only see the aggregated route.
Key benefits aligned with CCDE v3.1 design guidance:
* Isolates flapping to the edge while maintaining reachability
* Reduces control plane churn in BGP
* Preserves scalability and simplifies the routing table in upstream routers Why other options are incorrect:
* A (Route dampening): While effective, route dampening is less favored today due to convergence delay and side effects; it's also a reactive measure versus a design-based solution.
* B and C (Filtering): Filtering the route prevents reachability to that subnet, which violates availability requirements and causes data black-holing.
Thus, aggregation is the most scalable, nondisruptive, and design-aligned choice in this context.


NEW QUESTION # 157
While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during a Topology Change Notification in a Layer 2 switched network with many VLANs?

Answer: A


NEW QUESTION # 158
......

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