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Cisco 400-007 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Service Design	15%	- Design infrastructure and network virtualization 1. MPLS architecture implementations such as LDP and Segment Routing 2. Cloud integration models including hybrid and multi-cloud environments - Incorporate automation and network programmability 1. Infrastructure as Code tool adoption 2. Data parsing structures using JSON and XML formats
Topic 2: Security Design	15%	- Design secure perimeter and edge boundaries 1. Firewall and Intrusion Prevention System deployment modes 2. Enterprise cryptography architectures and VPN frameworks - Design secure infrastructure controls 1. Network virtualization security and microsegmentation 2. Layer 2 and Layer 3 security defense mechanisms
Topic 3: Network Design	30%	- Design Service Provider and Enterprise WAN architectures 1. Data center interconnect solutions 2. Software-Defined WAN design implementations 3. WAN transport technologies including MPLS, Layer 3 VPN, and Metro Ethernet - Design resilient and scalable campus architectures 1. High availability techniques and fast convergence mechanisms 2. Layer 2 and Layer 3 boundary definitions
Topic 4: Control, Data, Management Plane and Operational Design	25%	- Design control plane routing architectures 1. IPv4 and IPv6 dual-stack infrastructure transitions 2. Multicast routing designs and protocol options 3. Unicast routing protocols including OSPF, EIGRP, IS-IS, and BGP - Design data plane transport and management plane strategies 1. Network visibility, telemetry, and logging infrastructures 2. End-to-end Quality of Service policies
Topic 5: Business Strategy Design	15%	- Evaluate project management methodologies impact 1. Waterfall framework implementation constraints 2. Agile framework and iterative lifecycle alignment - Assess business goals and drivers 1. Analyze company financial metrics and drivers like CAPEX, OPEX, and ROI 2. Evaluate risk management and business continuity strategies 3. Determine regulatory and compliance constraints

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Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q203-Q208):

NEW QUESTION # 203
Company XYZ connects its sites over a private WAN. Their overlay network is running a DMVPN setup where the headquarters site is the hub. The company is planning on implementing multicast routing on the network. What should be used in the multicast routing design?

A. PIM sparse mode with RP located at each remote site
B. PIM sparse mode with RP located at the hub
C. PIM dense mode with RP located at the hub
D. PIM dense mode with RP located at each remote site

Answer: B

Explanation:
* C (PIM Sparse Mode with RP located at the hub):DMVPN networks typically leverage sparse mode multicast due to their efficiency in dynamic topologies. Locating the Rendezvous Point (RP) at the hub simplifies multicast state management, since the hub serves as the central aggregation point and ensures optimal rendezvous functionality without requiring complex RP placement across spokes.
Other options explained:
* A: Dense mode is inefficient and generates unnecessary flooding, especially in WAN environments.
* B/D: Placing RPs at remote sites introduces unnecessary complexity and operational challenges.

NEW QUESTION # 204
Refer to the exhibit.

Company XYZ must design a DMVPN tunnel between the three sites Chicago is going to act as the NHS and the company wants DMVPN to detect peer endpoint failures Which technology should be used m the design?

A. VPLS
B. GRE
C. IP SLA
D. L2TPv3

Answer: C

NEW QUESTION # 205
What is a description of a control plane action?

A. Matching the destination IP address of an IP packet to the IP routing table
B. Hosts locating routers that reside on attached links using the IPv6 Neighbor Discovery Protocol
C. Matching the destination MAC address of an Ethernet frame to the MAC address table
D. De-encapsulating and re-encapsulating a packet in a data-link frame

Answer: B

Explanation:
* D (Neighbor Discovery):Control plane actions manage routing and signaling, such as ND discovering routers in IPv6. The control plane manages state and network intelligence, while data plane performs forwarding.
Other options explained:
* A/B/C: These describe data plane forwarding operations.

NEW QUESTION # 206
Which redundancy element plays a crucial role in ensuring business continuity even in challenging situations?

A. network boot performance
B. adapting and expanding the network
C. minimizing the downtime
D. disaster recovery planning

Answer: C

NEW QUESTION # 207
A business wants to centralize services via VDI technology and to replace remote WAN desktop PCs with thin client-type machines to reduce operating costs. Which consideration supports the new business requirement?

A. VDI servers should be contained centrally within a DMZ
B. The thin client traffic should be placed in a WAN QoS priority queue
C. VDI servers should be contained within dedicated VLANs in each branch location
D. The WAN should offer low latency and be resized

Answer: D

Explanation:
VDI (Virtual Desktop Infrastructure) solutions are latency-sensitive and require:
* Low-latency WAN connectivity
* Sufficient and predictable bandwidth
* Real-time response to user input and video rendering
The primary success factor for VDI is the performance and responsiveness of the remote session, which relies heavily on network characteristics. WAN resizing may also be needed to meet increased load from centralized sessions.
QoS prioritization (Option B) helps but is not sufficient if latency is too high. Placing VDI servers in branch VLANs or DMZs conflicts with the stated goal of centralization.
This aligns with CCDE principles on performance-driven design and service centralization strategies.

NEW QUESTION # 208
......

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