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Cisco 400-007 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Security Design15%- Design secure infrastructure controls
  • 1. Network virtualization security and microsegmentation
  • 2. Layer 2 and Layer 3 security defense mechanisms
- Design secure perimeter and edge boundaries
  • 1. Enterprise cryptography architectures and VPN frameworks
  • 2. Firewall and Intrusion Prevention System deployment modes
Topic 2: Network Design30%- Design resilient and scalable campus architectures
  • 1. Layer 2 and Layer 3 boundary definitions
  • 2. High availability techniques and fast convergence mechanisms
- Design Service Provider and Enterprise WAN architectures
  • 1. Data center interconnect solutions
  • 2. WAN transport technologies including MPLS, Layer 3 VPN, and Metro Ethernet
  • 3. Software-Defined WAN design implementations
Topic 3: Service Design15%- Incorporate automation and network programmability
  • 1. Infrastructure as Code tool adoption
  • 2. Data parsing structures using JSON and XML formats
- 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
Topic 4: Control, Data, Management Plane and Operational Design25%- Design data plane transport and management plane strategies
  • 1. End-to-end Quality of Service policies
  • 2. Network visibility, telemetry, and logging infrastructures
- Design control plane routing architectures
  • 1. Multicast routing designs and protocol options
  • 2. IPv4 and IPv6 dual-stack infrastructure transitions
  • 3. Unicast routing protocols including OSPF, EIGRP, IS-IS, and BGP
Topic 5: Business Strategy Design15%- Evaluate project management methodologies impact
  • 1. Agile framework and iterative lifecycle alignment
  • 2. Waterfall framework implementation constraints
- 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 (Q221-Q226):

NEW QUESTION # 221
Company XYZ wants to redesign the Layer 2 part of their network and wants to use all available uplinks for increased performance. They also want to have end host reachability supporting conversational learning.
However, due to design constraints, they cannot implement port-channel on the uplinks. Which other technique can be used to make sure the uplinks are in active/active state?

Answer: D


NEW QUESTION # 222
Refer to the exhibit. An engineer is designing the network for a multihomed customer running in AS 111. AS 111 does not have any other ASs connected to it. Which technology is more comprehensive to use in the design to make sure that the AS is not being used as a transit AS?

Answer: A

Explanation:
Using an AS path access list helps ensure that only routes originating from the customer AS (AS
111) are advertised to another ASs. By filtering routes with an empty AS path field, AS 111 can prevent being used as a transit AS by disallowing routes coming from another ASs. This is a more comprehensive approach compared to other methods in the options provided.


NEW QUESTION # 223
A company created an IPv6 adoption plan for its campus network that requires dual-stack connectivity on the network. Campus users must have IPv6 connectivity to an HR management application, which is the first IPv6-only application hosted in the company's data center. Which two security mechanisms can be used to prevent a malicious user from masquerading as the IPv6 gateway? (Choose two.)

Answer: A,E

Explanation:
IPv6 RA guard: Protects the network from rogue IPv6 routers by filtering out unauthorized Router Advertisements (RAs), preventing attackers from masquerading as a legitimate IPv6 gateway.
IPv6 snooping: Allows the network device to inspect and track IPv6 traffic, ensuring that only valid devices are communicating, and preventing rogue devices from impersonating the IPv6 gateway.


NEW QUESTION # 224
Refer to the exhibit.

As part of a redesign project, you must predict multicast behavior What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?

Answer: A

Explanation:
https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/16450-mcastguide0.html When a multicast packet arrives on an interface, the RPF process checks to ensure that this incoming interface is the outgoing interface used by unicast routing in order to reach the source of the multicast packet. This RPF check process prevents loops. Multicast routing does not forward a packet unless the source of the packet passes a RPF check. Once a packet passes this RPF check, multicast routing forwards the packet based only upon the destination address.


NEW QUESTION # 225
An enterprise campus is adopting a network virtualization design solution with these requirements It must include the ability to virtualize the data plane and control plane by using VLANs and VRFs It must maintain end-to-end logical path transport separation across the network resources available grouped at the access edge Which two primary models can this network virtualization design be categorized? (Choose two)

Answer: A,D


NEW QUESTION # 226
......

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