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Cisco 400-007 Exam Syllabus Topics:

Section	Weight	Objectives
Control, Data, Management Plane and Operational Design	25%	- Design data plane transport and management plane strategies 1. Network visibility, telemetry, and logging infrastructures 2. End-to-end Quality of Service policies - 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
Business Strategy Design	15%	- Evaluate project management methodologies impact 1. Agile framework and iterative lifecycle alignment 2. Waterfall framework implementation constraints - Assess business goals and drivers 1. Evaluate risk management and business continuity strategies 2. Analyze company financial metrics and drivers like CAPEX, OPEX, and ROI 3. Determine regulatory and compliance constraints
Service Design	15%	- 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. Cloud integration models including hybrid and multi-cloud environments 2. MPLS architecture implementations such as LDP and Segment Routing
Security Design	15%	- Design secure infrastructure controls 1. Layer 2 and Layer 3 security defense mechanisms 2. Network virtualization security and microsegmentation - Design secure perimeter and edge boundaries 1. Firewall and Intrusion Prevention System deployment modes 2. Enterprise cryptography architectures and VPN frameworks
Network Design	30%	- Design Service Provider and Enterprise WAN architectures 1. Software-Defined WAN design implementations 2. WAN transport technologies including MPLS, Layer 3 VPN, and Metro Ethernet 3. Data center interconnect solutions - Design resilient and scalable campus architectures 1. Layer 2 and Layer 3 boundary definitions 2. High availability techniques and fast convergence mechanisms

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Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q61-Q66):

NEW QUESTION # 61
The advantages of a hybrid SDN/OSPF control plane are broadly recognized in the networking community, as it promises the best of two worlds: programmability and agility of SDN and the reliability and fault tolerance of OSPF, but there are tradeoffs. Which two challenges of a hybrid SDN control plane exist in an operational network? (Choose two.)

A. model optimization for network management
B. forwarding anomalies due to uncorrected control planes
C. distributed routing protocol for packet forwarding
D. increased forwarding information base size
E. total cost of ownership for migration to SDN

Answer: B,D

NEW QUESTION # 62
Refer to the exhibit.

An engineer is designing the traffic flow for AS 111. Traffic from AS 111 should be preferred via AS 100 for all external routes. A method must be used that only affects AS 111. Which BGP attributes are best suited to control outbound traffic?

A. As path
B. MED
C. community
D. local preference

Answer: D

NEW QUESTION # 63
In a multi-cloud environment, which two practices should be implemented to safeguard the integrity of Al-driven network decisions? (Choose two.)

A. implementing machine learning models exclusively within isolated, on-premises data centers to mitigate cloud vulnerabilities
B. employing a centralized Al control plane to oversee and supervise all machine learning models in the cloud
C. executing real-time change monitoring for all Al model modifications and setups across cloud platforms
D. employing federated learning to guarantee data privacy and integrity across multiple cloud environments
E. implementing rigorous network segmentation among cloud providers to avert cross-cloud data leaks

Answer: B,C

NEW QUESTION # 64
SDWAN networks capitalize the usage of broadband Internet links over traditional MPLS links to offer more cost benefits to enterprise customers. However, due to the insecure nature of the public Internet, it is mandatory to use encryption of traffic between any two SDWAN edge devices installed behind NAT gateways.
Which overlay method can provide optimal transport over unreliable underlay networks that are behind NAT gateways?

A. DTLS
B. TLS
C. GRE
D. IPsec

Answer: D

NEW QUESTION # 65
Compared to data plane traffic, control plane traffic is relatively small in volume, but these flows are critical to the overall functioning of the network infrastructure and to voice and video endpoint well. When designing a QoS policy for a network, which two actions for the network control service-class is recommended?
(Choose two)

A. Network control traffic may be assigned a moderately provisioned shared queue
B. A moderately provisioned guaranteed-bandwidth queue can be assigned
C. WRED must be enabled on the class to avoid traffic being dropped
D. Traffic in this class needs to carry a CS6 DSCP marking.
E. Place the traffic in the same queue as other signalling traffic.

Answer: A,D

NEW QUESTION # 66
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