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Cisco 400-007 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: 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
Topic 2: Network Design	30%	- Design Service Provider and Enterprise WAN architectures 1. WAN transport technologies including MPLS, Layer 3 VPN, and Metro Ethernet 2. Data center interconnect solutions 3. Software-Defined WAN design implementations - Design resilient and scalable campus architectures 1. Layer 2 and Layer 3 boundary definitions 2. High availability techniques and fast convergence mechanisms
Topic 3: Security Design	15%	- Design secure perimeter and edge boundaries 1. Enterprise cryptography architectures and VPN frameworks 2. Firewall and Intrusion Prevention System deployment modes - Design secure infrastructure controls 1. Network virtualization security and microsegmentation 2. Layer 2 and Layer 3 security defense mechanisms
Topic 4: Business Strategy Design	15%	- 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 - Evaluate project management methodologies impact 1. Waterfall framework implementation constraints 2. Agile framework and iterative lifecycle alignment
Topic 5: 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. IPv4 and IPv6 dual-stack infrastructure transitions 2. Unicast routing protocols including OSPF, EIGRP, IS-IS, and BGP 3. Multicast routing designs and protocol options

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Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q244-Q249):

NEW QUESTION # 244
An engineer is designing a DMVPN network where OSPF has been chosen as the routing protocol A spoke-to- spoke data propagation model must be set up Which two design considerations must be taken into account ?
(Choose two)

A. Configure all the sites as network type broadcast.
B. The network type should be point-to-multipoint for the hub and point-to-point for the spokes.
C. The network type on all sites should be point-to-multipoint.
D. The hub should be set as the DR by specifying the priority to 255.
E. The hub should be the DR by changing the priority of the spokes to 0.

Answer: A,E

NEW QUESTION # 245
In a redundant hub and spoke "wheel" design, all spokes are connected to the hub, and spokes are connected to other spokes as well. During failure on one spoke link, the traffic from that site can be sent to a neighboring site for it to be forwarded to the hub site. But during peak hours, a link is overloaded and traffic is re-routed to a neighbor, which subsequently becomes overloaded. This overload results in network traffic oscillation as the load varies at each spoke site. This design provides more redundancy but not more resiliency because the routing protocol must process many alternate paths to determine the lowest cost path. Which two design changes help to improve resilience in this case? (Choose two.)

A. Increase the number of redundant paths considered during the routing convergence calculation.
B. Increase routing protocol convergence timers.
C. Use two links to each remote site instead of one.
D. Increase unequal-cost parallel paths.
E. Eliminate links between every spoke.

Answer: C,D

NEW QUESTION # 246
Refer to the exhibit.

Two data center siles X and Y are connected with a direct backdoor link with these conditions *Site-specific firewalls are deployed behind the Internet edge routers R1 and R2 *Both sites are advertising the address pool 100 75 10 0/23 toward the internet Site-X finds that Internet traffic returning from user PCs comes back on the Site-Y link Which design resolves the issue?

A. Add a static route toward the Internet on Site-X.
Change the DNS policy on Site-Y to block traffic.
B. Use BGP MED to influence Site-X return traffic Change the IP address scheme of both sites.
C. Establish control plane peering between edge routers.Have Site-X advertise an IP pool with a longer prefix.
D. Change the Site-Y firewall configuration to replicate the Site-X configuration.
Advertise the low MED attribute on Site-X to the Internet.

Answer: B

NEW QUESTION # 247
Drag and drop the design use cases from the left onto the correct uRPF techniques used to prevent spoofing attacks Not all options are used.

Answer:

Explanation:

Explanation:

-

NEW QUESTION # 248
You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?

A. map IP precedence bits into the DSCP field
B. map DSCP bits into the Exp field
C. map IP CoS bits into the IP Precedence field
D. map flow-label bits into the Exp field

Answer: B

NEW QUESTION # 249
......

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