Vendor: Cisco
Exam Code: 400-007
Exam Name: Cisco Certified Design Expert (CCDE Written)
Certification: CCDE
Total Questions: 410 Q&A
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Details)
Updated on: Jun 01, 2026
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Refer to the exhibit.

An architect must design an enterprise WAN that connects the headquarters with 22 branch offices. The number of remote sites is expected to triple in the next three years. The final solution must comply with these requirements:
Only the loopback address of each of the enterprise CE X and Y routers must be advertised to the interconnecting service provider cloud network. The transport layer must carry the VPNv4 label and VPN payload over the MP- BGP control
plane.
The transport layer must not be under service provider control.
Which enterprise WAN transport virtualization technique meets the requirements?
A. EIGRP Over the Top
B. MPLS over BGP over multipoint GRE
C. DMVPN per VRF
D. point-to-point GRE per VRF
Company XYZ is designing the network for IPv6 security and they have these design requirements:
1.
A switch or router must deny access to traffic from sources with addresses that are correct, but are topologically incorrect
2.
Devices must block Neighbor Discovery Protocol resolution for destination addresses that are not found in the binding table.
Which two IPv4 security features are recommended for this company? (Choose two)
A. IPv6 DHCP Guard
B. IPv6 Source Guard
C. IPv6 Destination Guard
D. IPv6 Prefix Guard
E. IPv6 RA Guard
Company XYZ is revisiting the security design for their data center because they now have a requirement to control traffic within a subnet and implement deep packet inspection Which technology meets the updated requirements and can be incorporated into the design?
A. routed firewall
B. VLAN ACLs on the switch
C. transparent firewall
D. zone-based firewall on the Layer 3 device
The following table comprehensively analyzes the quality and value of CCDE 400-007 exam materials.