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400-007 Exam Dumps - Cisco CCDE v3.0 Questions and Answers

Question # 64

: 474

The development of a connected ecosystem of devices reflects manufacturers ' heightened focus on internal needs and issues as they work to increase product resiliency and improve customer experience In which two ways can network visibility contribute to resilient software defined networking? (Choose two.)

Options:

A.

by prioritizing critical applications

B.

by detecting and preventing network issues early

C.

by ensuring reliability by static architecture

D.

by abstracting traffic patterns from operators

E.

by reducing costs by removing low-priority traffic

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Question # 65

Company ABC wants to minimize the risk of users plugging unauthorized switches and hubs into the network. Which two features can be used on the LAN access ports to support this design requirement? (Choose two.)

Options:

A.

Loop Guard

B.

PortFast

C.

DTF

D.

Root Guard

E.

BPDU Guard

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Question # 66

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 in the design?

Options:

A.

VPLS

B.

IP SLA

C.

GRE

D.

L2TPv3

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Question # 67

With virtualization being applied in many parts of the network, every physical link is likely to carry one or more virtual links, but what is a drawback in cases like this?

Options:

A.

unneeded tunneling

B.

fate sharing

C.

serialization delay

D.

bandwidth utilization

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Question # 68

: 495

An organization has two branches connected over the Internet circuit using IPsec tunnels established on their edge routers belonging to different vendors Recently these branches were the victims of a DoS attack resulting in failure to establish the tunnels They are now looking for a better tunneling solution allowing full interoperability between vendors and allowing a standardized set of authentication methods Furthermore the solution must support detection of the peer’s state as well as having support for next-gen encryption algorithms. Which protocol meets these requirements and is known to be resistant to DoS attacks?

Options:

A.

L2TP/IPsec

B.

OpenVPN/Blowfish

C.

IPsec BFD

D.

IKEv2

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Question # 69

Company XYZ is running OSPF in their network. They have merged with another company that is running EIGRP as the routing protocol. Company XYZ now needs the two domains to talk to each other with redundancy, while maintaining a loop-free environment. The solution must scale when new networks are added into the network in the near future. Which technology can be used to meet these requirements?

Options:

A.

multipoint route-redistribution with route filtering using ACLs

B.

DUMP multipoint route-redistribution with route filtering using route tags

C.

DUMPS single point route-redistribution with route filtering using route tags

D.

DUMPS single point route-redistribution with route filtering using ACLs

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Question # 70

When a traditional network is transformed to a hierarchical network, the state information in the control plane is reduced so that changes in one area of the network do not result in changes in the routing table on devices half-way around the globe What is a potential trade off in these cases?

Options:

A.

suboptimal use of available resources

B.

vertical split of failure domains

C.

horizontal split of failure domains

D.

increased routing table size

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Question # 71

Company XYZ needs advice in redesigning their legacy Layer 2 infrastructure. Which technology should be included in the design to minimize or avoid convergence delays due to STP or FHRP and provide a loop-free topology?

Options:

A.

Use switch clustering in the access layer.

B.

Use switch clustering in the core/distribution layer.

C.

Use spanning-tree PortFast.

D.

Use BFD.

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Question # 72

Refer to the exhibit.

Traffic was equally balanced between Layer 3 links on core switches SW1 and SW2 before an introduction of the new video server in the network. This video server uses multicast to send video streams to hosts and now one of the links between core switches is overutilized. Which design solution solves this issue?

Options:

A.

Add more links between core switches.

B.

Aggregate links Layer 2 link aggregation.

C.

Apply a more granular load-balancing method on SW1.

D.

Apply a more granular load-balancing method on SW2.

E.

Filter IGMP joins on an overutilized link.

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Question # 73

A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN EVPN data center within the same location. The networks are joined to enable host migration at Layer 2. Which activity should be completed each time a legacy network is migrated?

Options:

A.

The migrated VLAN should be pruned from the Layer 2 interconnects.

B.

The migrated network should have a VXLAN VNID configured within the new network.

C.

The migrated network should be advertised to the EVPN network as a Type 2 network.

D.

The migrated network should be added to the EVPN BGP routing.

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Exam Code: 400-007
Exam Name: Cisco Certified Design Expert (CCDE v3.1)
Last Update: Jun 14, 2026
Questions: 503
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