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400-007 Exam Dumps - Cisco Certified Design Expert (CCDE v3.1)

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Question # 89

Software-defined networking architecture is used for cost-effective, adaptable, and easily manageable applications. In which two software-defined networks is SDN commonly used? (Choose two.)

A.

wide area network

B.

mobile network

C.

metro network

D.

application network

E.

control network

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Question # 90

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

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Question # 91

Traditionally, infrastructure is not managed using code, but instead it is managed and provisioned manually which can cause potential issues On the other side, infrastructure as code brings several advantages What is a benefit of infrastructure as code?

A.

declarative pipelines

B.

configuration drift

C.

agent monitoring

D.

repeatable deployments

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Question # 92

A network engineering team is in the process of designing a lab network for a customer demonstration. The design engineer wants to show that the resiliency of the MPLS traffic Engineering Fast Reroute solution has the same failover/failback times as a traditional SONET/SDH network (around 50MSEC). In order to address both link failure and node failure within the lab typology network, which type of the MPLS TE tunnels must be considered for this demonstration?

A.

TE backup tunnel

B.

Next-hop (NHop) tunnel

C.

FRR Backup tunnel

D.

next-next-hop (NNHop) tunnel

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Question # 93

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 What is the final migration step after hosts have physically migrated to have traffic flowing through the new network without changing any host configuration?

A.

Shut down legacy Layer 3 SVIs. clear ARP caches on all hosts being migrated and then configure the legacy VRRP address onto new VXLAN core switches

B.

Increase VRRP priorities on new infrastructure over legacy VRRP values, then shut down legacy SVIs

C.

Shut down legacy infrastructure to allow VXLAN gateways to become active

D.

Shut down legacy Layer 3 SVIs and activate new preconfigured Layer 3 SVIs on VXLAN

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Question # 94

An enterprise campus is adopting a networkvirtualization design solution with these requirements

    It must include the ability to virtualize the data plane and control plane by using VLANs and VRFs

    It mustmaintain 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)

A.

Path isolation

B.

Session isolation

C.

Group virtualization

D.

Services virtualization

E.

Edge isolation

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Question # 95

A business invests in SDN and develops its own SDN controller that, due to budget constraints, runs on a single controller. The controller actively places an exclusive lock on the configuration of the devices to ensure it is the only source of changes to the environment. What is the result if the controller fails?

A.

All device configurations are in read-only mode until the controller is restored.

B.

The control plane is unavailable until the controller is restored.

C.

If a device fails, the configuration backup is unavailable-

D.

Manual changes are only possible until the controller is restored

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Question # 96

Refer to the exhibit.

An engineer is designing the network for a multihomed customer running in 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?

A.

Configure the AS-set attribute to allow only routes from AS 111 to be propagated to the neighbor ASs.

B.

Use the local preference attribute to configure your AS as a non-transit'' AS.

C.

include an AS path access list to send routes to the neighboring ASs that only have AS 111 in the AS path field.

D.

Include a prefix list to only receive routes from neighboring ASs.

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