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

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Question # 81

A business requirement stating that failure of WAN access for dual circuits into an MPLS provider for a Data Centre cannot happen due to related service credits that would need to be paid has led to diversely routed circuits to different points of presence on the providers network? What should a network designer also consider as part of the requirement?

Provision of an additional MPLS provider

Out of band access to the MPLS routers

Ensuring all related remote branches are dual homed to the MPLS network

Dual PSUs & Supervisors on each MPLS router

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Question # 82

Which service abstracts away the management of the operating system, middleware, and runtime?

laaS

PaaS

SaaS

BMaaS

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Question # 83

Company XYZ is redesigning their QoS policy. Some of the applications used by the company are real-time applications. The QoS design must give these applications preference in terms of transmission. Which QoS strategy can be used to fulfill the requirement?

weighted fair queuing

weighted random early detection

low-latency queuing

first-in first-out

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Question # 84

What are two key design principles when using a hierarchical core-distribution-access network model? (Choose two )

A hierarchical network design model aids fault isolation

The core layer is designed first, followed by the distribution layer and then the access layer

The core layer provides server access in a small campus.

A hierarchical network design facilitates changes

The core layer controls access to resources for security

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Question # 85

Enterprise XYZ wants to implement fast convergence on their network and optimize timers for OSPF However they also want to prevent excess flooding of LSAs if there is a constantly flapping link on the network Which timers can help prevent excess flooding of LSAs for OSPF?

OSPF propagation timers

OSPF throttling timers

OSPF delay timers

OSPF flooding timers

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Question # 86

Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation

ability to expand bandwidth over existing optical Infrastructure

inherent topology flexibility with built-in service protection

inherent topology flexibility with intelligent chromatic dispersion

inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol