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

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Question # 73

Which two statements describe the usage of the IS-IS overload bit technique? (Choose two )

lf overload-bit is set on a Level 2 intermediate system, the other Level 2 intermediate systems in the topology will stop using the overloaded IS to forward Level 2 traffic However, the intermediate system can still forward Level 1 traffic

It can be set in intermediate systems (IS-IS routers) to prioritize control plane CSNP packets.

It can be used to automatically synchronize the link-state database between Level 1 intermediate systems

It can be set in intermediate systems (IS-IS routers) to avoid traffic black holes until routing protocols are fully converged after a reload operation.

It can be set in intermediate systems (IS-IS routers) to attract transit traffic from other intermediate systems

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Question # 74

An architect designs a multi-controller network architecture with these requirements:

Achieve fast failover to control traffic when controllers fail.

Yield a short distance and high resiliency in the connection between the switches and the controller.

Reduce connectivity loss and enable smart recovery to improve the SDN survivability.

Improve connectivity by adding path diversity and capacity awareness for controllers.

Which control plane component of the multi-controller must be built to meet the requirements?

control node reliability

controller stale consistency

control path reliability

controller clustering

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Question # 75

A Service Provider is designing a solution for a managed CE service to a number of local customers using a single CE platform and wants to have logical separation on the CE platform using Virtual Routing and Forwarding (VRF) based on IP address ranges or packet length. Which is the most scalable solution to provide this type of VRF Selection process on the CE edge device?

Static Routes for Route Leaking

Policy Based Routing

OSPF per VRF Instance

Multi-Protocol BGP

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Question # 76

Which design benefit of bridge assurance is true?

It supposes a spanning-tee topology change upon connecting and disconnecting a station on a port

It prevents switched traffic from traversing suboptimal paths on the network.

It allows small, unmanaged switches to be plugged into ports of access switches without the risk of switch loops.

It prevents switch loops caused by unidirectional point-to-point link condition on Rapid PVST + and MST

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Question # 77

Two routers R1 and R2 are directly connected through an Ethernet link. Both routers are running OSPF over the Ethernet link and OSPF has been registered with BFD. R1 has been set up to transmit BFD at a 50 ms interval, but R2 can receive only at a 100 ms rate due to platform limitations. What does this mean?

After the initial timer exchange. R2 sets its transmission rate to the R1 Desired Min TX interval

After the initial timer exchange. R1 sets its transmission rate to the R2 Required Min RX interval

Timers renegotiate indefinitely, so the timer exchange phase never converges

R2 sets the P-bit on all BFD control packets until R2 sends a packet with the F-bit set

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Question # 78

SDN emerged as a technology trend that attracted many industries to move from traditional networks to SDN. Which challenge is solved by SDN for cloud service providers?

need for intelligent traffic monitoring

exponential growth of resource-intensive application

complex and distributed management flow

higher operating expense and capital expenditure

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Question # 79

An international media provider is an early adopter of Docker and micro services and is using an open-source homegrown container orchestration system. A few years ago, they migrated from on-premises data centers to the cloud Now they are faced with challenges related to management of the deployed services with their current homegrown orchestration system.

Which platform is well-suited as a state-aware orchestration system?

Puppet

Kubemetes

Ansible

Terraform

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Question # 80

What is a disadvantage of the traditional three-tier architecture model when east west traffic between different pods must go through the distribution and core layers?

low bandwidth

security

C scalability

high latency

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