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Cisco Certified Design Expert (CCDE v3.1)

Architecting Enterprise Ecosystems: Why Strategic Design Principles Defeat Static Memory Dumps

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Question # 41

In an OSPF network with routers connected together with Ethernet cabling, which topology typically takes the longest to converge?

A.

Partial mesh

B.

Full mesh

C.

Ring

D.

Squared

E.

Triangulated

Question # 42

How must the queue sizes be designed to ensure that an application functions correctly?

A.

Each individual device queuing delay in the chain must be less than or equal to the application required delay.

B.

The queuing delay on every device in the chain must be exactly the same to the application required delay.

C.

The default queue sizes are good for any deployment as it compensates the serialization delay.

D.

The sum of the queuing delay of all devices plus serialization delay in the chain must be less than or equal to the application required delay.

Question # 43

Refer to the exhibit A solution architect is tasked with designing a quick fault detection and convergence solution based on a set of requirements

•Due to the use of voice applications, users must ideally not experience traffic disruption in excess of 100 milliseconds in case of link or node failures in OSPF area 100. •The enterprise requires the network to be highly available

•Traffic must quickly switch to another path without waiting for the OSPF dead interval to kick in What can be included in the design in order to meet these requirements?

A.

Make OSPF peers use BFD and set the BFD timers to an appropriate value.

B.

Enable IP SLA tracking with next hop to OSPF peer

C.

Use fault propagation timers specified in milliseconds for the OSPF SPF algorithm.

D.

Adjust SPF delay and LSA interval timers in OSPF protocol.

Question # 44

Which mechanism enables small, unmanaged switches to plug into ports of access switches without risking switch loops?

A.

PortFast

B.

UDLD

C.

Root guard

D.

BPDU guard

Question # 45

Refer to the exhibit.

After a network audit, a network engineer must optimize the current network convergence time. The proposed solution must consider link layer and control plane failures. Which solution meets the requirements?

A.

Configure debounce timers

B.

Increase fast hello timers

C.

Implement BFD

D.

Enable LSP fast flood

Question # 46

Identity and access management between multiple users and multiple applications has become a mandatory requirement for Company XYZ to fight against ever-increasing cybersecurity threats. To achieve this, federated identity services have been deployed to provide Single Sign-On and Multi-Factor Authentication. Which protocol can be used by Company XYZ to provide authentication and authorization services?

A.

OAuth2

B.

OpenID Connect

C.

OpenID

D.

SAML2.0

Question # 47

Company XYZ was not satisfied with the reconvergence time OSPF is taking. BFD was implemented to try to reduce the reconvergence time, but the network is still experiencing delays when having to reconverge. Which technology will improve the design?

A.

OSPF fast hellos

B.

BFD echo

C.

Change the protocol to BGP

D.

Change the OSPF hello and dead intervals

Question # 48

Setting a specific goal for throughput based on per-second data rates between end hosts does not identify the requirements for specific applications When specifying throughput goals for applications, it is important to understand the throughput requirements for each application Which two factors that can constrain application layer throughput? (Choose two.)

A.

protocol parameters, such as frame size and retransmission timers

B.

sent packets or cells at networking devices

C.

the pps or cps rate of networking devices

D.

workstation and server availability

E.

end-to-end throughput rates

Question # 49

An enterprise organization currently provides WAN connectivity to their branch sites using MPLS technology, and the enterprise network team is considering rolling out SD-WAN services for all sites.

With regards to the deployment planning, drag and drop the actions from the left onto the corresponding steps on the right.

Question # 50

An architect receives a functional requirement for a NAC system from a customer security policy stating that if a corporate Wi-Fi device does not meet current AV definitions, it cannot access the network until updated. Which component should be built into the NAC design?

A.

Posture assessment with remediation VLAN

B.

Quarantine SGTs

C.

dACLs with SGTs

D.

Quarantine VLAN

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