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400-007 Practice Exam Questions and Answers

Cisco Certified Design Expert (CCDE v3.0)

Last Update 4 days ago
Total Questions : 329

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Question # 1

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 BF

D.  

Discussion 0
Question # 2

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 in the Company XYZ network to provide single sign-on and Multi-Factor Authentication for the applications and services. Which protocol can be used by Company XYZ to provide authentication and authorization services?

Options:

A.  

OAuth2

B.  

OpenID Connect

C.  

OpenID

D.  

SAML2.0

Discussion 0
Question # 3

Which statement about hot-potato routing architecture design is true?

Options:

A.  

Hot-potato routing is the preferred architecture when connecting to content providers

B.  

Hop-potato keeps traffic under the control of the network administrator for longer

C.  

OSPF uses hot-potato routing if all ASBRs use the same value for the external metric

D.  

Hot-potato routing is prone to misconfiguration as well as poor coordination between two networks

Discussion 0
Question # 4

Refer to the exhibit.

Question # 4

As part of a redesign project, you must predict multicast behavior What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?

Options:

A.  

It is dropped due to an unsuccessful RPF check against the multicast source

B.  

It is switched give that no RPF check is performed

C.  

It is switched due to a successful RPF check against the routing table

D.  

It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.

Discussion 0
Question # 5

What best describes the difference between Automation and Orchestration?

Options:

A.  

Automation refers to an automatic process for completing a single task and Orchestration refers to assembling and coordinating a set of tasks and conditions.

B.  

Automation describes a hands-off configuration process while Orchestration refers to sets of automation tasks that require the network administrator to coordinate

C.  

Automation refers to an automatic process for completing multiple tasks with conditions and Orchestration refers to executing tasks in parallel.

D.  

Automation refers to scripting languages (Python. Ansible etc.) and Orchestration refers to commercial products that control configuration deployment

Discussion 0
Question # 6

Which two benefits can software defined networks provide to businesses? (Choose two.)

Options:

A.  

provides additional redundancy

B.  

decentralized management

C.  

reduced latency

D.  

enables innovation

E.  

reduction of OpEx/CapEx

F.  

meets high traffic demands

Discussion 0
Question # 7

The Company XYZ network is experiencing attacks against their router. Which type of Control Plane Protection must be used on the router to protect all control plane IP traffic that is destined directly for one of the router interfaces?

Options:

A.  

Control Plane Protection host subinterface

B.  

Control Plane Protection main interface

C.  

Control Plane Protection transit subinterface

D.  

Control Plane Protection CEF-exception subinterface

Discussion 0
Question # 8

Refer to the table.

Question # 8

A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The migration is estimated to take 20 months to complete but might extend an additional 10 months if issues arise. All connectivity options meet the requirements to migrate workloads. Which transport technology provides the best ROI based on cost and flexibility?

Options:

A.  

CWDM over dark fiber

B.  

MPLS

C.  

DWDM over dark fiber

D.  

Metro Ethernet

Discussion 0
Question # 9

Which protocol does an SD-Access wireless Access Point use for its fabric data plane?

Options:

A.  

GRE

B.  

MPLS

C.  

VXLAN

D.  

LISP

E.  

CAPWAP

Discussion 0
Question # 10

In a redundant hub and spoke "wheel" design, all spokes are connected to the hub, and spokes are connected to other spokes as well. During failure on one spoke link, the traffic from that site can be sent to a neighboring site for it to be forwarded to the hub site. But during peak hours, a link is overloaded and traffic is re-routed to a neighbor, which subsequently becomes overloaded. This overload results in network traffic oscillation as the load varies at each spoke site. This design provides more redundancy but not more resiliency because the routing protocol must process many alternate paths to determine the lowest cost path. Which two design

changes help to improve resilience in this case? (Choose two.)

Options:

A.  

Increase the number of redundant paths considered during the routing convergence calculation.

B.  

Eliminate links between every spoke.

C.  

Increase routing protocol convergence timers.

D.  

Increase unequal-cost parallel paths.

E.  

Use two links to each remote site instead of one.

Discussion 0
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