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400-007 Exam Dumps - Cisco CCDE v3.0 Questions and Answers

Question # 64

Hybrid cloud computing allows organizations to like advantage of public and private cloud models Which best practice should organizations follow to ensure data security in the private cloud?

Options:

A.

Use standard protocols for data transmission over the network.

B.

Encrypt data when it is at rest and in motion

C.

Communicate all data security risks to customers and end users.

D.

Use standard network protocols for data communication between unsecured network connections.

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Question # 65

Company XYZ is connecting its sites over a private WAN The company is planning on implementing multicast routing on the network. The company has a mixture of routers from different vendors Which technique can be used in the multicast routing design to minimize PIM sparse mode configurations?

Options:

A.

PIM dense mode with RP using Auto-RP to announce itself

B.

PIM sparse mode with RP using Auto-RP to announce itself

C.

PIM dense mode with RP using BSR to announce itself

D.

PIM sparse mode with RP using BSR to announce itself

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Question # 66

Refer to the exhibit.

This network is running legacy STP 802.1 d. Assuming "hello_timer" is fixed to 2 seconds, which parameters can be modified to speed up convergence times after single link/node failure?

Options:

A.

The transit_delay=5 and dpdu_delay=20 are recommended values, considering helto_timer=2 and specified

B.

Only the maximum_transmission_halt_delay and diameter parameters are configurable parameters in 802. to speed up STP convergence process C. The max_age and forward delay parameters can be adjusted to speed up STP convergence process.

C.

Only the transit_delay and bpdu_delay timers are configurable parameters in 802.1d to speed up STP convergence process.

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Question # 67

Refer to the exhibit.

A customer runs OSPF with Area 5 between its aggregation router and an internal router When a network change occurs in the backbone. Area 5 starts having connectivity issues due to the SPF algorithm recalculating an abnormal number of times in Area 5 You are tasked to redesign this network to increase resiliency on the customer network with the caveat that Router B does not support the stub area How can you accomplish this task*?

Options:

A.

Increase the bandwidth on the connection between Router A and Router B

B.

Implement LSA filtering ontheAB, allowing summary routes and preventing more specific routes into Area 5

C.

Create a virtual link to Area 0 from Router B to the ABR

D.

Turn on LSA throttling on all devices in Area 5

E.

Set Area 5 to stubby at the ABR anyway

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Question # 68

A consultant needs to evaluate project management methodologies for a new service deployment on the existing network of a customer. The customer wants to be involved in the end-to-end project progress and be provided with frequent updates. The customer also wants the ability to change the requirements if needed, as the project progresses. Which project management methodology should be used?

Options:

A.

three principles

B.

phased

C.

Agile

D.

Waterfall

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Question # 69

Refer to the exhibit.

This network is running OSPF as the routing protocol. The internal networks are being advertised in OSPF London and Rome are using the direct link to reach each other although the transfer rates are better via Barcelona Which OSPF design change allows OSPF to calculate the proper costs?

Options:

A.

Change the OSPF reference bandwidth to accommodate faster links.

B.

Filter the routes on the link between London and Rome

C.

Change the interface bandwidth on all the links.

D.

Implement OSPF summarisation to fix the issue

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Question # 70

Refer to the table.

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

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Question # 71

What are two design constraints in a standard spine and leaf architecture? (Choose two.)

Options:

A.

Spine switches can connect to each other.

B.

Each spine switch must connect to every leaf switch.

C.

Leaf switches must connect to each other.

D.

Endpoints connect only to the spine switches.

E.

Each leaf switch must connect to every spine switch.

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Question # 72

While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during a Topology Change Notification in a Layer 2 switched network with many VLANs?

Options:

A.

PVRSTP

B.

MST

C.

STP

D.

PVSTP+

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Question # 73

Which feature must be part of the network design to wait a predetermined amount of time before notifying the routing protocol of a change in the path in the network?

Options:

A.

Transmit delay

B.

Throttle timer

C.

SPF hold time

D.

Interface dampening

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Exam Code: 400-007
Exam Name: Cisco Certified Design Expert (CCDE v3.1)
Last Update: Apr 1, 2025
Questions: 381
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