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

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Question # 97

Which undesired effect of increasing the jitter compensation buffer is true?

A.

The overall transport jitter decreases and quality improves.

B.

The overall transport jitter increases and quality issues can occur.

C.

The overall transport delay increases and quality issues can occur.

D.

The overall transport delay decreases and quality improves.

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Question # 98

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?

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 # 99

An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A. providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds which are sourced at the central site and consist of 20 groups at Mbps each. Which service provider recommendation offers the most scalability?

A.

EoMPLS-based VPLS can carry multicast traffic in a scalable manner

B.

Use a mesh of GRE tunnels to carry the streams between sites

C.

Enable snooping mechanisms on the provider PE routers.

D.

Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites

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Question # 100

An enterprise requires MPLS connected branches to access cloud-based Microsoft 365 services over an SD-WAN solution. Internet access Is available only at dual regional hub sites that are connected to the MPLS network. Which connectivity method provides an optimum access method to the cloud-based services If one ISP suffers loss or latency?

A.

Cloud onRamp gateway site

B.

Cloud onRamp SWG

C.

Cloud onRamp

D.

Cloud onRamp SaaS

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Question # 101

Drag and drop the multicast protocols from the left onto the current design situation on the right.

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Question # 102

You are using iSCSI to transfer files between a 10 Gigabit Ethernet storage system and a 1 Gigabit Ethernet server The performance is only approximately 700 Mbps and output drops are occurring on the server switch port. Which action will improve performance in a cost-effective manner?

A.

Change the protocol to CIFS.

B.

Increase the queue to at least 1 GB

C.

Use a WRED random drop policy

D.

Enable the TCP Nagle algorithm on the receiver

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Question # 103

Refer to the exhibit.

Which impact of using three or more ABRs between the backbone area and area 1 is true?

A.

In a large-scale network LSA replication by all ABRs can cause serious scalability issues

B.

Multiple ABRs reduce the CPU processing on each A6R due to splitting prefix advertisement

C.

In a large-scale network multiple ABRs can create microloops.

D.

Prefixes from the non-backbone area are advertised by one ABR to the backbone

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Question # 104

Company XYZ has implemented policy-based routing in their network. Which potential problem must be kept in mind about network reconvergence and PBR?

A.

It can limit network scalability

B.

It can create microloops during reconvergence

C.

It increases convergence time.

D.

It reduces convergence time.

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