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Free 400-007 Exam Braindumps (page: 2)

Page 2 of 73
PDF with 330 Questions

Which two types of planning approaches are used to develop business-driven network designs and to facilitate the design decisions? (Choose two.)

  1. strategic planning approach
  2. business optimization approach
  3. tactical planning approach
  4. modular approach
  5. cost optimization approach

Answer(s): A,C

Explanation:

The two types of planning approaches that are used to develop business-driven network designs and to facilitate the design decisions are strategic planning approach and tactical planning approach.

-Strategic planning approach is a long-term planning approach that focuses on the overall goals and objectives of the organization. This approach is used to ensure that the network design is aligned with the organization's business strategy.
-Tactical planning approach is a short-term planning approach that focuses on the specific needs of the organization. This approach is used to ensure that the network design can meet the current and future needs of the organization.
The other options are not as suitable for this purpose.

-Business optimization approach is a more general approach to planning that can be used for any type of business. It is not specifically focused on network design.
-Modular approach is a way of designing networks that uses pre-defined modules. This approach can be used to speed up the design process, but it can also make it difficult to adapt the network to changing needs.
-Cost optimization approach is a way of designing networks that focuses on minimizing the cost of the network. This approach can be used to save money, but it can also lead to a network that is not as reliable or secure.


Reference:

https://community.cisco.com/legacyfs/online/ccde_9781587144615_chapter1.pdf page 18



Refer to the exhibit.


ACME Mining has four data centers in Santiago, Cape Town, Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN. They want to deploy a new mission-critical application with these requirements:

* cluster heartbeat 2 MB/s continuous (250 KB/s)
* cluster heartbeat one-way maximum latency 100 ms

These are the current ping tests results between the four data centers:



Which hosting data center pair can host the new application?

  1. Mumbai and Beijing
  2. Cape Town and Mumbai
  3. Cape Town and Beijing
  4. Santiago and Mumbai
  5. Santiago and Beijing
  6. Santiago and Cape Town

Answer(s): B



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 solution must provide a single 10G connection between locations and be able to run its own varying QoS profiles without service provider interaction based on the migration stages. All connectivity methods are at 10 Gbps. Which transport technology costs the least if the connectivity is required for just one year?

  1. DWDM over dark fiber
  2. Metro Ethernet
  3. MPLS wires only
  4. CWDM over dark fiber

Answer(s): D

Explanation:

-DWDM over dark fiber is the most expensive option because it requires the purchase of dedicated dark fiber.
-Metro Ethernet is a more cost-effective option, but it may not be available in all locations.
-MPLS wires only is the least expensive option, but it does not offer the same level of performance as the other options.
-CWDM over dark fiber is a good compromise between cost and performance. It is less expensive than DWDM over dark fiber, but it still offers a high level of performance.
-



Refer to the table.



A customer investigates connectivity options for a DCI between two production data centers. The solution must provide dual 10G connections between locations with no single points of failure for Day 1 operations. It must also include an option to scale for up to 20 resilient connections in the second year to accommodate isolated SAN over IP and isolated dedicated replication IP circuits. All connectivity methods are duplex 10 Gbps. Which transport technology costs the least over two years in this scenario?

  1. CWDM
  2. DWDM
  3. MPLS
  4. Metro Ethernet

Answer(s): B

Explanation:

The hint is the requirement 'option to scale for up to 20 resilient connections in the second year'. this effectively multiplies the estimated cost with 20 times.

DWDM will leverage multiple lambdas across 2 x fibres to provide that scale without additional cost for each connection added. effectively scaling out is amortised into the original contract


Reference:

https://www.commscope.com/blog/2019/cwdm-vs.-dwdm-decoding-the-differences-between-wave-division-multiplexing-options/



Page 2 of 73



Post your Comments and Discuss Cisco® 400-007 exam with other Community members:

RLCCIRCUIT commented on July 15, 2024
I passed the exam with 848 on 12th July. This dump covers most of the questions, I only met 4 new ones. Thanks very much. I will get other exam dumps here.
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