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Free 400-007 Exam Braindumps (page: 17)

Page 17 of 73
PDF with 330 Questions

Which relationship between iBGP and the underlying physical topology is true?

  1. iBGP full mesh requires an underlying fully meshed network topology.
  2. iBGP full mesh requirement does not dictate any specific network topology.
  3. iBGP does not work on a ring network topology even with an underlying IGP.
  4. iBGP can work only on a ring network topology with a link-state protocol like OSPF or IS-IS.

Answer(s): A

Explanation:

iBGP (Interior Border Gateway Protocol) is a routing protocol that is used to exchange routing information between routers in the same autonomous system (AS). iBGP full mesh means that every router in the AS has a direct connection to every other router in the AS.

A fully meshed network topology is not required for iBGP, but it is the most common way to implement iBGP full mesh. This is because a fully meshed network topology provides the best redundancy and reliability.

If a network is not fully meshed, then iBGP can still be used, but it will be less reliable. This is because if a link fails, then the routers that are connected to the link will not be able to exchange routing information with each other.

The other options are not correct. Option B, iBGP full mesh requirement does not dictate any specific network topology, is incorrect because iBGP full mesh requires a fully meshed network topology. Option C, iBGP does not work on a ring network topology even with an underlying IGP, is incorrect because iBGP can work on a ring network topology if the ring network topology is fully meshed. Option D, iBGP can work only on a ring network topology with a link-state protocol like OSPF or IS-IS, is incorrect because iBGP can work on any network topology, as long as the network topology is fully meshed.



Which two statements describe the hierarchical LAN design model? (Choose two.)

  1. It is a well-understood architecture that provides scalability.
  2. It is the best design for modern data centers.
  3. Changes, upgrades, and new services can be introduced in a controlled and staged manner.
  4. It is the most optimal design but is highly complex.
  5. It provides a simplified design.

Answer(s): A,C

Explanation:

The hierarchical LAN design model is a well-established architecture that has been used for many years. It is a layered architecture that divides the network into three layers: the access layer, the distribution layer, and the core layer. This layering provides scalability and flexibility, as changes can be made to the network without affecting the entire network.

The hierarchical LAN design model also allows for the controlled and staged introduction of changes, upgrades, and new services. This is because the different layers of the network can be upgraded or changed independently of each other. This helps to minimize disruption to the network and allows for a more controlled and orderly deployment of changes.

The other options are not correct. Option B, it is the best design for modern data centers, is not correct because the hierarchical LAN design model is not the best design for all data centers. Option D, it is the most optimal design but is highly complex, is not correct because the hierarchical LAN design model is not the most optimal design for all networks. Option E, it provides a simplified design, is not correct because the hierarchical LAN design model is a complex architecture.





Refer to the exhibit. An engineer has been asked to redesign the traffic flow toward AS 111 coming from AS 500. Traffic destined to AS 111 network 91.7.0.0/16 should come in via AS 100, while traffic destined to all other networks in AS 111 should continue to use the existing path. Which BGP attributes are best suited to control this inbound traffic coming from BGP AS 500 into the 91.7.0.0/16 network?

  1. Use local preference on R1 for the networks that AS 500 advertises to AS 111
  2. Prepend AS path for the 91.7.0.0/16 network and set it for neighbor in AS 200
  3. Use extended community for the 91.7.0.0/16 network, not advertising it to the bi-lateral peer
  4. Set higher MED for neighbor in AS 100 to influence incoming traffic for the 91.7.0.0/16 network

Answer(s): B



An enterprise that runs numerous proprietary applications has major issues with its on-premises server estate hardware, to the point where business-critical functions are compromised. The enterprise accelerates plans to migrate services to the cloud. Which cloud service should be used if the enterprise wants to avoid hardware issues yet have control of its applications and operating system?

  1. SaaS
  2. PaaS
  3. IaaS
  4. hybrid cloud

Answer(s): C

Explanation:

IaaS (Infrastructure as a Service) is a cloud computing service that provides the basic building blocks for cloud IT—servers, storage, networking, and operating systems. This means that the enterprise will have control of its applications and operating system, while avoiding hardware issues by using the cloud provider's infrastructure.

SaaS (Software as a Service) provides applications that are hosted on the cloud and accessed by users over the internet. This means that the enterprise would not have control of its applications, and would not be able to avoid hardware issues.

PaaS (Platform as a Service) provides a platform for developing, deploying, and managing applications. This means that the enterprise would have control of its applications, but would not have control of the underlying operating system.

Hybrid cloud is a combination of public cloud and private cloud. This means that the enterprise would have some control over its applications and operating system, but would not be able to avoid hardware issues entirely.

Therefore, the best cloud service for the enterprise is IaaS, as it will allow them to avoid hardware issues while still having control of their applications and operating system.

Here are some additional reasons why IaaS is a good choice for the enterprise:

-IaaS is a scalable and flexible service, which can grow with the enterprise's needs.
-IaaS is a cost-effective service, as the enterprise only pays for the resources that they use.
-IaaS is a reliable service, as the cloud provider will take care of the underlying infrastructure.
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Page 17 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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