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Cisco Exam 300-440 Topic 5 Question 2 Discussion

Actual exam question for Cisco's 300-440 exam
Question #: 2
Topic #: 5
[All 300-440 Questions]

A company has multiple branch offices across different geographic locations and a centralized data center. The company plans to migrate Its critical business applications to the public cloud infrastructure that is hosted in Microsoft Azure. The company requires high availability, redundancy, and low latency for its business applications. Which connectivity model meets these requirements?

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Suggested Answer: A

The connectivity model that meets the requirements of high availability, redundancy, and low latency for the company's business applications isExpressRoute with private peering using SDCI.

ExpressRoute is a service that provides a dedicated, private, and high-bandwidth connection between the customer's on-premises network and Microsoft Azure cloud network1.

Private peering is a type of ExpressRoute circuit that allows the customer to access Azure services that are hosted in a virtual network, such as virtual machines, storage, and databases2.

SDCI (Secure Data Center Interconnect) is a Cisco solution that enables secure and scalable connectivity between multiple data centers and cloud providers, using technologies such as MPLS, IPsec, and SD-WAN3.

By using ExpressRoute with private peering and SDCI, the company can achieve the following benefits:

High availability: ExpressRoute circuits are redundant and resilient, and can be configured with multiple service providers and locations for failover and load balancing1.SDCI also provides high availability by using dynamic routing protocols and encryption mechanisms to ensure optimal and secure path selection3.

Redundancy: ExpressRoute circuits can be paired together to form a redundant connection between the customer's network and Azure4.SDCI also supports redundancy by allowing multiple connections between data centers and cloud providers, using different transport technologies and service levels3.

Low latency: ExpressRoute circuits offer lower latency than public internet connections, as they bypass the congestion and variability of the internet1.SDCI also reduces latency by using MPLS and SD-WAN to optimize the performance and quality of service for the traffic between data centers and cloud providers3.


What is Azure ExpressRoute?

Azure ExpressRoute peering

Cisco Secure Data Center Interconnect

ExpressRoute circuit and routing domain

by Lenna at Mar 08, 2024, 09:12 PM

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Dorothy
2 days ago
Haha, I'm just imagining the IT team trying to explain all these connectivity options to the executives. 'So, we can either go with the ExpressRoute, the SD-WAN, or the AWS thing. Oh, and don't forget the VPN gateway!' Good luck with that conversation.
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Louis
4 days ago
I don't know, guys. AWS Direct Connect with dedicated connections could also work here. The company is moving to Azure, but that doesn't mean they can't use AWS for some connectivity needs. Plus, dedicated connections can provide the low latency they're after.
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Vincenza
5 days ago
I'm not so sure about ExpressRoute. Hybrid connectivity with SD-WAN might be a better option. It offers more flexibility and control over the network, plus it can provide redundancy and low latency as well.
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Jerry
6 days ago
Hmm, this is a tricky one. We need to consider the company's requirements for high availability, redundancy, and low latency. I'm leaning towards ExpressRoute with private peering using SDCI, as it seems to offer the most reliable and secure connectivity to the Azure cloud.
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