Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 212 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02

Question #: 212
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A company hosts its core network services, including directory services and DNS, in its on-premises data center. The data center is connected to the AWS Cloud using AWS Direct Connect (DX). Additional AWS accounts are planned that will require quick, cost-effective, and consistent access to these network services.
What should a solutions architect implement to meet these requirements with the LEAST amount of operational overhead?

A. Create a DX connection in each new account. Route the network traffic to the on-premises servers.
B. Configure VPC endpoints in the DX VPC for all required services. Route the network traffic to the on-premises servers.
C. Create a VPN connection between each new account and the DX VPC. Route the network traffic to the on-premises servers.
D. Configure AWS Transit Gateway between the accounts. Assign DX to the transit gateway and route network traffic to the on-premises servers.

Show Suggested Answer

Suggested Answer: D 🗳️

by manoj101 at Aug. 28, 2020, 4:14 a.m.

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ndchris2003

Highly Voted 3 years, 8 months ago

The correct answer is D. AWS Transit Gateway connects VPCs and on-premises networks through a central hub. This simplifies your network and puts an end to complex peering relationships. It acts as a cloud router – each new connection is only made once.

upvoted 45 times

may2021_r

3 years, 7 months ago

D is correct. AWS Transit Gateway provides a hub and spoke design for connecting VPCs and on-premises networks. You can attach all your hybrid connectivity (VPN and Direct Connect connections) to a single Transit Gateway consolidating and controlling your organization’s entire AWS routing configuration in one place. It also controls how traffic is routed among all the connected spoke networks using route tables. This hub and spoke model simplifies management and reduces operational costs because VPCs only connect to the Transit Gateway to gain access to the connected networks. By attaching a transit gateway to a Direct Connect gateway using a transit virtual interface, you can manage a single connection for multiple VPCs or VPNs that are in the same AWS Region. You can also advertise prefixes from on-premises to AWS and from AWS to on-premises. The AWS Transit Gateway and AWS Direct Connect solution simplify the management of connections between an Amazon VPC and your networks over a private connection. It can also minimize network costs, improve bandwidth throughput, and provide a more reliable network experience than Internet-based connections.

upvoted 4 times

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