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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 686 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03
Question #: 686
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company is creating an application. The company stores data from tests of the application in multiple on-premises locations.

The company needs to connect the on-premises locations to VPCs in an AWS Region in the AWS Cloud. The number of accounts and VPCs will increase during the next year. The network architecture must simplify the administration of new connections and must provide the ability to scale.

Which solution will meet these requirements with the LEAST administrative overhead?

  • A. Create a peering connection between the VPCs. Create a VPN connection between the VPCs and the on-premises locations.
  • B. Launch an Amazon EC2 instance. On the instance, include VPN software that uses a VPN connection to connect all VPCs and on-premises locations.
  • C. Create a transit gateway. Create VPC attachments for the VPC connections. Create VPN attachments for the on-premises connections.
  • D. Create an AWS Direct Connect connection between the on-premises locations and a central VPC. Connect the central VPC to other VPCs by using peering connections.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by Andy_09 at Feb. 5, 2024, 3:23 p.m.
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1Alpha1
Highly Voted 1 year, 1 month ago
Selected Answer: C
multiple on-premises locations + increasing number of accounts and VPCs --> connections using *transit gateway*
upvoted 5 times
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Andy_09
Highly Voted 1 year, 1 month ago
Think C would be the correct answer here.
upvoted 5 times
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Tendu
Most Recent 1 month, 1 week ago
Selected Answer: C
Transit Gateway is a way to go in this situation.
upvoted 1 times
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LeonSauveterre
3 months, 2 weeks ago
Selected Answer: C
A - OK but for every new VPC or account, you need to manually create new peering connections and VPNs. Too much administrative overhead! B - Launching EC2s are never an easy job. You not only need to do everything manually mentioned in A, but now you also have to manage the EC2 instance and VPN software. Plus, if the EC2 instance goes down, all connectivity is lost, which is called "single-point of failure". C - Everything seems cool, it's just uhm lightly higher initial setup cost, but it saves time and money in the long run. D - Direct Connect provides fast & reliable connections, but just like A & B, as the number of VPCs grows, you'll go crazy due to all those unmanageable nodes.
upvoted 1 times
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MatAlves
6 months, 2 weeks ago
Selected Answer: C
Anytime I see "the number of VPCs will increase", I immediately look for "transit gateway" as the least administrative overhead.
upvoted 2 times
MatAlves
6 months, 2 weeks ago
"AWS Transit Gateway provides a hub and spoke design for connecting VPCs and on-premises networks as a fully managed service without requiring you to provision third-party virtual appliances. No VPN overlay is required, and AWS manages high availability and scalability." https://docs.aws.amazon.com/whitepapers/latest/building-scalable-secure-multi-vpc-network-infrastructure/transit-gateway.html#:~:text=AWS%20Transit%20Gateway%20provides%20a,manages%20high%20availability%20and%20scalability.
upvoted 2 times
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MatAlves
6 months, 2 weeks ago
Transit Gateway enables customers to connect thousands of VPCs. You can attach all your hybrid connectivity (VPN and Direct Connect connections) to a single gateway, consolidating and controlling your organization's entire AWS routing configuration in one place (refer to the following figure)
upvoted 2 times
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ogerber
1 year, 1 month ago
Selected Answer: C
high number of accounts and VPC to conect to on prem _> exactly the transit gateway use case
upvoted 3 times
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KZ06
1 year, 1 month ago
Hi, Seems like after question 684, the discussion are quite less and seems recent comments. Are these new sets of questions updated? Anyone having any idea around this?
upvoted 2 times
MatAlves
6 months, 2 weeks ago
Anytime I see "the number of VPCs will increase", I immediately look for "transit gateway" as the least administrative overhead.
upvoted 2 times
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Cali182
1 year, 1 month ago
Selected Answer: C
vote for C
upvoted 3 times
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EZforeverman
1 year, 1 month ago
I think its C. LEAST administrative overhead. D can work but AWS direct connection and VPC peering configure require too much administrative overhead
upvoted 3 times
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