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A company is configuring connectivity to a multi-account AWS environment to support application workloads that serve users in a single geographic region. The workloads depend on a highly available, on-premises legacy system deployed across two locations. It is critical for the AWS workloads to maintain connectivity to the legacy system, and a minimum of 5 Gbps of bandwidth is required. All application workloads within AWS must have connectivity with one another.
Which solution will meet these requirements?

  • A. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from a DX partner for each on-premises location. Create private virtual interfaces on each connection for each AWS account VPC. Associate the private virtual interface with a virtual private gateway attached to each VPC.
  • B. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from two DX partners for each on-premises location. Create and attach a virtual private gateway for each AWS account VPC. Create a DX gateway in a central network account and associate it with the virtual private gateways. Create a public virtual interface on each DX connection and associate the interface with the DX gateway.
  • C. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from two DX partners for each on-premises location. Create a transit gateway and a DX gateway in a central network account. Create a transit virtual interface for each DX interface and associate them with the DX gateway. Create a gateway association between the DX gateway and the transit gateway.
  • D. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from a DX partner for each on-premises location. Create and attach a virtual private gateway for each AWS account VPC. Create a transit gateway in a central network account and associate it with the virtual private gateways. Create a transit virtual interface on each DX connection and attach the interface to the transit gateway.
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Suggested Answer: C 🗳️

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aws_master
Highly Voted 3 years, 1 month ago
A - no, there is no connection between VPCs. B - no, bcz DX gateway doesn't support routing from one VPN to another ( https://docs.aws.amazon.com/directconnect/latest/UserGuide/direct-connect-gateways-intro.html ) C - right answer. https://docs.aws.amazon.com/whitepapers/latest/aws-vpc-connectivity-options/aws-direct-connect-aws-transit-gateway.html D - no, you can not connect Direct Connect to the Transit gateway without Direct Connect gateway in the middle.
upvoted 29 times
Tony_W
3 years, 1 month ago
One more thing I think I see wrong with B is at the end of the answer. It says to create a PUBLIC Virtual interface on each DX connection. Wouldnt that be a private virtual interface making this answer wrong from the start? Plus transit gateways can do peering. So C would work just fine.
upvoted 8 times
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Jesuisleon
1 year, 5 months ago
Your explication for B is wrong. I don't see VPN in the question. B is wrong because you need private VIFs over DX connection to connect to VPC. Public VIFs can only connect to public services like S3 etc.
upvoted 2 times
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aandc
Highly Voted 2 years, 5 months ago
C: All AWS application workloads must be connected to one another -> transit-gateway
upvoted 6 times
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SkyZeroZx
Most Recent 1 year, 5 months ago
Selected Answer: C
C Ref : https://docs.aws.amazon.com/whitepapers/latest/hybrid-connectivity/aws-dx-dxgw-with-aws-transit-gateway-multi-regions-and-aws-public-peering.html
upvoted 1 times
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dev112233xx
1 year, 7 months ago
Selected Answer: C
C not doubts: https://www.edge-cloud.net/content/uploads/2019/12/AWS-Interconnect.png
upvoted 3 times
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davideccc
2 years, 1 month ago
Selected Answer: C
c is the right one
upvoted 1 times
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Ell89
2 years, 2 months ago
Selected Answer: C
ill go for C
upvoted 1 times
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user89
2 years, 6 months ago
C. The solution involves the following components: A transit gateway that has VPC attachments. A Direct Connect gateway. An association between the Direct Connect gateway and the transit gateway. A transit virtual interface that is attached to the Direct Connect gateway. https://docs.aws.amazon.com/directconnect/latest/UserGuide/direct-connect-gateways-intro.html
upvoted 2 times
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MuskyWilkins
2 years, 7 months ago
Selected Answer: B
The exact scenario is detailed here: https://docs.aws.amazon.com/directconnect/latest/UserGuide/direct-connect-gateways-intro.html
upvoted 3 times
Jonfernz
2 years, 6 months ago
That link actually suggests C as the answer, bruv.
upvoted 1 times
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LiamNg
2 years, 6 months ago
Agree, the answer should be B. The workload are in separate accounts. Ref to"Virtual private gateway associations across accounts" in MuskyWilkins link
upvoted 1 times
Enigmaaaaaa
2 years, 5 months ago
Where do you see in the link "ublic virtual interface "?
upvoted 2 times
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dev112233xx
1 year, 7 months ago
Why public VIF is needed? did you think about it? 😅
upvoted 1 times
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jyrajan69
2 years, 8 months ago
There must be a reason for saying its confined to one region, so DX Gateway is not required. So left with A or D, and D only option that allows for comm between VPC, so the answer is D
upvoted 1 times
sb333
2 years, 1 month ago
DX Gateway is required when you want to use a TGW (with Transit VIF per DX connection), even if only for a single Region.
upvoted 1 times
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jj22222
2 years, 10 months ago
Selected Answer: C
C. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from two DX partners for each on-premises location. Create a transit gateway and a DX gateway in a central network account. Create a transit virtual interface for each DX interface and associate them with the DX gateway. Create a gateway association between the DX gateway and the transit gateway.
upvoted 2 times
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jj22222
2 years, 10 months ago
Selected Answer: C
C looks right
upvoted 2 times
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Derrick888
2 years, 11 months ago
Selected Answer: C
C. for sure
upvoted 2 times
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cldy
2 years, 12 months ago
C. Configure multiple AWS Direct Connect (DX) 10 Gbps dedicated connections from two DX partners for each on-premises location. Create a transit gateway and a DX gateway in a central network account. Create a transit virtual interface for each DX interface and associate them with the DX gateway. Create a gateway association between the DX gateway and the transit gateway.
upvoted 1 times
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AzureDP900
2 years, 12 months ago
It is C
upvoted 1 times
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andylogan
3 years ago
It's C
upvoted 1 times
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Kopa
3 years, 1 month ago
Im for C. TransitGateway makes sense.
upvoted 1 times
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tgv
3 years, 1 month ago
CCC ---
upvoted 1 times
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A (35%)
C (25%)
B (20%)
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