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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 39 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 39
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company is planning to deploy many software-defined WAN (SD-WAN) sites. The company is using AWS Transit Gateway and has deployed a transit gateway in the required AWS Region. A network engineer needs to deploy the SD-WAN hub virtual appliance into a VPC that is connected to the transit gateway. The solution must support at least 5 Gbps of throughput from the SD-WAN hub virtual appliance to other VPCs that are attached to the transit gateway.
Which solution will meet these requirements?

  • A. Create a new VPC for the SD-WAN hub virtual appliance. Create two IPsec VPN connections between the SD-WAN hub virtual appliance and the transit gateway. Configure BGP over the IPsec VPN connections
  • B. Assign a new CIDR block to the transit gateway. Create a new VPC for the SD-WAN hub virtual appliance. Attach the new VPC to the transit gateway with a VPC attachment. Add a transit gateway Connect attachment. Create a Connect peer and specify the GRE and BGP parameters. Create a route in the appropriate VPC for the SD-WAN hub virtual appliance to route to the transit gateway.
  • C. Create a new VPC for the SD-WAN hub virtual appliance. Attach the new VPC to the transit gateway with a VPC attachment. Create two IPsec VPN connections between the SD-WAN hub virtual appliance and the transit gateway. Configure BGP over the IPsec VPN connections.
  • D. Assign a new CIDR block to the transit gateway. Create a new VPC for the SD-WAN hub virtual appliance. Attach the new VPC to the transit gateway with a VPC attachment. Add a transit gateway Connect attachment. Create a Connect peer and specify the VXLAN and BGP parameters. Create a route in the appropriate VPC for the SD-WAN hub virtual appliance to route to the transit gateway.
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Suggested Answer: B 🗳️
by zaazanuna at March 18, 2023, 11:41 p.m.
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study_aws1
Highly Voted 1 year, 10 months ago
Should be B) A Connect attachment uses an existing VPC or AWS Direct Connect attachment as the underlying transport mechanism. • Supports Generic Routing Encapsulation (GRE) tunnel protocol for high performance, and Border Gateway Protocol (BGP) for dynamic routing.
upvoted 14 times
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Raphaello
Most Recent 10 months, 2 weeks ago
Selected Answer: B
B is the correct answer. TGW Connect attachment over VPC attachment, with GRE and BGP used.
upvoted 4 times
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tromyunpak
10 months, 3 weeks ago
B is the correct answer due to GRE and connect peer which delivers 5GB/s A is wrong due to IPSEC is 1.25/Gb/s per vpn even ECMP configured you get less than 5Gb/s C is wrong same as A D is wrong VXLAN is not supported with TGW
upvoted 2 times
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marfee
1 year ago
I think that it's correcty answer is B.
upvoted 1 times
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FayeG
1 year, 3 months ago
Selected Answer: B
Although SD-WAN devices can use VXLAN only GRE is support on TGW as of this comment's timestamp.
upvoted 1 times
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skiingfalcon
1 year, 4 months ago
Selected Answer: B
https://aws.amazon.com/blogs/networking-and-content-delivery/simplify-sd-wan-connectivity-with-aws-transit-gateway-connect/
upvoted 1 times
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prajkash
1 year, 7 months ago
Voting for B
upvoted 1 times
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symplesims
1 year, 8 months ago
Exactly B https://aws.amazon.com/blogs/networking-and-content-delivery/simplify-sd-wan-connectivity-with-aws-transit-gateway-connect/
upvoted 3 times
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albertkr
1 year, 9 months ago
Selected Answer: B
https://aws.amazon.com/blogs/networking-and-content-delivery/integrate-sd-wan-devices-with-aws-transit-gateway-and-aws-direct-connect/
upvoted 1 times
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Chinmoy
1 year, 9 months ago
Selected Answer: B
Gre and baby with connect attachment
upvoted 1 times
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ITgeek
1 year, 9 months ago
Selected Answer: B
Should b B
upvoted 2 times
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silviahdz
1 year, 10 months ago
Selected Answer: B
B is the correct answer, TGW Connect is setup with GRE and BGP no mention of VXLAN: https://aws.amazon.com/transit-gateway/faqs/
upvoted 3 times
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Jotoval
1 year, 10 months ago
Sould be B according this document. https://aws.amazon.com/es/blogs/networking-and-content-delivery/simplify-sd-wan-connectivity-with-aws-transit-gateway-connect/
upvoted 2 times
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helloworldabc
1 year, 10 months ago
DDDDDDDD
upvoted 1 times
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zaazanuna
1 year, 11 months ago
D - correct.
upvoted 1 times
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