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Exam ANS-C00 topic 1 question 289 discussion

Exam question from Amazon's ANS-C00
Question #: 289
Topic #: 1
[All ANS-C00 Questions]

After setting an AWS Direct Connect, which of the following cannot be done with an AWS Direct Connect Virtual Interface?

  • A. You can delete a virtual interface; if its connection has no other virtual interfaces, you can delete the connection.
  • B. You can change the region of your virtual interface.
  • C. You can create a hosted virtual interface.
  • D. You can exchange traffic between the two ports in the same region connecting to different Virtual Private Gateways (VGWs) if you have more than one virtual interface.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
You must create a virtual interface to begin using your AWS Direct Connect connection. You can create a public virtual interface to connect to public resources or a private virtual interface to connect to your VPC. Also, it is possible to configure multiple virtual interfaces on a single AWS Direct Connect connection, and you'll need one private virtual interface for each VPC to connect to. Each virtual interface needs a VLAN ID, interface IP address, ASN, and BGP key. To use your AWS
Direct Connect connection with another AWS account, you can create a hosted virtual interface for that account. These hosted virtual interfaces work the same as standard virtual interfaces and can connect to public resources or a VPC.
Reference:
http://docs.aws.amazon.com/directconnect/latest/UserGuide/WorkingWithVirtualInterfaces.html

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walkwolf3
Highly Voted 3 years, 7 months ago
B For answer D, you can associate VGW to TGW, and exchange data between VPCs, VPCs and on-premises networks. https://aws.amazon.com/blogs/architecture/field-notes-working-with-route-tables-in-aws-transit-gateway/
upvoted 6 times
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Bobip
Most Recent 3 years ago
Answer is D, because it is only possible if they are connecting to the same VGW , not in different VGW Q: If I have more than one virtual interface attached, can I exchange traffic between the two ports? Not for public Direct Connect virtual interfaces; but you can exchange traffic between the two ports in the same region if they are connecting to the same VGW. Ref: https://www.amazonaws.cn/en/directconnect/faqs/
upvoted 1 times
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jerac58653
3 years ago
Selected Answer: B
VIF is associated with VLAN that has local significance it is not global. You can not switch regions keeping the same VLAN and respectively VIF.
upvoted 1 times
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2shyshy
3 years, 4 months ago
D is correct. You cannot exchange traffic between the two ports in the same region connecting to different Virtual Private Gateways (VGWs) if you have more than one virtual interface. For this to be able to happen you would need two Direct Connect Gateways, and traffic would be sent to on premise from VPC A in order to communicate to VPC B
upvoted 1 times
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Huy
3 years, 7 months ago
This question should have 2 answers B &D. https://www.amazonaws.cn/en/directconnect/faqs/
upvoted 3 times
ptpho
3 years, 7 months ago
I have same opinion { B - You can provision a private virtual interface to a virtual private gateway in the same Region as your AWS Direct Connect connection. -> cannot change in interface level D- Related to VLAN -> Need both parties cooperate to change }
upvoted 1 times
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ChauPhan
3 years, 7 months ago
B. You can change the region of your virtual interface.
upvoted 1 times
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eeghai7thioyaiR4
3 years, 7 months ago
B is wrong Virtual interface is global, so you cannot change its region
upvoted 2 times
Huy
3 years, 7 months ago
More precise, it doesn't belong to any region. Its location is at Direct Connect location. Because of the physical, it only allow VGWs in the same region (can be different account) to use.
upvoted 1 times
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aspnpl
2 years, 12 months ago
you're wrong. its based on region and you can't change the region once you create it. Tested in lab.
upvoted 1 times
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Huntkey
3 years, 8 months ago
I think I will go with B... D is possible if the traffic is going through your on-prem router or the customer router in the colo right?
upvoted 3 times
wahlbergusa
3 years, 7 months ago
right.
upvoted 2 times
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Paagee
3 years, 8 months ago
Is B possible? Can't find virtual interface region setting.
upvoted 3 times
Huntkey
3 years, 8 months ago
I think B is wrong too. The region is selected when you create the connection, not the VIF. I guess the VIF will use the region for the connection.
upvoted 2 times
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