AWS Certified Advanced Networking – Specialty ANS-C00 – Question174

Your company has a DX connection and you just added a new VPC and Private VIF to which you have connected to your DX link. You copied the settings from the other VPC to ensure it's the same. Once you connected the new VIF, you began seeing problems with connectivity to both VPCs.
You checked to make sure you didn't use the same CIDR with each VPC, so what could be the problem?

A.
You used the same VLAN ID for both connections.
B. You overloaded your DX circuit.
C. Your MPLS provider does not allow traffic to two VPCs.
D. You can only connect one VIF to a DX circuit.

Correct Answer: A

Explanation:

Explanation:
You can only have 1 instance of any VLAN ID.