Two VPCs exist in the account: VPC A uses CIDR 10.0.0.0/16 and VPC B uses CIDR 172.31.0.0/16. A VPC peering connection with ID pcx-12345 is established between them. After configuring peering, which entries should be present in VPC A's route table? (Choose two.)
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Correct answer: Destination: 10.0.0.0/16, Target: Local, Destination: 172.31.0.0/16, Target: pcx-12345.
Why this is the answer
The correct entries for VPC A's route table are "Destination: 10.0.0.0/16, Target: Local" and "Destination: 172.31.0.0/16, Target: pcx-12345". The "Local" route (10.0.0.0/16) is automatically present in any VPC's route table, allowing resources within VPC A to communicate with each other. To enable communication with VPC B via the peering connection, a route must be added to VPC A's route table. This route specifies VPC B's CIDR (172.31.0.0/16) as the destination and the VPC peering connection ID (pcx-12345) as the target. The option "Destination: 172.31.0.0/16, Target: Local" is incorrect because 172.31.0.0/16 is not local to VPC A. The option "Destination: 10.0.0.0/16, Target: pcx-12345" is incorrect because traffic destined for VPC A's own CIDR should be routed locally, not through the peering connection. The option "Destination: 10.0.0.0/16, Target: 172.31.0.0/16" is an invalid route table entry format.
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