A company operates in the us-east-1 Region and the us-west-1 Region.

Vendor: Amazon Web Services
Product: ANS-C01
Update on: Jul 31, 2025
Questions: 288

Amazon Web Services ANS-C01 Question Answer

A company operates in the us-east-1 Region and the us-west-1 Region. The company is designing a solution to connect an on-premises data center to the company's AWS environment in us-east-1. The solution uses two AWS Direct Connect connections.

Traffic from us-west-1 to the data center needs to traverse the Direct Connect connections. A network engineer needs to set up active-passive functionality across the two Direct Connect connections by using a Direct Connect gateway to influence inbound traffic from VPCs that are in us-west-1 to the data center.

Which solution will meet these requirements?

At the data center, set the local preference for the primary connection to be higher than the local preference for the secondary connection.

Use AS path prepending to set the AS path on the primary connection to be longer than the AS path on the secondary connection.

Use local preference BGP community tags to apply the 7224:7300 local preference BGP community tag to the prefixes for the primary connection. Apply the 7224:7100 local preference BGP community tag to the prefixes for the secondary connection.

Use local preference BGP community tags to apply the 7224:9300 local preference BGP community tag to the prefixes for the primary connection. Apply the 7224:9100 local preference BGP community tag to the prefixes for secondary connection.