ANS-C01 · Question #234
A company has deployed an application in which the front end of the application communicates with the backend instances through a Network Load Balancer (NLB) in the same VPC. The application is highly
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Question
A company has deployed an application in which the front end of the application communicates with the backend instances through a Network Load Balancer (NLB) in the same VPC. The application is highly available across two Availability Zones. The company wants to limit the amount of traffic that travels across the Availability Zones. Traffic from the front end of the application must stay in the same Availability Zone unless there is no healthy target in that Availability Zone behind the NLB. If there is no healthy target in the same Availability Zone, traffic must be sent to the other Availability Zone. Which solution will meet these requirements?
Options
- ACreate a private hosted zone with weighted routing for each Availability Zone. Point the primary
- BTurn off cross-zone load balancing on the NLConfigure the front end of the application to perform
- CCreate a private hosted zone. Create a failover record for each Availability Zone. For each
- DEnable sticky sessions (session affinity) so that the NLB can bind a user's session to targets in
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