A company has set up a NAT gateway in a single Availability Zone (AZ1) in a VPC (VPC1) to access the internet from Amazon EC2 workloads in the VPC. The EC2 workloads are running in private subnets in three Availability Zones (AZ1, AZ2, AZ3). The route table for each subnet is configured to use the NAT gateway to access the internet. Recently during an outage, internet access stopped working for the EC2 workloads because of the NAT gateway's unavailability. A network engineer must implement a solution to remove the single point of failure from the architecture and provide built-in redundancy. Which solution will meet these requirements?
Select one answer.
Marked answer: D
Community Discussion
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
1
D is correct. no VIP in NAT GW!
3
D is correct - as you will have 1 NAT per AZ with each subnet has its own route table A is wrong since you cannot use virtual IP of the NAT gateway (feature not available) C is wrong due to the fact that a new vpc is not required B is wrong since AZ2 & AZ3 are sharing the same nat gatweway
