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Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 48 Topic 5 Discussion

Amazon Web Services AWS Certified Solutions Architect - Associate (SAA-C03) SAA-C03 Question # 48 Topic 5 Discussion

SAA-C03 Exam Topic 5 Question 48 Discussion:
Question #: 48
Topic #: 5

An ecommerce company hosts an application on AWS across multiple Availability Zones. The application experiences uniform load throughout most days.

The company hosts some components of the application in private subnets. The components need to access the internet to install and update patches.

A solutions architect needs to design a cost-effective solution that provides secure outbound internet connectivity for private subnets across multiple Availability Zones. The solution must maintain high availability.


A.

Deploy one NAT gateway in each Availability Zone. Configure the route table for each pri-vate subnet within an Availability Zone to route outbound traffic through the NAT gateway in the same Availability Zone.


B.

Place one NAT gateway in a designated Availability Zone within the VPC. Configure the route tables of the private subnets in each Availability Zone to direct outbound traffic specifi-cally through the NAT gateway for internet access.


C.

Deploy an Amazon EC2 instance in a public subnet. Configure the EC2 instance as a NAT instance. Set up the instance with security groups that allow inbound traffic from private sub-nets and outbound internet access. Configure route tables to direct traffic from the private sub-nets through the NAT instance.


D.

Use one NAT Gateway in a Network Load Balancer (NLB) target group. Configure private subnets in each Availability Zone to route traffic to the NLB for outbound internet access.


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