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ANS-C01 · Question #24

A company has deployed Amazon EC2 instances in private subnets in a VPC. The EC2 instances must initiate any requests that leave the VPC, including requests to the company's on- premises data center…

The correct answer is C. Deploy a NAT gateway into a private subnet in the VPC where the EC2 instances are deployed. https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-gateway.html

Submitted by salim_om· Mar 6, 2026Implement Core Network Services

Question

A company has deployed Amazon EC2 instances in private subnets in a VPC. The EC2 instances must initiate any requests that leave the VPC, including requests to the company's on- premises data center over an AWS Direct Connect connection. No resources outside the VPC can be allowed to open communications directly to the EC2 instances. The on-premises data center's customer gateway is configured with a stateful firewall device that filters for incoming and outgoing requests to and from multiple VPCs. In addition, the company wants to use a single IP match rule to allow all the communications from the EC2 instances to its data center from a single IP address. Which solution will meet these requirements with the LEAST amount of operational overhead?

Options

  • ACreate a VPN connection over the Direct Connect connection by using the on-premises firewall.
  • BConfigure the on-premises firewall to filter all requests from the on-premises network to the EC2
  • CDeploy a NAT gateway into a private subnet in the VPC where the EC2 instances are deployed.
  • DDeploy a NAT instance into a private subnet in the VPC where the EC2 instances are deployed.

How the community answered

(36 responses)
  • A
    19% (7)
  • B
    8% (3)
  • C
    61% (22)
  • D
    11% (4)

Explanation

https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-gateway.html

Topics

#NAT Gateway#Private Subnet Networking#Outbound Connectivity#Operational Overhead

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