AWS Certified SysOps Administrator – Associate (legacy) — Question 502

A company has deployed a NAT instance to allow web servers to obtain software updates from the internet. There is high latency on the NAT instance as the network grows. A SysOps Administrator needs to reduce latency on the instance in a manner that is efficient, cost-effective, and allows for scaling with future demand.
Which action should be taken to accomplish this?

Answer options

• A. Add a second NAT instance and place both instances behind a load balancer
• B. Convert the NAT instance to a larger instance size
• C. Replace the NAT instance with a NAT gateway
• D. Replace the NAT instance with a virtual private gateway

Correct answer: A

Explanation

Deploying a second NAT instance and distributing traffic via a load balancer allows for horizontal scaling to handle increased traffic and reduce latency efficiently. Upgrading to a larger instance size only scales vertically and may quickly hit limits, while a virtual private gateway is used for VPN/Direct Connect connections rather than outbound internet access.