A Company Has an Application Running on Amazon EC2 Instances

question 155

Multiple Choice

A company has an application running on Amazon EC2 instances in a private subnet that connects to a third-party service provider's public HTTP endpoint through a NAT gateway. As request rates increase, new connections are starting to fail. At the same time, the ErrorPortAllocation Amazon CloudWatch metric count for the NAT gateway is increasing. Which of the following actions should improve the connectivity issues? (Choose two.)

• A) Allocate additional elastic IP addresses to the NAT gateway.
• B) Request that the third-party service provider implement HTTP keepalive.
• C) Implement TCP keepalive on the client instances.
• D) Create additional NAT gateways and update the private subnet route table to introduce the new NAT gateways.
• E) Create additional NAT gateways in the public subnet and split client instances into multiple private subnets, each with a route to a different NAT gateway.

---

Definitions:

Income Effect

The relationship between income fluctuations in an individual’s or economic environment’s finances and its influence on the quantity of goods or services demanded.

U.S. GDP

The total market value of all final goods and services produced within the United States during a specific time period.

Farm Outputs

The total variety and quantity of goods produced by farming activities, including crops, livestock, and other agricultural products.

Dairy Margin Protection Program

A federal program in the United States designed to protect dairy producers when the margin between milk prices and feed costs falls below a certain level.