A Company Has an Amazon EC2 Deployment That Has the Following

question 107

Multiple Choice

A company has an Amazon EC2 deployment that has the following architecture: An application tier that contains 8 m4.xlarge instances A Classic Load Balancer Amazon S3 as a persistent data store After one of the EC2 instances fails, users report very slow processing of their requests. A Solutions Architect must recommend design changes to maximize system reliability. The solution must minimize costs. What should the Solutions Architect recommend?

• A) Migrate the existing EC2 instances to a serverless deployment using AWS Lambda functions
• B) Change the Classic Load Balancer to an Application Load Balancer
• C) Replace the application tier with m4.large instances in an Auto Scaling group
• D) Replace the application tier with 4 m4.2xlarge instances

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Definitions:

Price Floor

A government- or group-imposed price control or limit on how low a price can be charged for a product, good, commodity, or service.

Supply Function

A mathematical relation showing the amount of goods a supplier is willing and able to provide to the market at various prices, holding all other factors constant.

Demand Function

A demand function quantifies the relationship between the price of a good and the quantity demanded by consumers, holding other factors constant.

Supply Curve

A supply curve graphically represents the relationship between the price of a good and the quantity of the good that producers are willing and able to supply, typically sloping upwards.