A New Service Using AWS Must Be Highly Available

question 199

Multiple Choice

A new service using AWS must be highly available. Yet, due to regulatory requirements, all of its Amazon EC2 instances must be located in a single geographic area. According to best practices, to meet these requirements, the EC2 instances must be placed in at least two:

• A) AWS Regions
• B) Availability Zones
• C) subnets
• D) placement groups

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Definitions:

Shutdown Quantity

The amount of output at which a company's revenue just covers its variable costs, prompting it to cease operations temporarily if prices fall below this level.

Monopolistically Competitive

This refers to a market structure where many companies sell products that are similar but not identical, allowing for some degree of market power and product differentiation.

Economic Profit

The difference between a firm's total revenues and its opportunity costs, representing the additional gain over what could have been earned in the next best alternative.

Normal Profit

The minimum level of earnings needed for a company to remain in business, often considered as the company's opportunity cost.