Examlex
A photo-sharing website running on AWS allows users to generate thumbnail images of photos stored in Amazon S3. An Amazon DynamoDB table maintains the locations of photos, and thumbnails are easily re-created from the originals if they are accidentally deleted. How should the thumbnail images be stored to ensure the LOWEST cost?
Herfindahl Index
An economic indicator used to assess the level of concentration and competition within an industry, calculated by summing the squares of the market shares of all firms in the market.
Four-Firm Concentration Ratio
An indicator measuring the total market share controlled by the four largest firms within an industry, used to assess the level of competition.
Merged
The process of combining two or more entities into one, typically referring to businesses or corporations uniting to form a single new entity.
Herfindahl Index
An assessment of how large companies are in proportion to their industry, serving as a sign of competitive dynamics.
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