An E-Commerce Company Wants to Lower Costs on Its Nightly

question 218

Multiple Choice

An e-commerce company wants to lower costs on its nightly jobs that aggregate the current day's sales and store the results in Amazon S3. The jobs are currently run using multiple on-demand instances and the job take just under 2 hours to complete. If a job fails for any reason, it needs to be restarted from the beginning. What method is the MOST cost effective based on these requirements?

• A) Use a mixture of On-Demand and Spot Instances for job execution.
• B) Submit a request for a Spot block to be used for job execution.
• C) Purchase Reserved Instances to be used for job execution.
• D) Submit a request for a one-time Spot Instance for job execution.

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Definitions:

Surplus

A situation where the quantity of a good or service supplied exceeds the quantity demanded, often resulting in excess stock and potential price reductions.

Price Ceiling

A government-imposed limit on how high a price can be charged for a product or service, intending to protect consumers from excessive prices.

Price Floor

A price floor is a government- or authority-imposed minimum price set above the equilibrium price, preventing the market price from falling below it.

Shortage

A situation where demand for a product or service exceeds its supply in a market.