An Application Runs on Multiple EC2 Instances Behind an ELB

question 17

Multiple Choice

An application runs on multiple EC2 instances behind an ELB. Where is the session data best written so that it can be served reliably across multiple requests?

• A) Write data to Amazon ElastiCache
• B) Write data to Amazon Elastic Block Store.
• C) Write data to Amazon EC2 Instance Store.
• D) Write data to the root filesystem.

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Definitions:

Hypokalemia

A medical condition characterized by lower than normal levels of potassium in the bloodstream.

Prolonged Vomiting

A condition of continuous or recurrent emesis over an extended period, which may lead to dehydration and electrolyte imbalances.

Stomach Contents

The mixture of ingested food, digestive enzymes, and acids found within the stomach.

Osmolarity

A measure of solute concentration per liter of solution, often used in the context of biological fluids.