You Require the Ability to Analyze a Large Amount of Data

question 692

Multiple Choice

You require the ability to analyze a large amount of data, which is stored on Amazon S3 using Amazon Elastic Map Reduce. You are using the cc2 8xlarge instance type, whose CPUs are mostly idle during processing. Which of the below would be the most cost efficient way to reduce the runtime of the job?

• A) Create more, smaller flies on Amazon S3.
• B) Add additional cc2 8xlarge instances by introducing a task group.
• C) Use smaller instances that have higher aggregate I/O performance.
• D) Create fewer, larger files on Amazon S3.

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Definitions:

Physiological Change

Alterations in the body's normal physiological state, which can occur in response to various stimuli or as part of normal processes.

Consolidation

The process by which memories become stable in the brain, often involving the strengthening of the neural network that represents the memory.

Retrieval

The process of getting information out of memory storage and back into conscious awareness.

Consciousness

The state of being aware of and able to think about one's own existence, sensations, thoughts, surroundings, and experiences.