When Using MapReduce,best Practices Suggest That the Number of Mappers

question 51

Multiple Choice

When using MapReduce,best practices suggest that the number of mappers on a given node should be ______.

• A) 50 or less
• B) over 100 but less than 300
• C) 100 or less
• D) at least 300

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Definitions:

Rated Frequency

The specific frequency at which an electrical device or piece of equipment is designed to operate most effectively and efficiently.

Constant Horsepower

A motor characteristic where horsepower remains constant across varying speeds.

Rectifier

A device that converts alternating current (AC) to direct current (DC).

Converter

A device that changes electrical energy from one form to another, such as AC to DC or vice versa.