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

question 31

Multiple Choice

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

• A)100 or more
• B)100 or less
• C)50 or less
• D)at least 300

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Definitions:

Artery Wall

The layered structure of an artery, composed of an inner endothelium, a middle muscular layer, and an outer connective tissue.

Vasa Vasorum

Small vessels distributed to the outer and middle coats of larger blood vessels.

Arteries

Blood vessels that carry blood away from the heart to various parts of the body.

Veins

Blood vessels that carry blood towards the heart, typically carrying deoxygenated blood from the tissues back to the heart, except for pulmonary and umbilical veins.