Question

What is the purpose of the positional map index in NoDB?

a.

To provide direct access to loaded data.

b.

To track the positions of all attributes in the raw file.

c.

To identify rows that meet filtering conditions.

d.

To enable future queries to access locations in the raw file efficiently.

Posted under Big Data Computing

Answer: (d).To enable future queries to access locations in the raw file efficiently. Explanation:The purpose of the positional map index in NoDB is to enable future queries to access locations in the raw file efficiently. It helps queries directly access a location close to what they need in the raw file.

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