Question

In the context of stream-based query answering, what is the key idea?

a.

Storing all historical data for future queries.

b.

Continuously answering multiple registered queries over a fused stream of data.

c.

Implementing queries over multiple combined streams with sliding windows.

d.

Using temporal aggregation operators to compute aggregate values.

Posted under Big Data Computing

Answer: (b).Continuously answering multiple registered queries over a fused stream of data. Explanation:In the context of stream-based query answering, the key idea is to continuously answer multiple registered queries over a fused stream of data.

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