What are the uses of different types of queries in sensor networks? Explain clearly.
What will be an ideal response?
Various types of queries in a sensor network are
(a) Historical queries (ask about past information, e.g., readings of pressure for the past week.)
(b) Snapshot queries (query the sensor network at a given point of time, e.g., the pressure reading at a particular time instant).
(c) Future queries (query a sensor network over a future time interval, e.g., in the next one hour, if the temperature reading exceeds 70, takes appropriate action).
(d) Long running queries, e.g., those that deal with status over a user defined time period.
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Fill in the blank(s) with correct word