For data to move between the different nodes, or devices, a network navigation device is often added to the network

Design a query evaluation algorithm for the ROLLUP operator. The objective of such an algorithm should be that the results of the previously computed aggregations are reused in subsequent aggregations and not recomputed from scratch.

What will be an ideal response?

The number of calls to recursively calculate the Fibonacci value of 7 is:

a. 7 b. 13 c. 41 d. 39