________ is a measure of how two set of data vary simultaneously and is calculated by taking the average of each product of the deviation of a data point

Discuss the advantages and disadvantages of a walkthrough.

What will be an ideal response?

The key elements of the guaranteed service are which of the following? (Choose all correct answers.)

A) The service provides assured capacity, or data rate. B) There is a specified upper bound on the queuing delay through the network. C) There are no queuing losses. D) The service tightly approximates the behavior visible to applications receiving best effort service under unloaded conditions.