________ testing involves releasing new software to a limited group of users for error testing

Why is the traversal of a graph different from a tree?

a. There can be a loop in a graph so we must maintain a visited flag for every vertex b. DFS of a graph uses stack, but in-order traversal of a tree is recursive c. BFS of a graph uses queue, but a time efficient BFS of a tree is recursive d. All of the above

In 100BaseT, what is the maximum number of nodes per hub/switch?

A. 48 B. 256 C. 1024 D. 2048