A split form provides two views of the same data—a form view and a layout view

The ISO/IEC 29119 standard uses a risk-based model that consists of how many different tiers?

A. 2 B. 3 C. 4 D. 5

Each child element may contain children of its own and so forth down the hierarchy, creating a set of _________ that are all descended from a common parent.?

Fill in the blank(s) with the appropriate word(s).