If you implement a stack using an array, where should the bottom element of the stack be placed?

When attempting to diagnose service access issues between multiple hosts that coordinate information, which of the following can be used to track dependencies?

A. Dataflow diagrams B. Architecture diagrams C. Baseline documentation D. Service manuals

Which technique is least likely to be used to quantify intangible benefits?

A. opinion surveys B. simulation models C. professional judgment D. review of accounting transaction data