Cisco Certified DevNet Professional DEVCOR 350-901 Official Cert Guide

Appendix D

Memory Tables Answer Key

Chapter 1

Table 1-2 Simple Comparison Between Functional and Nonfunctional Requirements

Functional	Nonfunctional
Use case or business process specific	System quality attribute specific
Mandatory	Not mandatory/affected by trade-offs
Functionality specific	Performance or quality specific
User requirements	User experience
Test for functionality	Test for performance, security, etc.
Describe as can or shall	Describes as must or should

Table 1-3 Comparative Analysis of the Various Development Models

Model	Pros	Cons
Waterfall	Provides simple, easy-to-understand deliverables and stakeholders Rigid Suitable where strict control is needed Good for small or shorter-term projects