CompTIA Network+ (N10-009) — Question 183

Which of the following is the correct order of components in a bottom-up approach for the three-tier hierarchical model?

Answer options

• A. Access, distribution, and core
• B. Core, root, and distribution
• C. Core, spine, and leaf
• D. Access, core, and root

Correct answer: A

Explanation

The correct answer is A, as the bottom-up approach starts with access layers, followed by distribution, and finally the core layer. Options B and D misplace the core and distribution layers, while option C refers to a different model structure that is not applicable in this context.