Which two statements describe the hierarchical LAN design model?

The hierarchical LAN design model — access, distribution, core — provides:

Scalability through structured hierarchy (A).

Easier change management and staged deployments since functions are isolated at each layer (E).

CCDE v3.1 emphasizes hierarchy for long-term scalability, manageability, and operational stability.

Why other options are incorrect:

B: Modern data centers favor spine-leaf over traditional hierarchy.

C: The model simplifies rather than complicates.

D: Simplification is not its primary advantage — scalability and modularity are.

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