Which network design may be recommended for a small campus site that consists of a single building with a few users?

Question:
Which network design may be recommended for a small campus site that consists of a single building with a few users?

• a network design where the access and core layers are collapsed into a single layer
• a collapsed core network design
• a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions
• a network design where the access and distribution layers are collapsed into a single layer

Exam with this question: CCNA 2 (v5.0.3 + v6.0) Practice Final Exam Answers