These are my study notes from the book: “Aruba Certified Switching Associate – Official Certification Study Guide (Exam HPE6-A72)” 4. VLANS 5. Spanning-Tree Protocol 6. Link Aggregation 7. IPv4 Routing Part 1 9. IP Routing Part 2 10 . IP Routing Part 3 11. OSPFv2 Single Area 12. Stacking 13. Secure Management and Maintenance…