This repository documents my coursework, hands-on labs, and exam preparation for my CCNA2 (Switching, Routing, and Wireless Essentials) course, completed through Hackademy, at University Politehnica of Bucharest (UPB), between March and May 2026.
The course was followed in parallel with my Communication Protocols course (2nd Year, 2nd Semester). The overlap between these two courses reinforced both my theoretical foundations (OSI/TCP-IP model, VLANs, routing protocols, link-state vs. distance-vector algorithms) and my practical implementation side (Packet Tracer simulations and Activities).
This repository serves as a record of my complete learning path: lecture materials, solved labs, and exam practice tests, each organized by topic.
Important
My Cisco Networking Academy CCNA2 Certificate, obtained upon completing the Hackademy course, can be reviewed here: → NETACAD CCNA2 Certificate.
| Module | Concepts |
|---|---|
| Switched Network Concepts | Switching operation, MAC address tables, frame forwarding, collision/broadcast domains, hierarchical network design (access, distribution, core layers) |
| VLANs | VLAN segmentation, VLAN trunking (802.1Q), native VLAN, VLAN troubleshooting |
| Inter-VLAN Routing | Router-on-a-stick, Layer 3 switching, subinterfaces |
| Spanning Tree Protocol (STP) | Loop prevention, bridge IDs, port roles and states, PVST+, Rapid PVST+ |
| EtherChannel | Link aggregation, load balancing, LACP and PAgP protocols |
| Static Routing | Static and default routes, route summarization, floating static routes |
| Dynamic Routing Protocols | RIPv1 and RIPv2 (distance-vector), EIGRP (advanced distance-vector), OSPF (link-state) — operation, metric calculation, neighbor adjacencies, route selection |
| DHCP | DHCP operation (DORA process), DHCP relay, DHCPv4/DHCPv6 configuration and troubleshooting |
| FHRP | First Hop Redundancy Protocols — HSRP and VRRP concepts, gateway redundancy |
| Network Security & Attack Types | Common Layer 2 attacks (MAC flooding, VLAN hopping, DHCP spoofing/starvation, ARP spoofing, STP manipulation), port security, mitigation techniques |
| ACLs | Standard and extended access control lists, ACL placement and design, named ACLs |
| NAT & Tunneling | Static and dynamic NAT, PAT (NAT overload), tunneling fundamentals |
| Wireless | WLAN fundamentals and configuration |
- Cisco Packet Tracer — used for all
.pkt/.pkalab files. These can be opened with Cisco Packet Tracer, free for NetAcad students.
Lecture slides and chapter materials under Cursuri/Hackademy/ are property of Hackademy and are included here strictly for personal academic reference. All lab configurations, topologies and exam solutions are my own work.