JN0-1103 Exam Dumps : Design - Associate (JNCIA-Design)

For a 120-meter (400-foot) connection between switches, multimode fiber is the most reliable and cost-effective option. It supports higher bandwidth and longer distances than UTP (which is limited to 100 meters) and is more stable and secure than a wireless solution.

IPsec with NAT Traversal (NAT-T) encapsulates IPsec packets within UDP headers, adding additional overhead compared to standard IPsec. This results in higher packet overhead, which can affect performance and MTU handling more than other VPN protocols.

Modularity in network design allows for easier scalability, troubleshooting, and future upgrades by segmenting the network into functional blocks. This approach simplifies management and enhances the network's ability to adapt to changing requirements.