Cisco Certified Network Professional 2026 – 400 Free Practice Questions to Pass the Exam

The term 'dynamic tunnel creation' in DMVPN (Dynamic Multipoint Virtual Private Network) refers to the automatic establishment of VPNs as needed. This feature allows for the on-demand creation of secure connections between remote sites without requiring a pre-configured static tunnel for each connection. When a packet is sent from one site to another that does not have a predefined tunnel set up, DMVPN dynamically creates that tunnel as needed. This capability is particularly beneficial in environments where the number of sites can change frequently or where secure communication needs to occur sporadically, as it increases flexibility and reduces administrative overhead.

On the other hand, static connections between two sites involve manually configuring each connection, which does not allow for the scalability and flexibility offered by dynamic tunnels. Constant communication without routing protocols is not a characteristic of DMVPN, as routing protocols are essential for establishing the paths that the dynamic tunnels use. Fixed IP address allocation is also unrelated to the concept of dynamic tunnel creation, as it pertains to how addresses are assigned rather than how tunnels are established. Thus, the correct answer highlights the key advantage of DMVPN's ability to adaptively create secure connections based on the current network demands.