What advantages are there in using a hub-and-spoke IPSec VPN configuration instead of a fully- meshed set of IPSec tunnels? (Select all that apply.)

A hub-and-spoke topology can introduce a single point of failure at the hub; therefore, it generally provides less inherent redundancy than a fully-meshed topology, which has direct paths between all nodes.

In a network with 'n' sites, a fully-meshed VPN requires n*(n-1)/2 tunnels, while a hub-and-spoke configuration requires only 'n-1' tunnels (one from each spoke to the central hub). This significantly reduces the configuration complexity and management overhead.

The strength of encryption in an IPSec VPN is determined by the chosen encryption algorithms (e.g., AES, 3DES) and hashing algorithms (e.g., SHA256, MD5), not by the network topology (hub-and-spoke vs. full-mesh).

In a hub-and-spoke topology, each spoke device only needs to maintain routing information to reach the central hub. All inter-spoke traffic and traffic to the central network is forwarded through the hub, simplifying the routing tables and configuration on individual spoke nodes.