Which of the following is a hybrid network topology used for fault tolerance, in which all computers MUST connect to each other?

Question Incomplete –

Partial Mesh Topology is correct if keyword is “hybrid”

A partial-mesh WAN topology, as depicted in Figure 1-12, is a hybrid of the previously described hub-and-spoke topology and full-mesh topology. Specifically, a partial-mesh topology can be designed to provide an optimal route between selected sites, while avoiding the expense of interconnecting every site to every other site.

Full Mesh Topology is correct if keyword is “all”

Although a hub-and-spoke WAN topology lacked redundancy and suffered from suboptimal routes, a full-mesh topology, as shown in Figure 1-11, directly connects every site to every other site.

Well, either way on this set it’s Mesh.