Which WAN topology provides the greatest reliability and redundancy?
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Correct answer: full mesh.
Why this is the answer
A full mesh topology offers the greatest reliability and redundancy because every device is connected directly to every other device. This creates multiple paths for data transmission. If one link fails, data can still reach its destination through an alternative path. Point-to-point topologies connect only two devices, offering no redundancy if that single link fails. Router-on-a-stick is a method for inter-VLAN routing on a single router interface, not a WAN topology. Hub-and-spoke topologies have a central hub, and if the hub fails, the entire network segment connected to it goes down, making it less redundant than a full mesh.
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