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Regarding Cisco switches, what is the different between a switch cluster vs a switch stack?<br />
When would you use them and why. 
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Regarding Cisco switches, what is the different between a switch cluster vs a switch stack?
When would you use them and why. 

clustering of Cisco switches

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.