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Broadcast domain. A broadcast domain is a logical division of a computer network, in which all nodes can reach each other by broadcast at the data link layer. A broadcast domain can be within the same LAN segment or it can be bridged to other LAN segments.
if i have understand correcly the diagram you will have 2 broadcast domain and as many connection the switch has for collision domain. Generally each vlan is a broadcast domain and each port of the switch is collision domain. Broadcast domain doesn't travel through the routers or the VLAN. I hope i was helpful.