What devices separate collision domains?
Switches, routers, and gateways.
Network+ Guide to Networks answer: Bridge, Switch, Router
Bridge is a interface between two or more separate collision domains (limits broadcast to devices connected onto that port only). While Gateway is exit or entrance point to a network and performs changes in protocols if required for e.g. DSL Broadband router connection.gateway may have protocol translators but bridge can not.
No- A VLAN is a single broadcast domain. If the VLAN uses a hub, which essentially connects all devices on a single wire, the the VlAN would be a collision domain. However hubs are rarely seen these days. A network switch keeps every device separated on individual collision domains so every device is kept from colliding with any other device.
Packet in Computer Networkingis a slice of DATA that needs to be sent through physical medium of communication to other device on the network. Packet has a well defined strucuture based on Protocol used for identifying source and destination devices. Physical medium can be wired or wireless, depends on the type of Network Interface Card been used. Packets are transmitted over physical medium. During the transmission of Packets from Network Interface Card when two cards…
There is no purpose. It is rather unfortunate downside. In early years of networking networks were not capable of full duplex as result admins had to deal with collision domains. Problem of collision domains does not exist in modern equipment because data sent and received on different pairs of wires. There are exceptions but they are not applicable to the most of situations admins have to deal with.
Answer Yes. You can't split a broadcast domain without also splitting the collision domain. The only devices that can split a broadcast domain are routers and layer 3 switches. Switches, bridges, and routers can all be used to split the collision domain. Hubs and repeaters do not split the collision domain or the broadcast domain.