because one layer is the electrical part, and the other layer is the place where the switch is on.
A Switch is a Layer 2 device as they operate in the data link layer
A layer 3 switch or a router.
There are no switches that operate on layer 7 (Application layer) on the OSI Model. Switches are a layer-2 device because they manage and switch frames.
Bridge
VSAT is a layer 2 device.
firewall, router,layer 3 switches and i approve that answer ! NO! In general the firewall is a layer 4 device, it traffics filter incoming and outgoing ports. It uses the function of TCP and UCP. However a Firewall can also be a layer 3 device as in internal firewall in a router. Also a switch is a layer 2 device unless your talking about a Router switch.
That is called the MAC address.
1)Hub is a layer 1(physical layer)device whereas switch is a layer 2(datalink) device. 2)Hub sends data to all ports unnecessarily.so in this way it shared bandwidth whereas switch sends data to exact that port which required it after learning destination MAC address.so here is a dedicate bandwidth. NAME-Sarfaraz mohammed LOCATION-central
I believe it's a router. I have this question on a test the choices are. router, hub, layer 2 switch or firewall. I answered layer 2 switch. It was wrong.
Routers operate at layer 3 of the OSI model while switches operate at layer 2. The data transmission form of a router is called a packet while in a switch, it is called a frame. Routers are mainly used in wide area networks while switches are used in local area networks.
It is a layer 3 switch
I believe there is no such thing as switching "from layer 3 to layer 2". Switching is either done within layer 3, or within layer 2.