What is the function of the OSI models physical layer (Layer 1)?
Give some examples of physical layer implementations. The physical layer defines the physical medium. It defines the media type, the connector type, and the signaling type (baseband versus broadband). This includes voltage levels, physical data rates, and maximum cable lengths. The physical layer is responsible for converting frames into electronic bits of data, which are then sent or received across the physical medium. Twisted pair, coaxial cable, and fiber-optic cable operate at this level. Other implementations at this layer are repeaters/hubs, RJ-45. The Ethernet and IEEE 802.3 standards define what three physical wiring standards that operate at 10 Mbps? These physical wiring standards operate at 10 Mbps: • 10Base2 • 10Base5 • 10BaseT What are collision domains? In Ethernet segments, devices connect to the same physical medium. Because of this, all devices receive all signals sent across the wire. If two devices send a packet at the same time, a collision occurs. In the event of
