4.1.1 Ethernet/802.3 LAN development
4.1.2 Factors that impact network performance
4.1.3 Elements of Ethernet/802.3 networks
4.1.4 Half-duplex networks
4.1.5 Network congestion
4.1.6 Network latency
4.1.7 Ethernet 10BASE-T transmission time
4.1.8 The benefits of using repeaters
4.1.9 Full-duplex transmitting

4.2.1 LAN segmentation
4.2.2 LAN segmentation with bridges
4.2.3 LAN segmentation with routers
4.2.4 LAN segmentation with switches
4.2.5 Basic operations of a switch
4.2.6 Ethernet switch latency
4.2.7 Layer 2 and Layer 3 switching
4.2.8 Symmetric and asymmetric switching
4.2.9 Memory buffering
4.2.10 Two switching methods

4.3.1 Functions of Ethernet switches
4.3.2 Frame transmission modes
4.3.3 How switches and bridges learn addresses
4.3.4 How switches and bridges filter frames
4.3.5 LAN segmentation using bridging
4.3.6 Microsegmentation
4.3.7 Microsegmentation implementation
4.3.8 Switches and collision domains
4.3.9 Switches and broadcast domains
4.3.10 Communications between switches and workstations