| A | B |
|---|
| break up collision domains | Routers, Layer-2 Switches, Bridges |
| break up broadcast domains | Routers |
| Routers, by default, [will / won't] forward any broadcast or multicast packets | Will not |
| Routers use the ___ in a Network layer header to determine the next hop rouer to forward the packet to. | Logical Address |
| Used to control security on the types of packets allowed to enter or exit an router interface. | Access Lists |
| Accomplished using routers, switches, and bridges | Network Segmentation |
| The breakup of a large network into smaller ones due to LAN traffic congestion. | Network Segmentation |
| Too many hosts in a broadcast domain | Reason for LAN Traffic Congestion |
| Broadcast storms | Reason for LAN Traffic Congestion |
| Multicasting | Reason for LAN Traffic Congestion |
| Low bandwidth | Reason for LAN Traffic Congestion |
| Connect networks together | Routers |
| Route data packets from one network to another | Routers |
| The set of all devices on a network segment that hear all broadcasts sent on that segment. | Broadcast Domain |
| Used to create internetworks | Routers |
| Used to add functionality to an internetwork LAN, mainly to optimize performance by providing more BW for the LAN's users | Switches |
| Transfer frames from one port to another | Switches |
| Create multiple, separate collision domains, but a single broadcast domain. | Switches, Bridges |
| Create one collision domain and multiple broadcast domains. | Routers |
| Does not break up collision domains or broadcast domains. | Hub |
| Concerned about the location of networks (not hosts) and the best way to reach them. | Routers |
| Defines how packets are placed onto Ethernet media. | Media Access Control (MAC) 802.3 |
| IEEE Ethernet Data Link sublayers | Logical Link Control (LLC) 802.2, Media Access Control (MAC) 802.3 |
| Identifies the Network Layer protocol within a packet, then encapsulates it. | Logical Link Control (LLC) 802.2 |
| The time measured from when a frame enters a port to the time it exits a port. | Latency |
| "Hardware-based Bridging" | Layer-2 Switching |
| Specialized hardware used for Layer-2 switching that runs up to gigabit speeds with very low latency rates. | Application-Specific Integrated Circuit (ASIC) |
| Concerned about the location of local devices. | Layer-2 Devices: Switches, Bridges |
| Use routing tables that map the internetwork. | Routers |
| Use filter tables that map individual devices. | Layer-2 Devices: Switches, Bridges |
| A Layer-2 device will only forward frames to the segment where the destination hardware address is located. | Transparent Bridging |
| Each device on every segment plugged into a ___ can transmit simultaneously. | Switch |
| Only one device at a time out of all segments plugged into a ___ may communicate. | Hub |
| Multiple-port repeater for LAN segments. | Hub |
