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networking E a
chapter 5
Question | Answer |
---|---|
serial backbone | two or more internetworking devices connected to each other by a single cable |
daisy chain | linked series of devices |
distributed backbone | a number of connectivity devices connected to a series of central connectivity devices |
collapsed backbone | uses as a router or switch as the single central connection point for multiple subnetworks |
parallel backbone | |
circuit switching | a connection is established between two network nodes before they begin transmitting data. |
message switching | establishes a connection between two devices, transfers the information to the second device,and then breaks the connection |
packet switching | breaks data into packets before they are transported |
multiprotocol label switching | enables multiple types of layer 3 protocols to travel over any one of several connection oriented layer 2 protocols. |
bus topology | single cable that connects all nodes on a network without intervening connectivity devices |
ring topology | each node is connected to the two nearest nodes so that the entire network forms a circle |
star topology | every node on the network is connected thru a central device, |
logical topology | refers to the way in which data is transmitted between nodes |
bus logical topology | signals travel from one network device to all other devices on the network |
ring logical topology | signals follow a circular path between sender and receiver |
ring logical toplogy | signals follow a circular path even as they travel thru connecticity devices |
star wired ring topology | uses the physical layout of a star in conjunction with the ring logical topology |
star wired bus topology | a group of workstations are star connected to connectivity devices and then networked via a single bus |
Base means (10Base-T) | indicates that it uses baseband transmission |
T means (10Base-T) | twisted pair |
10 means (10Base-T) | its maximum throughput of 10Mbs |
10Base-T | ethernet standards for copper cable one pair of wires in the UTP cable is used for transmission;a second pair is for reception |
5-4-3 rule | between two communicating nodes,the network cannot contain more than 5 network segments connected by four repeating devices and no more then three of the segments can be populated |
100Base-T IEEE 802.3u | ethernet standards for copper cable upgraded version of 10Base-T uses two of the four pairs of wires to transmit and receive signals known as Fast Ethernet still uses baseband transmission,star topology,RJ45 connectors 100 megabits per second |
1000Base-T IEEE 802.3ab | ethernet standards for copper cable uses all four pairs of wire to transmit and receive signals |
10GBase-T IEEE 802.3an | ethernet standards for copper cable makes very fast data transmission available at a lower cose then fiber optic cable distance limitation |
100Base-FX | ethernet standards for fiber optic cable uses star topology with its repeaters in a bus fashion |
1000Base-LX IEEE 802.3z | ethernet standards for fiber optic cable longer reach then any other 1 gigabit technology available. can use one repeater between segments |
1000Base-SX | ethernet standards for fiber optic cable relies on only one multi mode fiber optic cable,shorter in length, |
10GBase-SR | 10-Gigabit fiber-optic standards |
10GBase-SW | 10-Gigabit fiber-optic standards |
10GBase-LR | 10-Gigabit fiber-optic standards |
10GBase-LW | 10-Gigabit fiber-optic standards |
10GBase-ER | 10-Gigabit fiber-optic standards |
10GBase-EW | 10-Gigabit fiber-optic standards |
10Base-T | maximum transmission speed 10 mbps maximum distance per segment 100 physical media cat 3 or higher UTP |
100Base-T | maximum transmission speed 100 mbps maximum distance per segment 100 physical media cat 5 or higher UTP |
1000Base-T | maximum transmission speed 1000 mbps maximum distance per segment 100 physical media cat 5 or higher UTP (cat5e) |
10GBase-T | maximum transmission speed 10,000 maximum distance per segment 100 physical media cat 6 or 7 |
100Base-FX | maximum transmission speed 100 mbps maximum distance per segment 2000 physical media MMF |
1000Base-LX | maximum transmission speed 1000 mbps maximum distance per segment physical media MMF |
1000Base-SX | maximum transmission speed 1000 maximum distance per segment 500 physical media MMF |
10GBase-SR/SW | maximum transmission speed 10,000 maximum distance per segment 10,000 physical media SMF |
10GBase-ER/EW | maximum transmission speed 10,000 maximum distance per segment 40,000 physical mediaSMF |
Four kinds of ethernet frames | Ehernet_802.2 (Raw) Ethernet_802.3 (Novell) Ethernet_II (DIX) Ethnert_SNAP |