ccna 200 301 booksmart showtimes 54016

ccna 200 301 booksmart showtimes 54016.When designing your LAN, it is critical to properly understand the various types of Ethernet media you can use. Imagine this kind of network: Gigabit Ethernet for desktop devices and 10Gbit/s Ethernet between switches, great, right? But you also have to think about the cost of building such a network. If you mix and match the various types of Ethernet media access, you can build out a very cost-effective network.The EIA/TIA (also known as the Electronic Industries Alliance and later the Telecommunications Industry Alliance) is the body that defines the physical layer for Ethernet. The EIA/TIA defines Ethernet as using RJ connectors (crystal heads) and UTP cable (unshielded twisted pair), also known as RJ45 cable. However, this refers only to the 8-pin modular connector.Each Ethernet cable type as defined by EIA/TIA suffers from attenuation, which means that the signal strength, measured in decibels (dB), is diminished after a certain length of cable has been transmitted. Cables used in the enterprise and home markets are categorized based on measurements. The higher the number of high quality cables, the less attenuation. For example, Category 5 cable is better than Category 3 cable because it has more metal wires per foot of Category 5 cable, so there is less crosstalk. Crosstalk is unwanted signal interference coming from both ends of the cable.The two below are the original IEEE802.3 standards.10Base2 has a transmission rate of 10Mbit/s, uses baseband transmission technology, and has a maximum distance of 185 meters; uses thin coaxial cable, also known as thin cable CTHINnet), and can support up to 30 workstations in a network segment; consists of BNC connectors and thin coaxial cable, and uses a bus topology both physically and logically. The 10 in this designation means 10Mbit/s, Base means baseband technology (digital signaling transmission method for communication in the network), and 2 means about 200 meters. The 10Base2 Ethernet card is connected to the network via BNC1 (British Navy connector, NeilConsterman bayonet and snap-fit type connector) connectors, T-connectors, and terminators.The 10Base5 transmission rate is 10Mbit/s, using baseband transmission technology, with a maximum distance of 500m, using thick coaxial cable, also known as Thicknet; using AUI connectors and both physically and logically using a bus topology. The maximum transmission distance is 2,500 meters using an amplifier and can support 1024 users in all network segments.lOBaseT transmission rate of 10 Mbit/s, using Category 3 UTP (unshielded twisted pair) cable, with a maximum transmission distance of 100 meters. Unlike networks using 10Base2 and 10Base5, each device using lOBaseT must be connected to a hub or switch, and only one host can be connected to each section or cable. Using RJ45 connectors (8-pin modular connectors), a star topology is used physically and a bus topology is used logically.Each 802.3 standard defines an AUL which defines the medium access method, which is the transmission of data from the data link layer to the physical layer one bit at a time. This allows the physical layer to support existing and newly developed technologies while keeping the MAC address unchanged. The earliest AUI interfaces were 15-pin connectors, which allowed the transceiver (transmitter/receiver) to provide a 15-pin to twisted pair conversion.But there was a problem here, the AUI interface could not support 1 OOMbit/s Ethernet because high frequencies would be used. Therefore 1OOBastT needs a new interface, and the 802.3U definition creates an interface standard called MH (Medium Independent Interface) that can provide 1OOMbit/s throughput. MII uses half-byte units, and a half-byte is 4 bits. Gigabit Ethernet uses GMII (Medium Independent Gigabit Interface), which transmits 8 bits of data at a time. 802.3U (Fast Ethernet) is compatible with 802.3 Ethernet because they have the same physical characteristics. Fast Ethernet and Ethernet use the same MTU (maximum transmission unit) and the same MAC mechanism, and they also retain the frame format used by lOBaseT Ethernet. Essentially, Fast Ethernet only extends the IEEE 802.3 definition somewhat, and because of this, Fast Ethernet can provide 10 times the transfer rate of lOBaseT.There are also a number of IEEE Ethernet 802.3 extension standards that start with Fast Ethernet.