CiscoDCCCNA3

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Glossary 10BASE-2 An older 10-Mbps baseband Ethernet standard that uses a relatively thin coaxial cable that runs to each device, without the need for a networking device. Also known as thinnet. 10BASE-5 An older 10-Mbps baseband Ethernet standard that uses a relatively thick coaxial cable that runs to each device, without the need for a networking device. Also known as thicknet. 10BASE-T The 10-Mbps baseband Ethernet specification using two pairs of twistedpair cabling (Categories 3, 4, or 5): One pair transmits data and the other receives data. 10BASE-T, which is part of the IEEE 802.3 specification, has a distance limit of approximately 100 m (328 feet) per segment. 100BASE-T A name for the IEEE Fast Ethernet standard that uses two-pair copper cabling, a speed of 100 Mbps, and a maximum cable length of 100 meters. 1000BASE-T A name for the IEEE Gigabit Ethernet standard that uses four-pair copper cabling, a speed of 1000 Mbps (1 Gbps), and a maximum cable length of 100 meters. 802.2 The IEEE standard for the portion of the Data Link layer feature in common across LANs, known more commonly as Logical Link Control (LLC). 802.3 The IEEE standard for Ethernet. 802.4 The IEEE standard for Token Bus. 802.5 The IEEE standard for Token Ring. 802.1Q The IEEE standardized protocol for VLAN trunking. 802.11a The IEEE standard for wireless LANs using the U-NII spectrum, OFDM encoding, at speeds of up to 54 Mbps. 802.11b The IEEE standard for wireless LANs using the ISM spectrum, DSSS encoding, and speeds of up to 11 Mbps. 802.11g The IEEE standard for wireless LANs using the ISM spectrum, OFDM or DSSS encoding, and speeds of up to 54 Mbps. 802.11n The IEEE standard for wireless LANs using the ISM spectrum, OFDM encoding, and multiple antennas for singlestream speeds up to 150 Mbps. 802.11w The IEEE standard that defines the changes necessary to the operation of a MAC Bridge in order to provide rapid reconfiguration capability for STP. 802.1AB The IEEE standard for Link Layer Discovery Protocol, which is formally referred to as Station and Media Access Control Connectivity Discovery Protocol. It is a vendor-neutral 1


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