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CCNA 1 and 2 Companion Guide, Revised (Cisco Networking Academy Program) part 102

Cisco Networking Academy Program CCNA 1 and 2 Companion Guide, Revised part 102 is the Cisco approved textbook to use alongside version 3.1 of the Cisco Networking Academy Program CCNA 1 and CCNA 2 web-based courses. The topics covered provide you with the necessary knowledge to begin your preparation for the CCNA certification exam (640-801, or 640-821 and 640-811) and to enter the field of network administration. | B 1102.book Page 979 Tuesday May 20 2003 2 53 PM Appendix B Glossary of Key Terms 1000BASE-LX 1000-Mbps baseband Gigabit Ethernet specification using a long wavelength for a long-haul fiber-optic cable for a maximum length of 10 000 32808.4 ft. . 1000BASE-SX 1000-Mbps baseband Gigabit Ethernet specification using a short laser wavelength on multimode fiber-optic cable for a maximum length of 550m 1804.5 ft. . 1000BASE-T 1000-Mbps baseband Gigabit Ethernet specification using four pairs of Category 5 UTP cable for a maximum length of 100m 328 ft. . 100BASE-FX 100-Mbps baseband Fast Ethernet specification using two strands of multimode fiber-optic cable per link. To guarantee proper signal timing a 100BASE-FX link cannot exceed 400m 1312 ft. in length. It is based on the IEEE 802.3 standard. 100BASE-TX 100-Mbps baseband Fast Ethernet specification using two pairs of either UTP or STP wiring. The first pair of wires is used to receive data the second is used to transmit. To guarantee proper signal timing a 100BASE-TX segment cannot exceed 100m 328 ft. in length. It is based on the IEEE 802.3 standard. 10BASE2 10-Mbps baseband Ethernet specification using 50-ohm thin coaxial cable. 10BASE2 which is part of the IEEE 802.3 specification has a distance limit of 185m 606 ft. per segment. 10BASE5 10-Mbps baseband Ethernet specification using standard thick 50-ohm baseband coaxial cable. 10BASE5 which is part of the IEEE 802.3 baseband physical layer specification has a distance limit of 500m 1640 ft. per segment. 10BASE-T 10-Mbps baseband Ethernet specification using two pairs of twisted-pair cabling Category 3 4 or 5 one pair for transmitting data and the other for receiving data. 10BASE-T which is part of the IEEE 802.3 specification has a distance limit of approximately 100m 328 ft. per segment. 1102.book Page 980 Tuesday May 20 2003 2 53 PM 980 Appendix B Glossary of Key Terms 10-Gb Ethernet Built on the Ethernet technology used in most of today s LANs 10-Gb Ethernet is