COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

WIRED LANS ETHERNET PROTOCOL

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which Gigabit Ethernet standard can support long network segments up to a maximum of 5 km when used with single-mode fiber optic cable?

A	1000BaseSX
B	1000BaseCX
C	1000BaseLX
D	1000BaseT

Explanation:

Detailed explanation-1: -Which Gigabit Ethernet standard can support long network segments up to a maximum of 5 km when used with single-mode fiber optic cable? 1000BaseLX supports segment lengths of up to 5 km when used with single-mode fiber optic cable.

Detailed explanation-2: -Half-duplex SM fiber connections can reach a maximum segment length of 316m. Full-duplex SM fiber connections can reach a maximum segment length of 5000m.

Detailed explanation-3: -1000BASE-LX is a gigabit Ethernet standard over fiber optic. It is for operating on single mode fiber (SMF) or multimode fiber (MMF), with a long wavelength of 1270 to 1355 nanometers (typically 1310nm). The “LX” stands for long reach. 1000BASE-LX supports 10km over single mode fiber.

Detailed explanation-4: -1000Base-SX (IEEE 802.3z) The implementation of Gigabit Ethernet running over multimode fiber-optic cable (instead of copper twisted-pair cable) and using short wavelength laser.

There is 1 question to complete.