You're creating a network for an office. You need to connect two office buildings that are approximately 900 meters apart. You have been asked to provide a fast network backbone. Which of the following types of cable will you choose to connect those buildings?
A) STP
B) MMF
C) SMF
D) UTP
C) SMF
Light travels through single-mode fiber-optic cable using only a single mode, meaning that it travels straight down the fiber and does not bounce off the cable walls. It can transmit up to 10Gbps for up to 40 kilometers (25.85 miles), depending on the standard used.
In multimode fiber (MMF) cable, the light bounces off the cable walls as it travels through the cable, which causes the signal to weaken more quickly. It can transmit up to 10Gbps for up to 550 meters (1,804 feet, or just over one-third of a mile), depending on the standard used.
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