In case of fiber-optic cables, which transmission mode is used for transmitting data over long distances?
In fiber-optic communication, a single-mode optical fiber (SMF) is an optical fiber designed to carry light only directly down the fiber - the transverse mode. These modes define the way the wave travels through space, i.e. how the wave is distributed in space.
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the United States
Ubuntu is the most popular Linux distribution, developed by Canonical Software owned by Mark Shuttleworth. What else is Mark famous for?
being a movie star
being an Olympic games attendant
being an astronaut
owning a submarine
What material is computer's processor made of?
single crystal ruby
single crystal silicon
What type of printers are typically used in cash registers?
Thermal transfer printer