200-301 · Question #974
What is a similarity OM3 and OM4 fiber optical cable?
The correct answer is B. Both have a 50 micron core diameter.. Both OM3 and OM4 fiber optical cables are types of multimode fiber that share a common core diameter of 50 microns. This characteristic allows them to transmit multiple light modes, distinguishing them from single-mode fiber.
Question
Options
- ABoth have a 62.5 micron core diameter.
- BBoth have a 50 micron core diameter.
- CBoth have a 100 micron core diameter.
- DBoth have a 9 micron core diameter.
How the community answered
(48 responses)- A2% (1)
- B90% (43)
- C4% (2)
- D4% (2)
Why each option
Both OM3 and OM4 fiber optical cables are types of multimode fiber that share a common core diameter of 50 microns. This characteristic allows them to transmit multiple light modes, distinguishing them from single-mode fiber.
A 62.5 micron core diameter is characteristic of older multimode fiber types, specifically OM1, not OM3 or OM4.
Both OM3 and OM4 are multimode fiber types designed for high-speed data transmission over moderate distances. A defining characteristic of these multimode fibers is their 50-micron core diameter, which allows multiple light modes to propagate.
A 100 micron core diameter is an older, less common multimode fiber size and not standard for OM3 or OM4.
A 9 micron core diameter is characteristic of single-mode fiber (OS1/OS2), which transmits a single light mode over much longer distances than multimode fiber.
Concept tested: Multimode fiber core diameter (OM3, OM4)
Source: https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/selection_guide_c07-635150.html
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