Which two statements about fiber cable are true? (Choose two)

Question:
Which two statements about fiber cable are true? (Choose two)

• Single-mode fiber supports SC and LC connectors only
• Single-mode cable is most appropriate for installations longer 10 km
• Fiber cable is relatively inexpensive and supports a higher data rate than coaxial cable
• Multimode cable supports speeds between 100 Mbps and 100 Gbps
• Multimode cable supports speeds between 100 Mbps and 9.92 Gbps

Explanation: Single-mode fiber allows only one mode of light to propagate. Because of this, the number of light reflections created as the light passes through the core decreases, lowering attenuation and creating the ability for the signal to travel further. This application is typically used in long distance, higher bandwidth.

Because of the high dispersion and attenuation rate with multimode fiber cable, the quality of the signal is reduced over long distances.

Reference: https://www.multicominc.com/training/technical-resources/single-mode-vs-multi-mode-fiber-optic-cable/

In fact it is difficult to say what the maximum distance of single-mode or multimode fiber but according to this link (table 1):

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/gigabit-ethernet-gbic-sfp-modules/product_data_sheet0900aecd8033f885.html

Single-mode cable is good for installations longer than 10km.

At present, there are four kinds of multi-mode fibers: OM1, OM2, OM3 and OM4. The letters “OM” stand for optical multi-mode. OM3 and OM4 fibers will support upcoming 40 and 100 Gb/s speeds.

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