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Difficulty: EasyPhysical Interface and Cabling Types

Match each physical cabling or transceiver type to its corresponding physical characteristic.

  • Single-Mode Fiber (SMF)Uses a narrow core (approx. 9 microns) to transmit a single light ray over long distances.
  • Multimode Fiber (MMF)Uses a wider core (50 or 62.5 microns) allowing multiple light modes, best for shorter campus runs.
  • Unshielded Twisted-Pair (UTP)Uses copper wire pairs twisted together to minimize crosstalk up to a maximum distance of 100 meters.
  • SFP+ TransceiverHot-swappable form-factor interface module designed to support 10 Gigabit Ethernet speeds.

Answer

Single-Mode Fiber (SMF) matches with narrow core (~9 microns) for long distances; Multimode Fiber (MMF) matches with wider core (50/62.5 microns) for shorter distances; Unshielded Twisted-Pair (UTP) matches with twisted copper wire pairs up to 100 meters; SFP+ Transceiver matches with hot-swappable module supporting 10 Gbps.
Each physical interface and cabling type directly corresponds to its fundamental engineering characteristic: Single-mode fiber has a ~9-micron core for laser transmission over long distances; Multimode fiber has a 50/62.5-micron core for transmission over shorter distances; UTP relies on twisted copper pairs up to 100 meters; SFP+ is the standard modular transceiver form factor for 10 Gbps interfaces.

Step-by-Step Solution

1
Identify the optical core specifications for fiber media.
Single-mode fiber has a small 9-micron core for single light paths, whereas multimode fiber has a larger core (50 or 62.5 microns) allowing multiple light paths.
Core size directly determines the light propagation modes and distance capabilities of optical fiber.
2
Identify the characteristics of copper media standards.
Unshielded Twisted-Pair uses balanced twisted copper conductors to resist crosstalk up to the 100-meter limit.
Twisting wire pairs creates balanced differential signals that cancel external electrical interference.
3
Identify the transceiver form factor and speed standard.
SFP+ is an enhanced version of SFP designed specifically for 10 Gigabit Ethernet data rates.
Different modular transceiver form factors correspond to specific maximum throughput capabilities.

Key Concept

Physical interface types, fiber optics core sizes, UTP cabling specifications, and transceiver form factors.
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Physical Interface and Cabling Types

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