Which three advantages does fiber optic cabling have over twisted pair cabling? (Choose three.)

Question

Options

• Alower cost
• Bgreater bandwidth
• Cnot susceptible to electromagnetic interference
• Dno restrictions to bend radius
• Edata can be transmitted digitally

• A
  8% (3)
• B
  88% (35)
• D
  5% (2)

Explanation

Fiber optic cables transmit data as pulses of light rather than electrical signals, which gives them three key advantages: they support far greater bandwidth (B) than copper twisted pair, making them ideal for high-speed or long-distance links; they are immune to electromagnetic interference (C) because light is unaffected by nearby electrical equipment or radio signals; and light-based transmission is inherently digital (E) - on/off light pulses map directly to binary data, whereas traditional twisted pair was designed for analog voice signals.

Why A is wrong: Fiber is significantly more expensive than twisted pair - both the cable and the transceivers/connectors cost more, and installation requires specialized technicians.

Why D is wrong: Fiber actually has strict bend radius limits - bending it too sharply causes signal loss or physically snaps the glass core, making it more fragile in this regard than twisted pair.

Memory tip: Think "BIG = Bad for twisted pair" - Bandwidth limitations, Interference vulnerability, and Glass-only digital light are the three areas where twisted pair loses to fiber. Your answers are the opposites of twisted pair's weaknesses: B, C (= I flipped), E (= G flipped).

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