Copper vs Single-Mode Fiber Cable Characteristics

200-301 By islever Editorial Last updated

Compare physical interface and cabling types

Short answer

Copper: contains a conductor, bedding, and sheathing; typically used in small office applications. Single-mode fiber: ideal over longer distances with little loss of integrity; uses a single wavelength of light.

Question

DRAG DROP
Drag and drop the characteristic from the left onto the cable type on the right.
Exhibit: Copper vs Single-Mode Fiber Cable Characteristics

Key Takeaways

It tests whether you can separate physical construction and office-use traits of copper from the long-haul, single-wavelength properties of single-mode fiber.

This 200-301 drag-drop asks you to distinguish copper cabling from single-mode fiber. The correct mapping places conductor/bedding/sheathing and small-office use with copper, and long-distance, low-loss, single-wavelength transmission with single-mode fiber.

Common mistake: The common error is reversing the columns and giving long-distance or single-wavelength traits to copper while assigning conductor/bedding/sheathing to fiber; that fails because a conductor is metallic copper construction, whereas single-mode fiber carries one light path over long distances.

Expert Analysis

The decision boundary This item is not asking which cable is better; it asks which side of the copper/optical boundary each trait belongs to. Copper is a metallic medium: its construction includes a conductor plus bedding and sheathing, and it is the common small-office, short-reach choice. Single-mode fiber is an optical medium: a very small core carries one light path, so it is used over longer distances with little loss of integrity and is described as using a single wavelength of light.

Applying the traits "Contains a conductor, bedding, and sheathing" is construction language for copper. "Typically used in small office applications" is a deployment statement that fits copper's short-reach role. "Is ideal over longer distances with little loss of integrity" is the classic single-mode fiber advantage, and "uses a single wavelength of light" is the defining single-mode propagation trait, not a copper trait.

Why learners get it reversed Comments on this item warn that the supplied answer is reversed, with copper and fiber characteristics swapped. That happens when someone matches "cable" generically or assumes fiber is the default for all office cabling. The safe test is physical: conductor means copper; one wavelength and long-haul low loss mean single-mode fiber.

Final mapping Copper gets the conductor/bedding/sheathing and small-office traits; single-mode fiber gets the long-distance/low-loss and single-wavelength traits. No traits should cross.

Official Reference

https://learningnetwork.cisco.com/s/ccna-exam-topics

This link opens the official vendor documentation in a new tab.

Exam Strategy

For cabling drag-drops, anchor each characteristic on a physical or operational keyword: conductor or sheathing points to copper construction, small-office use points to short-reach copper, and long distance, low loss or single wavelength points to single-mode fiber. Then verify that no fiber trait remains assigned to copper and no construction trait remains assigned to fiber. If the proposed answer looks reversed, trust the keyword mapping rather than the item order.

Frequently Asked Questions

Which characteristic identifies single-mode fiber in this drag drop?

The use of a single wavelength of light, together with long-distance, low-loss transmission. Those traits belong to single-mode fiber, not copper.

Why does "contains a conductor, bedding, and sheathing" belong to copper?

Copper cabling uses a metallic conductor; bedding and sheathing are part of its physical construction. Single-mode fiber uses a glass core and cladding, so a conductor is the wrong match.

Can "typically used in small office applications" apply to single-mode fiber?

No. That trait describes the common short-reach copper deployment in this item; single-mode fiber is associated with longer distances and lower loss.

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Discussion 9 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 9

  1. bymrdas 👍 22
    contains a conductor, bedding, and sheathing is typically used in small office applications single mode fiber: is ideal over longer distances with little loss of integrity uses a single wavelength of light
  2. GMANscot 👍 4
    This is wrong, flip answers
  3. JSMM 👍 4
    totally opposite
  4. Nmk3216 👍 4
    Swap the answer.
  5. Cisco3900 👍 3
    Both Copper and fiber answers need to be flipped to be correct.
Show 4 more comments
  1. cybercerberes 👍 2
    ERROR in suggested answer, it's reverse.
  2. dimo475 👍 2
    hello!
  3. shaney67 👍 1
    This has been answered back to front
  4. Paolicchio 👍 1
    it is the opposite

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