220-801 · Question #354
Which of the following cable types is characterized by an insulated core wire covered with a braided shield?
The correct answer is D. RG-59. RG-59 is a coaxial cable constructed with a single insulated central conductor surrounded by a braided metallic shield, which matches the description in the question.
Question
Which of the following cable types is characterized by an insulated core wire covered with a braided shield?
Options
- ASTP
- BCAT3
- CUTP
- DRG-59
How the community answered
(19 responses)- C5% (1)
- D95% (18)
Why each option
RG-59 is a coaxial cable constructed with a single insulated central conductor surrounded by a braided metallic shield, which matches the description in the question.
STP (Shielded Twisted Pair) contains multiple twisted wire pairs with a foil or braided shield, not a single insulated core wire, making it structurally different from what is described.
CAT3 is a form of UTP (Unshielded Twisted Pair) cable and contains no braided shield at all, only multiple twisted pairs inside a jacket.
UTP (Unshielded Twisted Pair) has no shielding of any kind - no foil and no braided shield - so it cannot match the description of a braided-shield cable.
RG-59 is a coaxial cable consisting of a solid or stranded inner conductor, a dielectric insulator, a braided copper shield layer, and an outer plastic jacket. This construction - insulated core wire wrapped in a braided shield - is the defining physical characteristic of coaxial cables and matches the question exactly.
Concept tested: Coaxial cable physical construction and identification
Source: https://www.comptia.org/certifications/a
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