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CompTIA

N10-005 · Question #791

Which of the following connectors is used for coaxial copper cable?

The correct answer is A. BNC. BNC (Bayonet Neill-Concelman) connectors are the standard connector type used to terminate coaxial copper cable in networking and video applications.

Network implementation

Question

Which of the following connectors is used for coaxial copper cable?

Options

  • ABNC
  • BDB-9
  • CRJ-11
  • DST

How the community answered

(51 responses)
  • A
    92% (47)
  • B
    2% (1)
  • C
    4% (2)
  • D
    2% (1)

Why each option

BNC (Bayonet Neill-Concelman) connectors are the standard connector type used to terminate coaxial copper cable in networking and video applications.

ABNCCorrect

The BNC connector is specifically designed for coaxial cable, using a bayonet-style locking mechanism that secures the connector with a quarter-turn twist. It was widely used in 10Base2 (Thinnet) Ethernet networks and is still used in video and RF applications today. Its design accommodates the single center conductor and surrounding shield that characterize coaxial cable.

BDB-9

DB-9 is a D-sub serial connector used for RS-232 serial communications, not for coaxial copper cable.

CRJ-11

RJ-11 is a modular connector used with twisted-pair telephone wiring, not coaxial cable.

DST

ST (Straight Tip) is a fiber optic connector and is not compatible with or used for copper coaxial cable.

Concept tested: Coaxial cable connector identification

Source: https://www.comptia.org/certifications/network

Topics

#BNC connector#coaxial cable#physical media#copper cabling

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