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Difficulty: MediumNetwork Cable Types and Connectors

Match each network connector type to its corresponding deployment specification or primary hardware application.

  • F-type connectorScrews onto coaxial cabling to connect broadband cable modems.
  • ST connectorUses a twist-lock bayonet coupling mechanism for fiber optic cabling.
  • DB9 connectorAssembles a 9-pin serial connection for administrative console port management.
  • RJ45 connectorTerminates four-pair twisted-pair copper cables for standard Ethernet connections.

Answer

Each connector matches its distinct physical design and functional use: F-type pairs with threaded coaxial broadband; ST pairs with twist-lock bayonet fiber optics; DB9 pairs with 9-pin serial console administration; RJ45 pairs with 8-pin Ethernet twisted-pair networking.
The F-type connector is a threaded coaxial connector suited for RG-6 broadband internet service. The ST connector is a straight-tip fiber connector featuring a twist-lock bayonet mechanism. The DB9 connector is a 9-pin D-subminiature connector used for serial communication and direct console configuration of modern or legacy network appliances. The RJ45 connector is an 8P8C modular connector standard for twisted-pair Ethernet networks.

Step-by-Step Solution

1
Identify the media type and physical form factor for each listed connector.
Recognize F-type as threaded coaxial, ST as bayonet fiber optic, DB9 as 9-pin serial, and RJ45 as 8-pin Ethernet twisted pair.
Distinguishing connector physical traits is fundamental for matching them to their corresponding cabling standards.
2
Associate each connector type with its primary practical scenario.
Threaded F-type matches broadband cable modems; bayonet ST matches fiber optic distribution; DB9 matches serial management console ports; RJ45 matches standard copper LAN infrastructure.
CompTIA A+ Core 1 requires technicians to pair physical cable terminations accurately with target system interfaces.

Key Concept

Network Cable Connectors and Applications
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Topics

Network Cable Types and Connectors

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