Tools used to attach connectors to cables.

• A. SFP
• B. Cable testers
• C. Peripheral devices
• D. Crimpers

Answer: (D)

Crimpers are the tools used to attach connectors to cables. They compress and deform the connector’s crimp metal so it grips the stripped conductors securely, creating a solid electrical contact and a controlled mechanical bond that provides strain relief. This is how copper cables get terminated with modular plugs like RJ-45 (and similar) connectors, ensuring a reliable connection.

Other options aren’t termination tools: SFPs are transceiver modules, not tools to attach connectors; cable testers check for proper wiring after termination; peripheral devices are external devices connected to a computer, not tools for attaching connectors.