A connector that supports two pairs of wires (four total) and is typically used in telephones?

A connector that supports two pairs of wires (four total) and is typically used in telephones?

• A. RJ11
• B. RJ45
• C. USB-C
• D. HDMI

Answer: (A)

The main idea is recognizing which connector is designed to carry multiple wires for telephone service. RJ11 is the small, modular jack commonly used for landline phones and is built to carry four conductors, which are two pairs of wires. That arrangement fits typical phone lines and some modem connections, making it the standard choice for telephone-related wiring. In contrast, the other options are designed for different用途: RJ45 is the eight-wire Ethernet plug, USB-C handles USB data and power with a different purpose, and HDMI carries video and audio signals.

The main idea is recognizing which connector is designed to carry multiple wires for telephone service. RJ11 is the small, modular jack commonly used for landline phones and is built to carry four conductors, which are two pairs of wires. That arrangement fits typical phone lines and some modem connections, making it the standard choice for telephone-related wiring.

In contrast, the other options are designed for different用途: RJ45 is the eight-wire Ethernet plug, USB-C handles USB data and power with a different purpose, and HDMI carries video and audio signals.