What type of 4-wire connector is used in twisted pair cabling for telephone connections?

What type of 4-wire connector is used in twisted pair cabling for telephone connections?

• A. RJ11
• B. RJ45
• C. RJ25
• D. RJ14

Answer: (A)

This tests recognizing the standard modular connector used for voice on twisted-pair cabling. For telephone connections, the common choice is RJ11. It is a six-position modular plug that typically uses four conductors, which fits the idea of a 4-wire telephone configuration (two lines or two pairs). The other options are specialized for different purposes: RJ45 is eight-conductor and used for Ethernet; RJ14 is a two-line variant but is less common in everyday setups; RJ25 is a rarer, older multi-line type. So RJ11 best fits the typical telephone cabling scenario with four wires.

This tests recognizing the standard modular connector used for voice on twisted-pair cabling. For telephone connections, the common choice is RJ11. It is a six-position modular plug that typically uses four conductors, which fits the idea of a 4-wire telephone configuration (two lines or two pairs). The other options are specialized for different purposes: RJ45 is eight-conductor and used for Ethernet; RJ14 is a two-line variant but is less common in everyday setups; RJ25 is a rarer, older multi-line type. So RJ11 best fits the typical telephone cabling scenario with four wires.