220-1101 Question 216
Single answerRJ11A technician is setting up a legacy fax machine for a small medical office. The wall jack is labeled for an analog phone line, and the fax machine's port is labeled LINE. The technician has several spare cables in the toolkit, including Ethernet patch cables and telephone cables. Which cable should the technician use to correctly connect the fax machine to the wall jack?
- A
An RJ11 telephone cable
- B
An RJ45 Cat 6 Ethernet patch cable
- C
A USB-B printer cable
- D
A coaxial cable with F-connectors
Show answer and explanation
Correct answer: A
Explanation
This question tests practical recognition of connector types in a common support scenario. RJ11 is the appropriate connector for analog telephone lines and is frequently associated with fax machines, dial-up modems, and telephones. In A+ Core 1, candidates are expected to identify common cable types and match them to real-world devices and interfaces. Best practice is to verify the device port labeling, such as LINE or PHONE, and use the matching telephone cable rather than choosing a connector based only on appearance. RJ45 is for Ethernet networking, USB-B is for peripheral data connections, and coax with F-connectors is used for RF-based services such as cable internet and television.
- A. Correct.
Correct. RJ11 is the standard modular connector commonly used for analog telephone equipment such as fax machines, modems, and traditional landline telephones. In this scenario, the fax machine's LINE port is intended to connect to a telephone wall jack using an RJ11 cable.
- B. Incorrect.
Incorrect. RJ45 is used for Ethernet networking, not for analog telephone line connections to a fax machine. A technician might choose this because RJ45 and RJ11 connectors look somewhat similar, but they are not intended for the same purpose in this scenario.
- C. Incorrect.
Incorrect. A USB-B cable is typically used to connect printers or other peripherals directly to a computer. It does not carry an analog telephone signal and cannot be used between a fax machine's LINE port and a telephone wall jack.
- D. Incorrect.
Incorrect. Coaxial cable with F-connectors is commonly used for cable TV, cable modems, and some broadband installations. It is not used to connect a fax machine to a standard analog phone jack.