220-1101 Question 218
Single answerF-typeA technician is setting up a cable modem for a small office. The ISP's coaxial cable has already been run to the equipment rack, but the modem cannot be connected because the cable end does not have the correct termination installed. Which connector should the technician attach to the coaxial cable to connect it properly to the modem?
- A
F-type connector
- B
RJ-45 connector
- C
BNC connector
- D
LC connector
Show answer and explanation
Correct answer: A
Explanation
The correct answer is F-type connector. In real-world A+ Core 1 scenarios, technicians are expected to identify common connector types by use case. F-type connectors are specifically associated with coaxial cable used for cable television and cable internet service, including connections to cable modems. By contrast, RJ-45 is used for Ethernet over twisted-pair cabling, BNC is a different coaxial connector not typically used for cable modem hookups, and LC is used for fiber-optic connections. This aligns with standard hardware and networking identification objectives commonly covered in CompTIA A+ Core 1, especially connector and cable type recognition for practical installations and troubleshooting.
- A. Correct.
Correct. An F-type connector is the standard connector used with coaxial cabling for cable TV, cable internet, and cable modems. In an A+ Core 1 context, technicians should recognize F-type as the common coax connector used in residential and small-office broadband installations.
- B. Incorrect.
Incorrect. RJ-45 is an 8P8C modular connector used for twisted-pair Ethernet networking, not for terminating coaxial cable going into a cable modem from the ISP. A technician might choose this option because the modem also has an Ethernet port for connecting to a router or PC, but that is a separate connection.
- C. Incorrect.
Incorrect. BNC is also a coaxial connector, which makes it a plausible distractor, but it is more commonly associated with older networking, test equipment, and some video applications. Cable modems and modern cable internet installations typically use F-type connectors rather than BNC.
- D. Incorrect.
Incorrect. LC is a small-form-factor fiber-optic connector used with fiber cabling, not coaxial cable. Someone might select this if confusing broadband media types, but cable modem service delivered over coax does not use LC connectors at the modem's coax input.