CompTIA A+ Core 1 (220-1201)NetworkingEasy
A technician is terminating a newly run Ethernet cable at a wall jack and must crimp the correct connector onto the end for a standard wired network drop. Which connector should the technician use?
- ARJ45
- BF-connector
- CRJ11
- DBNC
Show answer & explanationAnswer & explanation
Correct answer: A. RJ45
RJ45 is the standard 8-position, 8-contact connector used for Ethernet (twisted-pair) network cabling. RJ11 is for telephone lines, F-connectors are for coax, and BNC is used with older coax networking or video.
Why the other options are wrong
- B. F-connectors thread onto coaxial cable, used for cable internet/TV.
- C. RJ11 is a smaller 4/6-pin connector used for telephone lines.
- D. BNC connectors are twist-lock coax connectors, not used for twisted-pair Ethernet.
RJ45 Connector
An 8-position, 8-contact (8P8C) modular connector used to terminate twisted-pair Ethernet cabling.
- Used for Cat5e/6/6a Ethernet cabling
- Larger than RJ11 phone connectors
- Terminated using a crimping tool onto the cable's 8 conductors
Memory trick: RJ45 = 4+5=9... no, remember '8 wires, 8 pins, 45 for Ethernet fun'.