RJ-45 is a port that looks like a large phone jack and is used by twisted-pair cable to connect to a wired network adapter or other hardware device. RJ stands for registered jack.

RJ-45 is a port that looks like a large phone jack and is used by twisted-pair cable to connect to a wired network adapter or other hardware device. RJ stands for registered jack.

• A. A port used by fiber optic cables to connect devices
• B. A port that looks like a large phone jack and is used by twisted-pair cable to connect to a wired network adapter or other hardware device
• C. A wireless networking standard
• D. An IP addressing scheme

Answer: (B)

RJ-45 is a modular connector used with twisted-pair Ethernet cables, such as CAT5/6. It resembles a larger phone jack and is the standard way to connect a wired network adapter or other networked device to a wired network. This description matches the given scenario precisely. The other options describe fiber optic connections, wireless networking, or IP addressing, none of which involve the physical RJ-45 connector.

RJ-45 is a modular connector used with twisted-pair Ethernet cables, such as CAT5/6. It resembles a larger phone jack and is the standard way to connect a wired network adapter or other networked device to a wired network. This description matches the given scenario precisely. The other options describe fiber optic connections, wireless networking, or IP addressing, none of which involve the physical RJ-45 connector.