A user needs to connect a laptop to an Ethernet port in the room. Which of the following types of connections does the user need?

RG6 is a type of coaxial cable commonly used for cable television and satellite signals, not for Ethernet networking.

DB9 (D-subminiature, 9-pin) connectors are typically used for serial ports, often found on older computers or specialized networking equipment for console access, not for standard Ethernet connections.

RJ11 is a smaller four- or six-position, two- or four-conductor (4P2C or 6P4C) connector commonly used for telephone lines, not for Ethernet networking.

The RJ45 connector is the standard eight-position, eight-conductor (8P8C) modular connector used for Ethernet networking. It is universally used with twisted-pair cables (like Cat5e or Cat6) to connect devices such as laptops, desktop computers, printers, and network switches to an Ethernet network port.