Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

Straight-through cables are the most common type of Ethernet cable. They're used to connect

dissimilar devices, such as a laptop to a router or a switch to a router. The internal wiring of the cable

connects the transmit pins on one end to the receive pins on the other end, and vice versa.

Crossover cables were historically necessary to connect similar devices (e.g., router to router, or

switch to switch). Modern devices often have auto MDI-X capabilities, allowing them to

automatically detect and adjust to straight-through or crossover connections as needed.

Rollover cables have a reversed pinout and are primarily used for console access into Cisco routers

and switches.

Fiber cables use fiber optic technology for high-speed, long-distance connectivity.

Reference:

Cisco Networking Academy: Introduction to Networks Course