A:AnswerBoth Thunderbolt 3 ports support 4K display output, a dock is not required. More information can be found here. https://www.asus.com/us/Laptops/ASUS-ZenBook-13-UX325JA/
A:AnswerThis model does not have an ethernet port. A USB to ethernet adapter is recommended for an ethernet connection. https://www.asus.com/us/Laptops/ASUS-ZenBook-13-UX325JA/Tech-Specs/