I need to run one Ethernet cable through about 15 feet of drop ceiling which will plug into a LAN port on a router into a port on a switch. Can I just run a Cat 6 cable through that drop ceiling?

I just purchased a new (20 year old) house and will be moving in soon. We are planning on renovating quite a bit, so I want to take advantage of that and run a bunch of CAT, speaker and RG6 cable. It ...