5/8 inch is the bare minimum. You can fit a terminated cable through a board with a hole that size.
To actually get through a wall, 7/8 inch is more like it. 5/8 does not leave enough room to get anything to pull the cable with attached without jamming, and walls are generally too thick to just push through.
Yes, that's a huge hole. Suffice to say that a ...
Don't use a terminated Ethernet cable.
Just don't. It never works in the long-term.
Run an unterminated Ethernet cable. Install a jack on each end. Use standard patch cables to get from the camera to one jack and on the other end to get from the other jack to the switch or router.
The hole you need will be on the order of 6mm - 8mm, or ~ 1/4" to 1/3&...
Key is to make sure that each of those cables is a straight run to one location. If so, at the far end of each, install a single CAT 5e jack (small chance you already have an 8-pin jack, but more likely a 2 or 4 pin phone jack) and wall plate. At this location, install a small patch panel like this random example:
and patch each of the active ports to a ...
You would need to terminate all 4 pairs onto Cat5e jacks on both ends, or a small patch panel (but given it's only 4 cables, 4 jacks in a surface mount box would be more appropriate scale) and then patch the central location into a switch connected to your internet router.
If your fiber modem or your wifi router have extra LAN ports, you may not need a ...
As commented, we mostly don't.
As for what you are trying to do, flip the connector with respect to the cable, (or the cable with respect to the connector, makes no difference) and you'll find it's just as easy as the first one.
The data sheet for this product is extremely underwhelming but a common problem with "making your own patch cables" is ...
So I think it actually IS an Ethernet cable.
Looking farther into the hole on the cable markings, I see "ETL VERIFIED TO TIA/EIA 568B."
However, I think I don't know where the cable comes out on the other side. The ones in the "structural panel" that are yellow are all rated CM and this one is CMR, so I don't think it is the same cable.