Yes, the whole point of using client side certificates is to enable you to reliably uniquely identify each client.
AWS will provide APIs to provision each device with it's own cert/key.
The other reason is that it means that you can easily ban a single device if the certificate is compromised, if every device reuses the same certificate then you have to ...
This isn't really a IoT question, it's more a general networking question.
But yes, if you control the LAN then you can do nearly anything but the starting points would be:
DNS overriding so a hostname points to a local address
DNAT to intercept packets to a specific IP address and remap it to a local address
Both of these do rely on the system not using ...
The article is not about an Internet connection, but about a point-to-point link to a probe on the moon.
They achieved a speed of 622 Mbit/s, which is the speed achieved in an STM-4 SDH link, something that existed 20 years ago here on Earth.
Back then, it was something you would see mostly on ISP backbones, but nowadays you’ll see FTTH (fibre to the home) ...