I read them from the COMPUTER NETWORKs. but i cannot tell from them.
Do they refer the same thing?
point-to-point links means source and destination module (may be through some intermediate machine)
see from the words, it means one point and another.(Just two point)
So, it seems the same meaning with Unicasting.
What’s the difference?
Unicasting is a transport-layer action that happens over a link.