2020 57 net work fast Ethernet under 100 base - the transmission medium for T4 (),
A. 3 UTP b. 5 class UTP c. shaft cable
fiber optic d.The answer is A
Analytic:
The transmission medium for 100 base - T4 three, four, five kinds of UTP
This problem is not particularly serious, the previous questions, to answer is 3 class UTP

But I'm in baidu to check is:
100 base - T4: cable type: four to three, four, five kind of unshielded twisted pair or shielded twisted-pair cable. Wire number: 4 pairs; The net length: 100 m
Is not only support the UTP also supports the STP,
So I feel this resolution is not rigorous,,,