单选题After testing a new 100BaseTX cable, the technician determines that only pairs 4, 5, 7, and 8 are straight-thru wires. Which of the following MOST likely describes this cable type?（）A
Crossover cable with open pairsB
Crossover cableC
Rollover cableD
St
题目
单选题
After testing a new 100BaseTX cable, the technician determines that only pairs 4, 5, 7, and 8 are straight-thru wires. Which of the following MOST likely describes this cable type?（）
A
Crossover cable with open pairs
D
Straight-thru cable with open pairs
