Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?（）
- A Layer 2
- B Layer 3
- C Layer 4
- D Layer 5
- E Layer 6
- F Layer 7
问题
Acknowldgement, Sequencing, and Flow c
参考解析：
分类：CCNA(640-802)题库
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