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單項選擇題

Which protocol provides a method of sharing VLAN configuration information between switches?（）

A.VTP
B.STP
C.ISL
D.802.1Q
E.VLSM

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多項選擇題

Which of the following are types of flow control? (Choose three.)（）

A.buffering
B.cut-through
C.windowing
D.congestion avoidance
E.load balancing

單項選擇題

Acknowledgements, 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

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