题目内容

额定电压为220/110V的单相变压器，高压边漏阻抗x1=0.3Ω，折合到付边后大小为（）。

A. 0.3Ω
B. 0.6Ω
C. 0.15Ω
D. 0.075Ω

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Which three statements are typical characteristics of VLAN arrangements?（）

A new switch has no VLANs configured.
B. Connectivity between VLANs requires a Layer 3 device.
C. VLANs typically decrease the number of collision domains.
D. Each VLAN uses a separate address space.
E. A switch maintains a separate bridging table for each VLA
F. VLANs cannot span multiple switches.

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