试题详情
- 单项选择题Which statement is correct about logical units on Juniper Router interfaces?（）
A、Logical units are used only when a Layer 2 identifier is present such as a VLAN
B、A logical unit of 0 is required when using a frame-relay DLCI
C、A logical unit is always required
D、Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.
- C
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