单项选择题
A. Logical units are similar to VLANs used by other vendors.
B. A logical unit is required for transit interfaces.
C. Frame Relay encapsulation supports one logical unit.
D. Link speed and duplex are configured in the logical unit properties.
单项选择题 Administrators report that they are unable to access the management interface of the EX Series device shown in the exhibit.Which command will resolve this problem?（）
单项选择题 Which command is used to restore a Junos device to its default state?（）
单项选择题 Which interface type connects the control and forwarding planes on an MX Series device?（）