Which statement is true about logical units?
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A. B. C. D.B
Logical units are a fundamental concept in Juniper Networks' Junos operating system, used to partition a physical interface into multiple logical interfaces. The correct statement about logical units is:
D. Link speed and duplex are configured in the logical unit properties.
Explanation:
A logical unit, also known as a logical interface, is a virtual interface that is created by dividing a physical interface into multiple logical parts. Logical units allow network administrators to configure multiple logical interfaces on a single physical interface, which can help to conserve physical interface resources.
Logical units are not similar to VLANs used by other vendors, as VLANs are a different type of virtual interface that is used to segment a single physical network into multiple logical networks.
A logical unit is not required for transit interfaces, as transit interfaces are used to forward traffic between different network segments and do not require the creation of virtual interfaces.
Frame Relay encapsulation does support multiple logical units, rather than just one.
However, it is true that the link speed and duplex settings are configured on the logical unit level in Junos. This means that you can configure different link speed and duplex settings for each logical unit on a physical interface. This allows you to optimize the performance of each logical interface based on its specific requirements.
In summary, the correct statement about logical units is that link speed and duplex are configured in the logical unit properties.