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JN0-281 · Question #31

Referring to the exhibit, which behavior does this configuration enable on the ge-0/0/1.0 interface?

The correct answer is A. This configuration enables a MAC address learned on the interface to be persistently retained in. The configuration in the exhibit shows the persistent-learning feature enabled on interface ge- Persistent Learning: Persistent-learning ensures that the MAC addresses learned on the interface are retained in the Ethernet-switching table, even after a device reboot. This…

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Question

Referring to the exhibit, which behavior does this configuration enable on the ge-0/0/1.0 interface?

Exhibit

JN0-281 question #31 exhibit

Options

  • AThis configuration enables a MAC address learned on the interface to be persistently retained in
  • BThis configuration enables the device to place a MAC address that persistently causes network
  • CThis configuration enables the device to shut down the interface when a particular MAC address
  • DThis configuration enables the interface to learn and remember MAC addresses, until the device is

How the community answered

(29 responses)
  • A
    86% (25)
  • B
    3% (1)
  • C
    3% (1)
  • D
    7% (2)

Explanation

The configuration in the exhibit shows the persistent-learning feature enabled on interface ge- Persistent Learning: Persistent-learning ensures that the MAC addresses learned on the interface are retained in the Ethernet-switching table, even after a device reboot. This prevents the need to re-learn MAC addresses after the device restarts, improving stability and reducing downtime. This feature is particularly useful in environments where the re-learning of MAC addresses could cause temporary disruptions or delays in communication, such as in critical Layer 2 network Command Example: set switch-options interface ge-0/0/1.0 persistent-learning

Topics

#MAC address#persistent learning#interface configuration#Junos

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