JNCIA-Junos: Juniper Networks Certified Associate – Junos — Question 64

You are connected to your Junos device using an SSH connection to the fxp0 interface. No other interfaces are currently configured beyond their default settings.
You commit a configuration that makes the fxp0 interface unreachable from your management network.
In this scenario, how would you re-establish communication with the device?

Answer options

• A. Connect to the console of the device.
• B. Establish an SSH connection to the loopback interface.
• C. Power off and power on the device.
• D. Unplug the network cable and plug it back in.

Correct answer: A

Explanation

The correct answer is A, as connecting to the console will allow you direct access to the device regardless of the network configuration. Options B and C are not feasible because the loopback interface cannot be accessed without a working network connection, and simply powering off the device may not resolve the configuration issue. Option D does not address the root cause of the connectivity problem.