Which method can be used to recover a Junos device that is unable to boot normally?

Using the request system software rollback command from the CLI.

Replacing the hardware components.

Booting from alternate media such as a USB drive or the network.

Loading the rescue configuration from the CLI.

What is the recommended post-upgrade verification step after installing a new Junos OS version?

Delete the old software package from /var/tmp to free up space.

Check the show version command to confirm the new software version is active.

Reboot the device a second time to ensure the new version is loaded.

Run the request system software rollback command to revert to the previous version.

A Junos device fails to boot normally, and the engineer suspects the software image is corrupted. The engineer has physical access to the device and a USB drive with a valid Junos image. What is the appropriate recovery procedure?

Reboot the device multiple times to clear the corrupted image.

Boot the device from the USB drive using the 'request system software add' command.

Interrupt the boot process and select the USB drive as the boot device from the boot menu.

Use the 'load rescue' command to restore the system from the rescue configuration.

What should you consider before downgrading Junos OS to an earlier version?

The configuration may use features that are not supported in the older version.

The downgrade process requires a complete reinstallation of all packages.

The device will lose all user accounts and passwords.

The device will automatically revert to the factory default configuration.

A Junos device fails to boot, and the engineer needs to recover the system. The engineer has a rescue configuration saved on the device. What is the purpose of the rescue configuration in this recovery scenario?

It allows the device to boot from an alternate media source.

It restores the device's configuration to a known-good state.

It provides a backup of the software image that can be used to reinstall the OS.

It automatically upgrades the device to the latest Junos version.

Juniper NetworksCertified Associate, Junos

Domain 5Objective 4

Junos OS Installation and Upgrades JN0-105 Practice Questions (Page 4)

Part of the Operational Monitoring and Maintenance domain, which makes up ~15% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

Questions 16–20

16foundation · easy
Which method can be used to recover a Junos device that is unable to boot normally?
Select an answer first
17foundation · easy
What is the recommended post-upgrade verification step after installing a new Junos OS version?
Select an answer first
18application · medium
A Junos device fails to boot normally, and the engineer suspects the software image is corrupted. The engineer has physical access to the device and a USB drive with a valid Junos image. What is the appropriate recovery procedure?
Select an answer first
19foundation · easy
What should you consider before downgrading Junos OS to an earlier version?
Select an answer first
20application · medium
A Junos device fails to boot, and the engineer needs to recover the system. The engineer has a rescue configuration saved on the device. What is the purpose of the rescue configuration in this recovery scenario?
Select an answer first

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