JN0-480 Exam Study Guide: The Ultimate 2026 Practice Test

When working with logical devices, you specify where each port group is connected by selecting the port group layout and the port speed and role (s) for each port group.  The Juniper Apstra UI offers two options to the operator for the port group role:  unused  and  generic 1 .

Unused : This option means that the port group is not configured or used by Apstra.  This can be useful for ports that are faulty, reserved, or not part of the data center fabric 1 .

Generic : This option means that the port group is configured with a generic role that is not specific to any device type or function.  This can be useful for ports that are used for testing, troubleshooting, or custom purposes 1 .  References :

Logical Devices

When a new switch is added to Juniper Apstra software, it initially shows the “0 OS-Quarantined” status, which means that the device is not yet managed by Apstra and has not been assigned to any blueprint. The proper next step to make the device ready for use in a blueprint is to acknowledge the device, which is a manual action that confirms the device identity and ownership.  Acknowledging the device changes its status to “OOS-Ready”, which means that the device is ready to be assigned to a blueprint and deployed 1 2 .  References :

Managing Devices

AOS Device Configuration Lifecycle

To create a new routing zone, you must specify the VRF Name, VLAN ID, and VNI for the routing zone. These are the mandatory fields in the user interface shown in the exhibit. The VRF Name is the name of the L3 domain that isolates the IP traffic of the routing zone from other routing zones. The VLAN ID is the identifier for the VLAN tagged Layer 3 links on external connections. The VNI is the VxLAN Network Identifier associated with the routing zone. The Routing Policies are optional fields that allow you to configure import and export route targets for the routing zone. These are only applicable for EVPN routing zones, which use MP-EBGP as the overlay control protocol. The other options are incorrect because:

A. VRF Name only is wrong because you also need to specify the VLAN ID and VNI for the routing zone.

B. VRF Name and Routing policies is wrong because you also need to specify the VLAN ID and VNI for the routing zone. Routing policies are optional and only relevant for EVPN routing zones.

D. VRF Name, VLAN ID, VNI, Routing Policies is wrong because Routing Policies are optional and not required to create a new routing zone.  References :

Routing Zones (Virtual)

Data Center Automation Using Juniper Apstra