Try Free Juniper JN0-480 Updated Questions & Answers

Question No. 1

When working with logical devices, you specify where each port group is connected.

In this scenario, which two Juniper Apstra Ul options are available to the operator? {Choose two.)

Arouter

Bunused

Cgeneric

Dfirewall

Show Answer

Correct Answer: B, C

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:unusedandgeneric1.

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 fabric1.

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 purposes1.Reference:

Logical Devices

Question No. 2

You have designed your fabric in Juniper Apstra prior to deploying the network devices.

Which Apstra element in the Staged tab would be used to assist the team that is installing and cabling the devices?

AConnectivity Templates

BVirtual Networks table

CManaged Devices list

DLinks table

Show Answer

Correct Answer: D

The Links table in the Staged tab shows the physical connections between the devices in the fabric. It provides information such as the source and destination device names, hostnames, serial numbers, roles, interfaces, and link status. The Links table can be used to assist the team that is installing and cabling the devices by verifying that the devices are connected correctly and that the links are operational. The Links table can also be used to troubleshoot any connectivity issues that may arise during the installation process. For more information, seeLinks (Staged).Reference:

Links (Staged)

Topology (Staged)

Staged

Question No. 3

Exhibit.

You are working to build an ESI-LAG for a multihomed server. The ESI-LAG is not coming up as multihomed.

Referring to the exhibit, what are two solutions to this problem? (Choose two.)

AThe gateway IP addresses on both devices must be different.

BThe LACP system ID on both devices must be the same.

CThe loopback IP addresses on both devices must be the same.

DThe ESI ID on both devices must be the same.

Show Answer

Correct Answer: B, D

According to the Juniper documentation1, an ESI-LAG is a link aggregation group (LAG) that spans two or more devices and is identified by an Ethernet segment identifier (ESI). An ESI-LAG provides redundancy and load balancing for a multihomed server in an EVPN-VXLAN network. To configure an ESI-LAG, you need to ensure that the following requirements are met:

The LACP system ID on both devices must be the same. This ensures that the LACP protocol can negotiate the LAG parameters and form a single logical interface for the server.

The ESI ID on both devices must be the same. This ensures that the EVPN control plane can advertise the ESI-LAG as a single Ethernet segment and synchronize the MAC and IP addresses of the server across the devices.

The VLAN ID and VNI on both devices must be the same. This ensures that the server can communicate with other hosts in the same virtual network and that the VXLAN encapsulation and decapsulation can work properly.

In the exhibit, the LACP system ID and the ESI ID on both devices are different, which prevents the ESI-LAG from coming up as multihomed. Therefore, the correct answer is B and D. The LACP system ID on both devices must be the same and the ESI ID on both devices must be the same.Reference:ESI-LAG Made Easier with EZ-LAG,Example: Configuring an ESI on a Logical Interface With EVPN-MPLS Multihoming,Introduction to EVPN LAG Multihoming

Question No. 4

You want to make a widget appear on the main dashboard in Juniper Apstr

a. In this scenario, which statement is correct?

AWhen creating the widget, select the Add to Blueprint Dashboard option.

BOn the blueprint dashboard, click on the Add Widget option.

CWidgets automatically appear on the blueprint dashboard.

DSet the Default toggle switch to On for the desired widget.

Show Answer

Correct Answer: D

In Juniper Apstra, a widget is a graphical element that displays data from an intent-based analytics (IBA) probe. A widget can be used to monitor different aspects of the network and raise alerts to any anomalies. A widget can be viewed by itself or added to an analytics dashboard.A dashboard is a collection of widgets that can be customized and organized according to the user's preference1.

The main dashboard in Juniper Apstra is the blueprint dashboard, which is the default view that shows the network information and configuration for the active blueprint. A blueprint is a logical representation of the network design and intent.The blueprint dashboard can display the system-generated dashboards, the user-generated dashboards, and the individual widgets that are relevant to the network2.