Practice Free JN0-481 Exam Online Questions

Question #1

In the case of IP Clos data center five-stage fabric design, what are two rotes of the super spines? (Choose two.)

A . Super spines are used to interconnect two different data center pods.
B . Super spines connect to all spine devices within the five-stage architecture.
C . Super spines are used to connect leaf nodes within a data center pod.
D . Super spines are always connected to an external data center gateway.

Correct Answer: A B
A B

Explanation:

In the case of IP Clos data center five-stage fabric design, the super spines are the devices that provide the highest level of aggregation in the network.

They have two main roles:

– Super spines are used to interconnect two different data center pods. A pod is a cluster of leaf and spine devices that form a 3-stage Clos topology. A 5-stage Clos topology consists of multiple pods that are connected by the super spines. This allows for scaling the network to support more devices and bandwidth.

– Super spines connect to all spine devices within the five-stage architecture. The spine devices are the devices that provide the second level of aggregation in the network. They connect to the leaf devices, which are the devices that provide access to the end hosts. The super spines connect to all the spine devices in the network, regardless of which pod they belong to. This provides any-to-any connectivity between the pods and enables optimal routing and load balancing.

The following two statements are incorrect in this scenario:

– Super spines are used to connect leaf nodes within a data center pod. This is not true, because the leaf nodes are connected to the spine nodes within the samepod. The super spines do not connect to the leaf nodes directly, but only through the spine nodes.

– Super spines are always connected to an external data center gateway. This is not true, because the super spines are not necessarily involved in the external connectivity of the data center. The external data center gateway is a device that provides the connection to the outside network, such as the Internet or another data center. The external data center gateway can be connected to the super spines, the spine nodes, or the leaf nodes, depending on the design and the requirements of the network.

References:

– 5-stage Clos Architecture ― Apstra 3.3.0 documentation

– 5-Stage Clos Architecture | Juniper Networks

– Extreme Fabric Automation Administration Guide

Question #2

Exhibit.

Referring to the exhibit, what is the minimum information you must add to create a new routing zone?

A . VRF Name only
B . VRF Name and Routing policies
C . VRF Name, VLAN ID. And VNI
D . VRF Name, VLAN ID, VNI, Routing Policies

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Question #3

You use Juniper Apstra to enable a new VXLAN virtual network.

Which two components would be automatically derived in this situation? (Choose two.)

A . IP subnet
B . VLAN-ID
C . VXLAN VNI
D . Route Zone

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Question #4

Which statement about Juniper Apstra role-based access control is correct?

A . The viewer role is predefined and can be deleted.
B . The administrator role can see all permissions.
C . The user role can create roles.
D . The administrator role is the only predefined role.

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Question #5

You are receiving cable, interface, and BGP anomalies from several devices within the data center fabric.

In Juniper Apstra. how would you troubleshoot these types of errors?

A . In the Ul, go to Time Voyager and revert to the last working version.
B . In the Ul, access the console to the devices and review the interface states.
C . In the Ul, go to Devices and confirm that agent connectivity is fine.
D . In the Ul, verify device connectivity by consulting the cable map.

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Question #6

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

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

A . router
B . unused
C . generic
D . firewall

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Question #7

Exhibit.

Referring to the exhibit, which role does Device A serve in an IP fabric?

A . leaf
B . spine
C . super spine
D . server

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Question #8

Which two statements are correct regarding a pristine configuration in Juniper Apstra? (Choose two.)

A . It is the configuration file placed on the device when decommissioning the device.
B . It is the device’s currently active configuration.
C . It Is the configuration file on a device before acknowledgment in Apstra.
D . It is the device’s previously active configuration.

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Correct Answer: A C
A C

Explanation:

A pristine configuration in Juniper Apstra is the configuration file that is used to onboard a device into the Apstra software application. A pristine configuration contains the minimum settings that are required for the device to communicate with the Apstra server, such as the hostname, management IP address, username, password, and SSH key1.

A pristine configuration has the following characteristics:

– It is the configuration file placed on the device when decommissioning the device. This is because when a device is decommissioned from the Apstra software application, it is reverted back to its pristine configuration, which removes all the network configuration and services that were applied by the Apstra software application. This allows the device to be reused or repurposed for another network2.

– It is the configuration file on a device before acknowledgment in Apstra. This is because when a device is onboarded into the Apstra software application, it is initially in the discovery state, which means that the device is discovered by the Apstra server, but not yet acknowledged by the user. In the discovery state, thedevice has the pristine configuration, which can be viewed and edited by the user. Once the user acknowledges the device, the device moves to the deployed state, which means that the device is ready to receive the network configuration and services from the Apstra software application3.

The following two statements are incorrect in this scenario:

– It is the device’s currently active configuration. This is not true, because the pristine configuration is not the device’s currently active configuration, unless the device is in the discovery state or the decommissioned state. In the deployed state, the device’s currently active configuration is the network configuration and services that are applied by the Apstra software application, which are based on the blueprint and the intent3.

– It is the device’s previously active configuration. This is not true, because the pristine configuration is not the device’s previously active configuration, unless the device is in the decommissioned state. In the discovery state, the pristine configuration is the device’s initial configuration, which may or may not be the same as the device’s previous configuration before being onboarded into the Apstra software application. In the deployed state, the device’s previously active configuration is the network configuration and services that were applied by the Apstra software application before the last commit3.

References:

– Pristine Config

– Decommission Device

– Device States

Question #9

You want to keep virtual networks isolated from each other within the Juniper Apstra system.

In this scenario, what are three ways to accomplish this task? (Choose three.)

A . Disable IPv4 connectivity when creating the virtual network within the same Routing Zone.
B . Enable Security Policy for virtual networks in the same Routing Zone.
C . Disable Route Target exports when creating the Routing Zones.
D . Use Connectivity Templates to block access within the same Routing Zone.
E . Put each network in different Routing Zones.

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Question #10

You want to add a configuration that is not supported by Juniper Apstra reference architecture using a configlet.

Which two configurations would be applicable in this scenario? (Choose two.)

A . static route configuration
B . policy configuration
C . syslog configuration
D . NTP configuration

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