[Aug 16, 2026] JN0-481 Exam Dumps - 100% Marks In JN0-481 Exam!
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Juniper JN0-481 Exam Syllabus Topics:
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NEW QUESTION # 44
Within Managed Devices in the Juniper Apstra Ul, you notice that several devices have the OOS-Quarantined status. The devices cannot be added to any blueprint. Which action would solve this problem?
- A. Install the agent, even though connectivity is established.
- B. Upload a new pristine configuration.
- C. Fix the hardware issues with the quarantined devices.
- D. Acknowledge the device.
Answer: D
Explanation:
When an agent installation is successful, devices are placed into the Out of Service Quarantined (OOS-QUARANTINED) state using the Juniper Apstra UI. This state means that the device is not yet managed by Apstra and has not been assigned to any blueprint. The device configuration at this point is called Pristine Config. To make the device ready for use in a blueprint, you need to acknowledge the device, which is a manual action that confirms the device identity and ownership. Acknowledging the device changes its status to Out of Service Ready (OOS-READY)12. Reference:
Managing Devices
AOS Device Configuration Lifecycle
NEW QUESTION # 45
What is correct about the selected device shown in the exhibit?
- A. It is an internal generic system.
- B. It is a peer switch.
- C. It is an access switch.
- D. It is an external generic system.
Answer: A
Explanation:
The exhibit shows node100 (Generic System) selected, with links from that generic system to two fabric leaf switches (for example, a leaf participating in an ESI pair and another leaf node). In Apstra 5.1, a Generic System represents an endpoint that is not managed as a network device by Apstra (such as a server, appliance, or host), but it is still modeled so Apstra can apply interface intent (LAG vs single link), connectivity templates, and virtual network attachments.
Because the device is shown as a generic system connected on leaf-facing ports inside the fabric topology, this aligns with an internal generic system. Internal generic systems are used for servers or endpoints that reside "inside" the rack/fabric context and consume leaf switch ports as access-facing connections. This is the common representation for endpoints in EVPN-VXLAN data center designs, where the leaf switches provide the VLAN/VNI mapping and, if required, IRB gateway services within the tenant VRF (routing zone).
An external generic system is typically used for devices outside the fabric boundary-most commonly external routers, firewalls, or upstream networks attached at border leafs-where the intent is external connectivity rather than server access. The selected node is neither a peer switch nor an access switch (those are network infrastructure roles), and the UI explicitly labels it as a Generic System, confirming the correct classification as an internal generic system.
NEW QUESTION # 46
What is the purpose of an interface map in Juniper Apstra?
- A. An interface map specifies a connection between the interfaces of two devices.
- B. An interface map associates a logical device with a device profile.
- C. An interface map specifies the connections between racks in a template.
- D. An interface map specifies the number of ports and the port speeds of a logical device
Answer: A
Explanation:
According to the Juniper documentation1, an interface map is a configuration template that maps interfaces between logical devices and physical hardware devices (represented with device profiles) while adhering to vendor specifications. An interface map specifies a connection between the interfaces of two devices, such as a leaf and a spine, a leaf and a server, or a leaf and an external gateway. An interface map can also specify port transformations, such as breaking out a 40 GbE port into four 10 GbE ports, or disabling unused ports. An interface map can be used to achieve the intended network configuration rendering and to enable features such as LAG, ESI-LAG, or MLAG. Therefore, the correct answer is B. An interface map specifies a connection between the interfaces of two devices. Reference: Interface Maps (Datacenter Design)
NEW QUESTION # 47
Referring to the exhibit, what is the minimum information you must add to create a new routing zone?
- A. VRF Name and Routing policies
- B. VRF Name, VLAN ID, VNI, Routing Policies
- C. VRF Name only
- D. VRF Name, VLAN ID. And VNI
Answer: D
Explanation:
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.
NEW QUESTION # 48
What is the purpose of an EVPN Ethernet segment identifier (ESI)?
- A. to provide a hop count between devices
- B. to specify a BGP community
- C. to identify Layer 2 frame types for filtering purposes
- D. to prevent loops within a LAG connection
Answer: D
Explanation:
An EVPN Ethernet Segment Identifier (ESI) is used to uniquely identify a multi-homed Ethernet segment, such as when multiple links from a device connect to the same EVPN fabric. Its primary purpose is to prevent loops within a LAG connection by ensuring only one active forwarding path while still enabling redundancy and load balancing.
NEW QUESTION # 49
What is the function of an Interface Map in Juniper Apstra?
- A. It maps logical interfaces defined in a Rack Type or Template to the physical interfaces of a specific device model.
- B. It defines the BGP peering relationships between leaf and spine devices.
- C. It maps VXLAN VNIs to VLAN IDs.
- D. It defines the IP addressing scheme for the underlay fabric.
Answer: A
Explanation:
An Interface Map in Juniper Apstra binds the logical interface roles defined within a Rack Type or Template (such as "leaf1 uplink to spine1") to the actual physical interfaces available on a specific hardware device model. This abstraction allows the same logical design to be reused across different hardware platforms simply by selecting the appropriate interface map for each device.
NEW QUESTION # 50
You are attempting to attach the server connected to the my_border_001_leaf1 node's ge-0/0/5 interface to the finance-app virtual network.
Referring to the exhibit, what would you do to solve the problem?
- A. You can set the generic system to the deploy mode.
- B. You can allocate an IP pool resource to the virtual network.
- C. You can assign the finance-app virtual network to the my_border_001_leaf1 node.
- D. You can add a generic system to the physical topology.
Answer: D
Explanation:
In Apstra 5.1, servers are modeled as Generic Systems and must be represented in the blueprint topology so that Apstra can bind an endpoint (the server) to a specific switch interface and then apply the intended connectivity template / virtual network attachment. In the exhibit, the interface ge-0/0/5 on my_border_001_leaf1 is shown as missing from the assignment workflow, which indicates that Apstra does not currently have an endpoint object connected to that port in the blueprint's staged physical topology (or that the port is not presented as an eligible connectivity point for server attachment).
The correct remediation is to add a Generic System connected to my_border_001_leaf1 ge-0/0/5 in Staged > Physical > Topology, thereby creating a modeled server link on that interface. Once the Generic System exists and the interface is a recognized server-facing connectivity point, you can assign the Tagged VXLAN "finance-app" connectivity template (or the VN assignment action driven by that template) to the server-facing interface and then commit the staged changes.
Changing "deploy mode" may affect whether Apstra actively configures a generic system-facing link, but it does not solve a missing interface in the topology model. Likewise, allocating an IP pool is unrelated to making the port available for attachment, and assigning the VN to the switch node is not how server interfaces are attached in this workflow.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/internal-generic-system-create.html
https://www.juniper.net/documentation/us/en/software/apstra5.0/apstra-user-guide/topics/topic-map/virtual-network-assignment-update.html
https://cloudlabs.apstra.com/labguide/Cloudlabs/6.0.0/test-drive-guide/lab1-junos-11_adding-gs.html
NEW QUESTION # 51
Which Juniper Apstra role-based access control (RBAC) role grants full administrative control over the entire Apstra system, including user management?
- A. Superuser
- B. Blueprint Admin
- C. Viewer
- D. Tenant Admin
Answer: A
Explanation:
The Superuser role in Juniper Apstra has full administrative privileges across the entire system, including the ability to create and manage users, roles, blueprints, and all other system-wide settings. This is distinct from more limited roles like Blueprint Admin, which restricts administrative control to specific blueprints only.
NEW QUESTION # 52
You want to make a widget appear on the main dashboard in Juniper Apstr
- A. In this scenario, which statement is correct?
- B. When creating the widget, select the Add to Blueprint Dashboard option.
- C. Widgets automatically appear on the blueprint dashboard.
- D. On the blueprint dashboard, click on the Add Widget option.
- E. Set the Default toggle switch to On for the desired widget.
Answer: C
Explanation:
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 preference. 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 network.
To make a widget appear on the main dashboard in Juniper Apstra, the user needs to set the Default toggle switch to On for the desired widget. This will add the widget to the blueprint dashboard, where it can be viewed along with other network information. The user can also remove the widget from the blueprint dashboard by setting the Default toggle switch to Off for the widget.
NEW QUESTION # 53
Which two statements about ESI values are correct for the server connections to the fabric shown in the exhibit? (Choose two.)
- A. A valid ESI value for Server B is 0x00.00.00.00.00.00.00.00.00.00.
- B. A valid ESI value for Server A is 0x00.10.10.10.10.10.10.10.10.10.
- C. A valid ESI value for Server A is 0x00.00.00.00.00.00.00.00.00.00.
- D. A valid ESI value for Server B is 0x00.20.20.20.20.20.20.20.20.20.
Answer: A,B
Explanation:
To answer this question, we need to understand the concept of ESI values in EVPN LAGs. An ESI is a 10-byte value that identifies an Ethernet segment, which is a set of links that connect a multihomed device (such as a server) to one or more PE devices (such as leaf switches) in an EVPN network. The same ESI value must be configured on all the PE devices that connect to the same Ethernet segment. This allows the PE devices to form an EVPN LAG, which supports active-active or active-standby multihoming for the device. The ESI value can be manually configured (type 0) or automatically derived from LACP (type 1) or other methods. In the exhibit, Server A is connected to two leaf switches (QFX 5210) using a LAG with LACP enabled. Server B is connected to three leaf switches (QFX 5120) using a LAG with LACP enabled.
NEW QUESTION # 54
Referring to the exhibit, how many broadcast domains will an Ethernet frame pass through when traversing the IP fabric from Server A to Server B?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Referring to the exhibit, the image shows a simplified diagram of an IP fabric network connecting two servers, labeled as Server A and Server B. The IP fabric is a network architecture that uses a Clos topology to provide high bandwidth, low latency, and scalability for data center networks.
The IP fabric consists of spine and leaf devices that use BGP as the routing protocol and VXLAN as the overlay technology.
A broadcast domain is a logical portion of a network where any device can directly transmit broadcast frames to other devices at the data link layer (OSI Layer 2). A broadcast frame is a frame that has a destination MAC address of all ones (FF:FF:FF:FF:FF:FF), which means that it is intended for all devices in the same broadcast domain. A broadcast domain is usually bounded by a router, which does not forward broadcast frames to other networks.
In the exhibit, there are two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The first broadcast domain is the one that contains Server A and the leaf device that it is connected to. The second broadcast domain is the one that contains Server B and the leaf device that it is connected to. The IP fabric itself is not a broadcast domain, because it uses IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network.
NEW QUESTION # 55
Juniper Apstra provides five different predefined user roles. Given this information, what is the main difference between the administrator and the user role?
- A. The user role cannot make any changes to other user types.
- B. The user role can make changes to any other role.
- C. The user role can only make changes to the view role.
- D. The user role can only be assigned to specific blueprints.
Answer: A
Explanation:
Apstra role-based access control separates fabric operations from identity and authorization administration. The administrator role includes full permissions, including the ability to manage users and roles (for example, creating users, assigning permissions, and creating/cloning/editing custom roles where allowed). This enables administrators to govern who can access the system and what they are permitted to change across all blueprints and system settings.
The user role, in contrast, is designed for day-to-day fabric work: viewing and editing supported blueprint elements and operational objects within the scope permitted by the role, but not administering other users' access or modifying the role structure itself. In other words, a user can work on the network intent and operations, but cannot elevate privileges, change other users' roles, or otherwise manage user/role administration unless explicitly granted additional permissions through custom roles.
That makes option C the correct statement: the user role cannot make changes to other user types (that is, it lacks the permissions needed to administer identities/roles). Options A, B, and D do not reflect Apstra's RBAC model: roles are not primarily constrained "per blueprint" in that way, and users are not intended to modify other roles-those are administrator-level capabilities.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/concept/user-role-management.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/concept/user-role-management.html
https://www.juniper.net/documentation/us/en/software/apstra5.0/apstra-user-guide/topics/concept/user-role-management.html
NEW QUESTION # 56
Multilenancy for applications is achieved by creating virtual networks (VNs) within which construct?
- A. connectivity template
- B. routing zone
- C. security policy
- D. routing table
Answer: B
Explanation:
A routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone.
NEW QUESTION # 57
You are using Juniper Apstra to manage your three-stage IP fabric. You have not enabled any IBA probes other than those that are enabled by default. You notice that both the Analytics tab and its child, Anomalies tab, have red indicators associated with them.
In this scenario, which condition is occurring in your network?
- A. Someone has manually configured a leaf device without using Apstra.
- B. A managed system has not been acknowledged.
- C. An expected BGP session between a spine and leaf node has failed to establish.
- D. A leaf node is experiencing high CPU utilization.
Answer: C
NEW QUESTION # 58
Exhibit.
Referring to the exhibit, which role does Device A serve in an IP fabric?
- A. super spine
- B. server
- C. leaf
- D. spine
Answer: D
Explanation:
Device A serves as a spine in an IP fabric. An IP fabric is a network architecture that uses a spine-leaf topology to provide high performance, scalability, and reliability for data center networks. A spine-leaf topology consists of two layers of devices: spine devices and leaf devices. Spine devices are the core devices that interconnect all the leaf devices using equal-cost multipath (ECMP) routing. Leaf devices are the edge devices that connect to the servers, storage, or other network devices. In the exhibit, Device A is connected to four leaf devices using multiple links, which indicates that it is a spine device. The other options are incorrect because:
A . leaf is wrong because a leaf device is an edge device that connects to the servers, storage, or other network devices. In the exhibit, Device A is not connected to any servers, storage, or other network devices, but only to four leaf devices, which indicates that it is not a leaf device.
C . super spine is wrong because a super spine device is a higher-level device that interconnects multiple spine devices in a large-scale IP fabric. A super spine device is typically used when the number of leaf devices exceeds the port density of a single spine device. In the exhibit, Device A is not connected to any other spine devices, but only to four leaf devices, which indicates that it is not a super spine device.
D . server is wrong because a server device is a compute or storage device that connects to a leaf device in an IP fabric. A server device is typically the end host that provides or consumes data in the network. In the exhibit, Device A is not connected to any leaf devices, but only to four leaf devices, which indicates that it is not a server device. Reference:
IP Fabric Underlay Network Design and Implementation
IP Fabric Overview
IP Fabric Architecture
NEW QUESTION # 59
You are performing an upgrade to your switches in your network. You want to ensure that the upgrade can be performed without interrupting traffic.
In the Juniper Apstra UI, which deploy mode should be used to accomplish this task?
- A. Deploy
- B. Ready
- C. Drain
- D. Undeploy
Answer: C
Explanation:
In Juniper Apstra, the Drain deploy mode is used to gracefully remove a device from service.
When set to Drain, traffic is rerouted away from the device so that tasks such as OS upgrades can be performed without interrupting live traffic in the fabric. Once the upgrade is complete, the device can be returned to Deploy mode to resume normal operation.
NEW QUESTION # 60
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