Download Juniper JN0-481 Sample Questions [Oct-2025]
Real JN0-481 Exam Questions and Answers FREE
NEW QUESTION # 36
Which two statements ate correct about the information shown in the exhibit? (Choose two.)
- A. The system is fully managed by Juniper Apstra.
- B. The device shown is a generic system.
- C. Four physical interfaces exist in a LAG facing the leaf pair.
- D. The physical ports are not part of the LAG.
Answer: B,C
Explanation:
A generic system is a device that is not managed by Juniper Apstra and does not have a specific role or type assigned to it. A generic system can be used to represent a server, a firewall, a load balancer, or any other device that is not part of the fabric. In the exhibit, the device shown is a generic system, as indicated by its role, system type, and management level. Therefore, the correct answer is B. The device shown is a generic system. A LAG is a link aggregation group that bundles multiple physical interfaces into a single logical interface. A LAG can provide increased bandwidth, redundancy, and load balancing for the network traffic. In the exhibit, the device shown has four physical interfaces that are part of a LAG, as indicated by their description and li_type. The LAG is facing the leaf pair, which are the two switches that connect to the device.
NEW QUESTION # 37
Which statement is true when onboarding a Juniper Networks device using a Juniper Apstra ZTP server?
- A. The Device Key lo be used can be set In the dhcpd.conf file on the ZTP server.
- B. The Hostname will be the serial-number of the device.
- C. The Management IP address cannot be predetermined.
- D. The State can be set In the ztp.Json file on the ZTP server.
Answer: D
Explanation:
The ztp.Json file on the Apstra ZTP server contains the configuration parameters for each device that is onboarded using ZTP. One of the parameters is the State, which can be one of the following values: init, ready, in_progress, done, error, or disabled. The State indicates the current status of the device in the ZTP process. For example, if the State is ready, it means that the device is ready to be onboarded by the Apstra ZTP server. If the State is done, it means that the device has completed the ZTP process and is managed by the Apstra server. The State can be manually set or changed in the ztp.Json file to control the behavior of the device during ZTP.
NEW QUESTION # 38
Multilenancy for applications is achieved by creating virtual networks (VNs) within which construct?
- A. routing table
- B. connectivity template
- C. routing zone
- D. security policy
Answer: C
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 # 39
Using the Juniper Apstra multitenancy capabilities, which approach will allow a tenant to interconnect two different routing zones?
- A. Use interconnection through an external gateway.
- B. Use interconnection through the fabric spine nodes.
- C. Interconnection cannot be enabled.
- D. Interconnection is the default behavior.
Answer: A
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. For virtual networks with Layer 3 SVI, the SVI is associated with a Virtual Routing and Forwarding (VRF) instance for each routing zone isolating the virtual network SVI from other virtual network SVIs in other routing zones. If you're using multiple routing zones, external system connections must be from leaf switches in the fabric. Routing between routing zones must be accomplished with external systems.
NEW QUESTION # 40
In Juniper Apstra, what are three valid deploy modes when assigning systems to your blueprint?
(Choose three.)
- A. Standby
- B. Deploy
- C. Ready
- D. OOS-Ready
- E. Drain
Answer: B,C,E
NEW QUESTION # 41
You want to make a widget appear on the main dashboard in Juniper Apstr
- A. Set the Default toggle switch to On for the desired widget.
- B. When creating the widget, select the Add to Blueprint Dashboard option.
- C. On the blueprint dashboard, click on the Add Widget option.
- D. Widgets automatically appear on the blueprint dashboard.
- E. In this scenario, which statement is correct?
Answer: D
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 # 42
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 configuration file on a device before acknowledgment in Apstra.
- C. It is the device's currently active configuration.
- D. It is the device's previously active configuration.
Answer: A,B
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 key. 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 network.
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, the device 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 application.
NEW QUESTION # 43
Which attribute enables Juniper Apstra to scale and manage thousands of devices with a single server instance?
- A. Apstra is installed as a cloud resource.
- B. Apstra is available as an OVA.
- C. Apstra is based on NGINX.
- D. Apstra is a distributed state system.
Answer: D
Explanation:
The attribute that enables Juniper Apstra to scale and manage thousands of devices with a single server instance is that Apstra is a distributed state system. This means that Apstra uses a graph database to store the network topology and configuration data in a distributed and replicated manner across multiple server nodes. This allows Apstra to handle large-scale networks with high performance, reliability, and availability. Apstra also uses a stateful orchestration engine that ensures the network state is always consistent with the intent of the blueprint, which is the logical representation of the network design and behavior. Apstra can automatically detect and resolve any discrepancies between the desired and actual network state, as well as handle any changes or failures in the network.
NEW QUESTION # 44
Which two statements are correct about repairing a Juniper Apstra cabling map before deploying your blueprint? (Choose two.)
- A. Apstra can use LLDP data from the leaf devices to update the leaf-to-generic connections in the cabling map.
- B. You must manually change the cabling map to update spine-to-leaf fabric links.
- C. You must manually change the cabling map to update leaf-to-generic links.
- D. Apstra can use LLDP data from the spine-to-lea! fabric devices to update the connections in the cabling map.
Answer: A,D
Explanation:
The cabling map is a graphical representation of the physical connections between the devices in the data center fabric. It shows the status of the cables, interfaces, and BGP sessions for each device. You can use the cabling map to verify and repair the cabling before deploying your blueprint. Based on the web search results, we can infer the following statements:
Apstra can use LLDP data from the spine-to-leaf fabric devices to update the connections in the cabling map. This is true because Apstra can collect LLDP data from the devices using the Generic Graph Collector processor and use it to update the cabling map automatically.
LLDP is a protocol that allows devices to exchange information about their identity, capabilities, and neighbors. Apstra can use LLDP data from the leaf devices to update the leaf-to-generic connections in the cabling map. This is true because Apstra can also collect LLDP data from the leaf devices and use it to update the connections to the generic devices, such as routers, firewalls, or servers. Generic devices are devices that are not managed by Apstra but are part of the data center fabric.
You must manually change the cabling map to update spine-to-leaf fabric links. This is false because Apstra can use LLDP data to update the spine-to-leaf fabric links automatically, as explained above. However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
You must manually change the cabling map to update leaf-to-generic links. This is false because Apstra can use LLDP data to update the leaf-to-generic links automatically, as explained above.
However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
NEW QUESTION # 45
What is the purpose of using a routing zone inside Juniper Apstra software?
- A. A routing zone is used to enable the communication between two VNIs within a VRF.
- B. A routing zone is used to enable L4-L7 inspection inside the fabric.
- C. A routing zone is defined to secure the routing protocols.
- D. A routing zone defined at the Apstra manager level requires firewalls to be deployed.
Answer: A
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. For virtual networks with Layer 3 SVI, the SVI is associated with a Virtual Routing and Forwarding (VRF) instance for each routing zone isolating the virtual network SVI from other virtual network SVIs in other routing zones.
NEW QUESTION # 46
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.)
- A. generic
- B. firewall
- C. unused
- D. router
Answer: A,C
Explanation:
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.
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.
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.
NEW QUESTION # 47
In the Apstra design phase, what is the role of DC Reference Design?
- A. It provides a blueprint for the overall data center architecture and configuration
- B. It specifies the color scheme for network cables
- C. It determines the placement of security cameras in the data center
- D. It refers to the design of data center furniture layout
Answer: A
NEW QUESTION # 48
You connect two single-homed servers using Juniper Apstra as shown in the exhibit. You are using the ERB design blueprint with two virtual networks in a common routing zone. In this scenario, which two types of VXLAN tunnels will be automatically created by the EVPN control plane? (Choose two.)
- A. EVPN signaled route Type-8 VXLAN tunnels
- B. EVPN signaled route Type-2 VXLAN tunnels
- C. EVPN signaled route Type-6 VXLAN tunnels
- D. EVPN signaled route Type-3 VXLAN tunnels
Answer: B,D
Explanation:
EVPN route Type-3 is used to advertise the IP address of the VTEP and the VNIs that it supports.
This allows the VTEPs to discover each other and form VXLAN tunnels for the VNIs that they have in common. EVPN route Type-2 is used to advertise the MAC and IP addresses of the hosts connected to the VTEPs. This allows the VTEPs to learn the MAC-to-IP bindings and the MAC-to- VTEP mappings for the hosts in the same VNI. Therefore, these two types of VXLAN tunnels will be automatically created by the EVPN control plane when using Juniper Apstra with the ERB design blueprint and two virtual networks in a common routing zone.
NEW QUESTION # 49
What does EVPN use lo identity which remote leaf device advertised the EVPN route?
- A. a VRF target value
- B. a route target value
- C. a route distinguisher value
- D. a community tag
Answer: C
Explanation:
EVPN uses a route distinguisher (RD) value to identify which remote leaf device advertised the EVPN route. An RD is a 64-bit value that is prepended to the EVPN NLRI to create a unique VPNv4 or VPNv6 prefix. The RD value is usually derived from the IP address of the PE that originates the EVPN route. By comparing the RD values of different EVPN routes, a PE can determine which remote PE advertised the route and which VRF the route belongs to.
NEW QUESTION # 50
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.)
- A. The ESI ID on both devices must be the same.
- B. The LACP system ID on both devices must be the same.
- C. The loopback IP addresses on both devices must be the same.
- D. The gateway IP addresses on both devices must be different.
Answer: A,B
Explanation:
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.
NEW QUESTION # 51
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 A is 0x00.10.10.10.10.10.10.10.10.10.
- B. A valid ESI value for Server B is 0x00.00.00.00.00.00.00.00.00.00.
- C. A valid ESI value for Server B is 0x00.20.20.20.20.20.20.20.20.20.
- D. A valid ESI value for Server A is 0x00.00.00.00.00.00.00.00.00.00.
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 # 52
In the EVPN-VXLAN data center fabric bridged overlay architecture shown in the exhibit, the servers are connected to Lead and Leat6 using the same virtual network identifier (VNI). Which two statements are correct in this scenario? (Choose two.)
- A. Loopback IPv4 addresses must be advertised into the EBGP underlay from leaf and spine devices.
- B. The underlay must use IRB interfaces.
- C. The underlay must be provisioned with PIMv2.
- D. The underlay EBGP peering's must be established between leaf and spine devices.
Answer: A,D
Explanation:
In the EVPN-VXLAN data center fabric bridged overlay architecture shown in the exhibit, the servers are connected to Leaf1 and Leaf6 using the same virtual network identifier (VNI). This means that the servers belong to the same Layer 2 domain and can communicate with each other using VXLAN tunnels across the fabric. The underlay network provides the IP connectivity between the leaf and spine devices, and it uses EBGP as the routing protocol. Therefore, the following two statements are correct in this scenario:
Loopback IPv4 addresses must be advertised into the EBGP underlay from leaf and spine devices. This is because the loopback addresses are used as the source and destination IP addresses for the VXLAN tunnels, and they must be reachable by all the devices in the fabric.
The loopback addresses are also used as the router IDs and the BGP peer addresses for the EBGP sessions.
The underlay EBGP peering's must be established between leaf and spine devices. This is because the EBGP sessions are used to exchange the underlay routing information and the EVPN routes for the overlay network. The EBGP sessions are established using the loopback addresses of the devices, and they follow a spine-and-leaf topology, where each leaf device peers with all the spine devices, and each spine device peers with all the leaf devices.
NEW QUESTION # 53
Referring to the exhibit, how do you display the IPv6 subnets lot all of the listed VXLANs?
- A. An IPv6 Subnets column is not shown, indicating that no VXLAN has an assigned IPv6 subnet
- B. IPv6 subnets ate shown when each VXLAN is selected individually.
- C. Select all VXLANs, and the IPv6 Subnets column will appear
- D. Select Columns, then select IPv6 Subnet.
Answer: D
Explanation:
Referring to the exhibit, the image shows a user interface of the Juniper Apstra software application, which is used for network management and configuration. The image shows the Virtual Networks table under the Resources menu, which displays the details of the VLANs and VXLANs in the network. The table has 11 columns, but only 9 are visible in the image. The other two columns are IPv6 Connectivity and IPv6 Subnet, which are hidden by default. To display the IPv6 subnets for all of the listed VXLANs, the user needs to select Columns, then select IPv6 Subnet. This will show the IPv6 Subnet column in the table, which will display the IPv6 addresses assigned to the VXLANs from the IPv6 pools. For more information, see Virtual Networks (Resources).
NEW QUESTION # 54
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