JNCIS-DC Certification JN0-481 PDF Dumps Updated 2025

1. Get The Most Updated JNCIS-DC JN0-481 Dumps for Good Preparation Exam : JN0-481 Title : Data Center, Specialist (JNCIS-DC) https://www.passcert.com/JN0-481.html 1 / 5

2. Get The Most Updated JNCIS-DC JN0-481 Dumps for Good Preparation 1.A DevOps engineer is using Apstra's Intent-Based Analytics (IBA) to investigate a report of intermittent high latency for an application. The engineer suspects that some links in the fabric might be overutilized due to suboptimal ECMP load balancing. Which Apstra IBA feature would be most effective for verifying this suspicion? A. The BGP session anomaly probe. B. A custom query of the Apstra graph database to check interface descriptions. C. The "Interface Traffic" and "Link Utilization" predefined probes. D. The Time Voyager feature to compare routing tables. Answer: C 2.A network operations engineer is troubleshooting an EVPN-VXLAN fabric where a host in VLAN 100 cannot communicate with a host in VLAN 200. Both hosts are connected to the same leaf switch (Leaf-1). The engineer suspects an issue with the Layer 3 routing configuration within the overlay. The fabric uses an Edge-Routed Bridging (ERB) model. The engineer issues the following command on Leaf-1: user@Leaf-1> show evpn database Instance: default-switch VLAN VNI MAC address Active source 100 10100 00:0c:29:11:22:33 vtep.32769 200 10200 00:0c:29:44:55:66 vtep.32769 ... user@Leaf-1> show configuration routing-instances TENANT-A { instance-type vrf; interface irb.100; interface irb.200; route-distinguisher 192.168.0.1:100; vrf-target target:65001:100; vrf-table-label; } Given this output, what is the most likely reason for the communication failure? A. Leaf-1 is not advertising EVPN Type 5 routes for the IRB subnet. B. Both IRB interfaces are correctly configured in the same VRF, so the issue must be in the underlay. C. The MAC addresses for the hosts have not been learned. D. The VTEP interface on Leaf-1 is down. Answer: A Timestamp Oct 27 10:20:15 Oct 27 10:21:05 3.An Operations Engineer has been tasked with managing an Apstra-managed fabric. A key part of the daily workflow is to check for any deviations from the intended state. Which two features in the Apstra UI would be the primary tools for this daily health check? (Choose 2.) A. The Design Templates section B. The main Blueprint Dashboard C. The Time Voyager D. The Device Profiles section 2 / 5

3. Get The Most Updated JNCIS-DC JN0-481 Dumps for Good Preparation E. The Intent-Based Analytics (IBA) Dashboards Answer: B, E 4.A NOC technician is investigating a BGP session flap that occurred overnight in an Apstra-managed fabric. The technician needs to find the exact time the anomaly was raised and see any related events that happened around the same time. Which section of the Apstra UI is the primary source for this type of historical event and anomaly information? A. The Event Log B. The Staged configuration tab C. The Active configuration tab D. The main Blueprint dashboard Answer: A 5.A solution architect is presenting the Juniper Apstra architecture to a customer. The architect needs to explain the function of the main components. What is the primary role of the Apstra server in the architecture? A. To directly forward data plane traffic between spine and leaf switches. B. To act as a BGP route reflector for the EVPN overlay control plane. C. To execute routing protocol processes on behalf of the physical switches. D. To serve as the central repository of intent, configuration, and telemetry, and to host the management UI. Answer: D 6.Asystems administrator is configuring a new data center fabric with EVPN-VXLAN. For a specific tenant VRF, the administrator needs to ensure that routes from this VRF are advertised to other VTEPs but also that this VRF can receive routes from a shared services VRF located elsewhere in the fabric. Which combination of `vrf-import` and `vrf-export` policies would achieve this? A. An export policy that matches the tenant's own route target, and an import policy that matches only the shared services route target. B. An export policy that matches both the tenant's route target and the shared services route target, and an import policy that does the same. C. An export policy that matches only the shared services route target, and an import policy that matches only the tenant's own route target. D. An export policy that matches the tenant's own route target, and an import policy that matches both the tenant's own route target AND the shared services route target. Answer: D 7.A systems administrator is troubleshooting a connectivity issue between two VMs, VM-A and VM-B, in an EVPN-VXLAN fabric. The administrator has confirmed that the underlying BGP sessions for the underlay and overlay are up and that both VMs can ping their default gateways (the IRB interfaces on their respective leaf switches). The administrator checks the EVPN database on the local leaf switch (Leaf-A) where VM-A is connected, but does not see an entry for VM-B's MAC address. 3 / 5

4. Get The Most Updated JNCIS-DC JN0-481 Dumps for Good Preparation user@Leaf-A> show evpn database Instance: default-switch VLAN VNI MAC address 100 10100 00:50:56:01:0A:01 ... However, on the remote leaf switch (Leaf-B), the entry for VM-B is present. user@Leaf-B> show evpn database Instance: default-switch VLAN VNI MAC address 100 10100 00:50:56:01:0B:02 vtep.32769 ... What is the most likely cause of this issue? A. VM-B is using a duplicate IP address, causing a conflict. B. The VNI-to-VLAN mapping is incorrect on Leaf-A. C. The spine switches are not correctly reflecting the EVPN Type 2 route from Leaf-B to Leaf-A. D. The underlay routing is down between Leaf-A and Leaf-B. Answer: C Active source vtep.32769 Timestamp Oct 27 11:30:15 Active source Timestamp Oct 27 11:31:00 8.An Operations Engineer is extending a Layer 2 domain between two racks in an EVPN-VXLAN fabric. A server in Rack 1, connected to Leaf-1, needs to be in the same subnet as a server in Rack 2, connected to Leaf-2. What is the function of the EVPN Instance (EVI), also known as the `vlan-id` or `bridge-domain-id` in this scenario? A. It provides the IP address for the virtual tunnel endpoint (VTEP) interface. B. It uniquely identifies the Layer 2 domain across the entire fabric, ensuring that only VTEPs configured with the same EVI will exchange MAC addresses for that domain. C. It elects the designated forwarder for handling BUM traffic between the two racks. D. It acts as the Route Distinguisher to make the MAC addresses unique within the BGP control plane. Answer: B 9.A network engineer is configuring a new EVPN-VXLAN fabric. The underlay is established using EBGP, and all VTEPs have IP reachability to each other's loopback addresses. The overlay will also use BGP to exchange EVPN routes. How should the overlay BGP sessions be configured between the leaf VTEPs? A. Establish IBGP peering sessions from each leaf VTEP to the spine switches, which are configured as route reflectors. B. Establish EBGP peering sessions directly between all leaf VTEPs in a full mesh. C. Establish an EBGP peering session from each leaf VTEP to its connected spine switches. D. Establish IBGP peering sessions directly between all leaf VTEPs in a full mesh. Answer: A 10.A network engineer is troubleshooting an EVPN-VXLAN fabric where hosts are unable to communicate with destinations outside the fabric. The fabric uses border leaf switches to connect to an external router. 4 / 5

5. Get The Most Updated JNCIS-DC JN0-481 Dumps for Good Preparation The engineer checks the local leaf switch connected to a host and confirms it has learned the host's MAC/IP address. However, the `inet.0` table on the local leaf does not contain a default route. The border leaf switch has the following configuration: routing-instances { TENANT-A-VRF { instance-type vrf; ... routing-options { static { route 0.0.0.0/0 next-hop 172.16.1.1; } } vrf-export EXPORT-DEFAULT-POLICY; } } policy-options { policy-statement EXPORT-DEFAULT-POLICY { term 1 from protocol static; term 1 then { community add COMM-DEFAULT; accept; } } community COMM-DEFAULT members target:65001:100; } The local leaf switch has a VRF import policy that accepts routes with the community `target:65001:100`. What is the most likely reason the default route is missing on the local leaf switch? A. The external router at 172.16.1.1 is not advertising a default route to the border leaf. B. The EVPN overlay requires EVPN Type 2 routes, not Type 5, for default route advertisement. C. The local leaf's VRF import policy is blocking the default route. D. The static route needs to be redistributed into BGP on the border leaf. Answer: D 11.An architect is planning a large data center that will eventually grow to support thousands of servers, requiring more leaf switches than a single set of spines can support. Which architectural evolution allows the data center to scale beyond a single 3-stage Clos fabric? A. Replacing the spine switches with larger, more powerful chassis-based systems. B. Migrating to a full-mesh topology between all leaf switches. C. Implementing a ring topology to connect multiple 3-stage fabrics. D. Adding a second layer of spine switches, creating a 5-stage Clos fabric. Answer: D 5 / 5