New Soft JN0-481 Simulations - JN0-481 Training Questions

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Juniper JN0-481 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Data Center Multitenancy: Covers multi-tenant network management through routing zones, VRFs, virtual networks, connectivity templates, security policies, VMware integration, and Data Center Interconnect.
Topic 2
  • Juniper Apstra Architecture: Introduces core Apstra components including the server, device agents, and UI, along with administrative features such as RBAC, event logging, and syslog.
Topic 3
  • Intent-Based Analytics: Covers Apstra's analytics tools including Graph Explorer, graph queries, and intent-based analytics probes for network monitoring, validation, and troubleshooting.
Topic 4
  • Data Center Architectures (IP Fabrics, EVPN-VXLAN): Covers spine-leaf topology design, ECMP load balancing, and underlay
  • overlay routing, along with EVPN and VXLAN concepts including route types, bridge domains, VNI-to-VLAN mapping, and VTEP functions.

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Juniper Data Center, Specialist (JNCIS-DC) Sample Questions (Q41-Q46):

NEW QUESTION # 41
What are two agent processes that operate within the Juniper Apstra device agent? (Choose two.)

Answer: A,C

Explanation:
Within the Juniper Apstra device agent, two of the key processes are:
- Telemetry agent, which collects operational and state data from the device and reports it back to the Apstra server.
- Deployment agent, which applies configuration changes delivered by Apstra to the device.


NEW QUESTION # 42
You have an EVPN-VXLAN data center IP fabric, with all single-homed hosts/servers. Which two EVPN route types are present in this scenario? (Choose two.)

Answer: A,D

Explanation:
In an EVPN-VXLAN fabric where all hosts are single-homed (each endpoint is attached to only one leaf/VTEP), the EVPN control plane still needs to advertise endpoint reachability and enable BUM handling across the overlay. Two EVPN route types are fundamental in this case: Type 2 and Type 3.
EVPN Route Type 2 (MAC/IP Advertisement) is used to advertise learned MAC addresses and, optionally, associated IP addresses for endpoints connected to the local leaf. This enables remote VTEPs to learn where a given host resides (which VTEP to send unicast traffic to) without relying on data-plane flooding for MAC learning. In Junos v24.4 EVPN-VXLAN deployments, Type 2 routes are the core mechanism for distributing endpoint reachability (MAC and MAC+IP bindings) within the EVPN domain.
EVPN Route Type 3 (Inclusive Multicast Ethernet Tag / IMET) is used to establish the flooding scope for BUM traffic in EVPN-VXLAN. In VXLAN fabrics that use ingress replication (common in data centers), Type 3 routes help build the list of remote VTEPs that should receive replicated BUM traffic for a given segment.
By contrast, Type 4 (Ethernet Segment) routes are associated with EVPN multihoming (ESI-based) and DF election; with only single-homed hosts, Type 4 is not required. Type 7 is not part of the baseline single-homed EVPN-VXLAN host advertisement set in this context.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/concept/evpn-bgp-multihoming-overview.html
https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/topic-map/assisted-replication-evpn.html


NEW QUESTION # 43
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?

Answer: A

Explanation:
In Apstra, Deploy Mode = Drain is the operational mechanism used to gracefully remove a switch from active forwarding before performing maintenance such as an OS upgrade. Drain mode is specifically intended to drain traffic while preserving fabric stability, so that maintenance can be executed with minimal to no application impact, provided the fabric design has sufficient redundancy (for example, ECMP in the underlay and dual-homing/ESI for server attachments). In an EVPN-VXLAN IP fabric, taking a leaf or spine abruptly out of service can cause transient loss of reachability as underlay adjacencies reconverge and the overlay recalculates paths. By placing the device into Drain, Apstra adjusts intent so that traffic is shifted away from the device as much as possible, reducing dependency on it before the upgrade begins.
This is different from Undeploy, which removes Apstra-rendered configuration and is generally used for decommissioning; if a device is carrying traffic, Apstra guidance is to drain first. Ready is a pre-deploy state used in lifecycle workflows, not a maintenance traffic-shifting mode. Deploy keeps the device fully participating. Therefore, for a maintenance window where the goal is "upgrade with minimal interruption," the correct mode is Drain, then perform the Junos v24.4 upgrade, and finally return the device to Deploy.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-drain-mode/apstra-drain-mode.pdf
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/topic-map/deploy-mode-update-datacenter.html
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/topic-map/device-config-lifecycle.html


NEW QUESTION # 44
What is the purpose of a Juniper Apstra rack?

Answer: A


NEW QUESTION # 45
Juniper Apstra provides five different predefined user roles.
Given this information, what is the main difference between the administrator and the user role?

Answer: A

Explanation:
The key difference is that the administrator role in Juniper Apstra can manage system-wide settings and make changes to other user roles, while the user role is limited to operational tasks within assigned blueprints and cannot make any changes to other user types.


NEW QUESTION # 46
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