JN0-481 Exam Questions - JN0-481 Guide Torrent & Data Center, Specialist (JNCIS-DC) Test Guide

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Juniper JN0-481 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	Apstra Design Phase: Covers pre-deployment planning elements such as reference designs, logical devices, device profiles, rack types, interface maps, and templates, including their configuration and troubleshooting.
Topic 3	Blueprint Operations: Covers day-to-day blueprint management including making and reverting changes, querying, virtual networks, Time Voyager, anomaly detection, property sets, configlets, and configuration types.
Topic 4	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.

Juniper Data Center, Specialist (JNCIS-DC) Sample Questions (Q58-Q63):

NEW QUESTION # 58
An operator is working on a capacity-planning exercise. The operator needs to examine the pre-built time-series information regarding link utilization. In the Juniper Apstra UI, which top-level tab would the operator have to access to find this information?

A. Dashboard
B. Active
C. Staged
D. Analytics

Answer: D

Explanation:
In Apstra 5.1, capacity planning based on pre-built time-series telemetry (such as link utilization trends) is part of Intent-Based Analytics (IBA). IBA is where Apstra ingests streaming telemetry from fabric devices, stores it as time-series data, and presents it through built-in analytics views (dashboards/widgets) and probes. Because the question specifically calls out "pre-built time series information regarding link utilization," the correct UI location is the Analytics top-level tab within the blueprint.
The Active tab is primarily oriented to operational state and day-2 workflows (for example, viewing live state, queries, and device-level operational views). The Staged tab is where you modify intent (physical/virtual design, policies, catalog items) prior to committing and deploying. The Dashboard provides a high-level blueprint overview and navigation, but the drill-down and time-series analytics views that support trending and capacity analysis are accessed via Analytics.
In an EVPN-VXLAN fabric using Junos v24.4, link utilization time-series is particularly valuable because underlay congestion can degrade overlay performance (BGP convergence behavior, ECMP distribution effectiveness, and endpoint experience). Apstra's Analytics tab centralizes these metrics so operators can evaluate utilization baselines, identify sustained hot links, and support proactive actions (rebalancing, adding capacity, or adjusting design intent) without relying on ad-hoc per-device CLI polling.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-custom-telemetry-collection-guide/topics/concept/apstra-telemetry-and-intent-based-analytics.html

NEW QUESTION # 59
What is the purpose of using a routing zone inside Juniper Apstra software?

A. A routing zone is used to enable L4-L7 inspection inside the fabric.
B. A routing zone defined at the Apstra manager level requires firewalls to be deployed.
C. A routing zone is defined to secure the routing protocols.
D. A routing zone is used to enable the communication between two VNIs within a VRF.

Answer: D

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 # 60
In a three-stage Clos network, what are important key design aspects of a data center fabric? (Choose two.)

A. Servers are connected to spine devices.
B. Servers are connected to leaf devices.
C. Fabric traffic enters and exits the border devices.
D. External traffic enters and exits the spine devices.

Answer: B,C

Explanation:
A three-stage Clos (leaf-spine) data center fabric separates roles to keep forwarding predictable and scalable. The leaf layer is the attachment point for endpoints, so servers connect to leaf devices. This is where the fabric accepts workload traffic, applies edge policies, and provides tenant/service constructs (for EVPN-VXLAN fabrics, the leafs typically act as VTEPs and host IRB gateways as required). The spine layer provides the non-blocking transit core between leafs using L3 underlay routing and ECMP, but it is not the place where servers attach directly.
For north-south connectivity, a typical three-stage Apstra data center architecture includes border leaf switches. These border devices provide the controlled connection point between the fabric and external networks (Internet/WAN/DCI or upstream services). As a result, fabric traffic enters and exits the border devices, not the spines. This design keeps the spines dedicated to high-speed east-west transit and simplifies operations: external routing policies, security controls, and inter-domain handoffs are concentrated at the border, while the spines remain a uniform L3 transit tier. In Junos v24.4 EVPN-VXLAN deployments, this separation also helps maintain clean overlay boundaries and consistent underlay behavior across the fabric.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/juniper-data-center-assurance/user-guide/topics/concept/dc-network-topology-on-dc-assurance.html
https://www.juniper.net/documentation/us/en/software/jvd/jvd-3-stage-datacenterdesign-with-juniper-apstra/solution_architecture.html
https://www.juniper.net/content/dam/www/assets/white-papers/us/en/design-considerations-for-spine-and-leaf-ip-fabrics.pdf

NEW QUESTION # 61
What is the primary reason for creating an Apstra worker node?

A. To support more than one blueprint
B. To create a space for storing event logs
C. To run Zero Touch Provisioning (ZTP)
D. To offload off-box agents and Intent-Based Analytics (IBA)

Answer: D

Explanation:
In Apstra 5.1, the worker node's primary purpose is to add scalable runtime capacity to an Apstra cluster by hosting off-box services that would otherwise consume resources on the controller. Specifically, worker nodes run containerized services such as off-box device agents (used to communicate with and manage devices) and Intent-Based Analytics (IBA) components (such as probes and analytics-related services). This design keeps the controller node focused on cluster management and control-plane functions (API handling, cluster-wide state, blueprint control workflows), while shifting resource-intensive operational services to worker nodes.
As your fabric grows-more switches, more telemetry, more devices requiring agent connectivity-CPU and memory demand increases notably, especially when IBA is enabled. Adding worker nodes allows you to scale those container workloads horizontally without redesigning the fabric or reducing analytics coverage. In a Juniper data center built on EVPN-VXLAN with Junos v24.4 leaf-spine roles, this separation helps ensure that Apstra can continuously validate intent, process streaming telemetry, and maintain device communications reliably at scale. Worker nodes therefore exist primarily to offload and scale operational agents and IBA services, improving performance and resilience for larger deployments.

NEW QUESTION # 62
Which element of an intent-based analytics (IBA) probe is used to specify the database objects to which the probe will apply?

A. node-edge relationship
B. database nodes
C. reference design schema
D. graph query

Answer: D

Explanation:
In Juniper Apstra's Intent-Based Analytics (IBA), a graph query defines the database objects and relationships that the probe will evaluate. This query specifies the exact scope of data (such as nodes, links, or metrics) to which the probe applies, enabling precise monitoring and validation against the intended state.

NEW QUESTION # 63
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JN0-481 Exam Questions - JN0-481 Guide Torrent & Data Center, Specialist (JNCIS-DC) Test Guide

Exam JN0-481 Exercise & Exam JN0-481 Cram Review

Juniper JN0-481 Exam Syllabus Topics:

Juniper Data Center, Specialist (JNCIS-DC) Sample Questions (Q58-Q63):

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