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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Data Center, Specialist (JNCIS-DC) |
| Exam Number: | JN0-481 |
| Related Certifications: | JNCIP-DC JNCIE-DC JNCIA-DC |
| Passing Score: | Approximately 60โ70% |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Exam Format: | Multiple-choice, Multiple-response, Scenario-based questions |
| Certificate Validity Period: | 3 years |
| Exam Price: | $300 USD (may vary by region) |
| Real Exam Qty: | Approximately 65 |
| Recommended Training: | EVPN-VXLAN Learning Resources Juniper Data Center Training Courses |
| Exam Registration: | Juniper Certification Portal Pearson VUE Juniper Exams |
| Sample Questions: | Juniper JN0-481 Sample Questions |
| Exam Way: | Online proctored or Pearson VUE test center |
| Pre Condition: | JNCIA-DC is recommended but not strictly required |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/data-center.html |
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NEW QUESTION # 72
You are creating a template using Juniper Apstr
a. In this scenario, what is a rack-based design compared to a pod-based design?
Answer: D
Explanation:
In Apstra 5.1, templates are used to describe the intended structure of a data center fabric. A rack-based template is used to build the common 3-stage Clos model (spines connected to racks containing leaf/top-of-rack switches and endpoints). In this design, you define the spine logical devices, select one or more rack types, specify rack counts, and define the intended connectivity between spines and racks. This directly models a leaf-spine IP fabric typically used for EVPN-VXLAN in modern data centers.
A pod-based template, by contrast, is explicitly used to build 5-stage Clos networks. In Apstra's terminology, a pod-based template is essentially a "template of templates": it combines one or more rack-based templates (each representing a 3-stage pod) and adds an additional superspine layer to interconnect those pods into a larger, scalable fabric. This is the architectural distinction: rack-based describes the leaf-spine pod, while pod-based describes the multi-pod superspine architecture.
For Junos v24.4 EVPN-VXLAN deployments, the difference matters operationally because 5-stage fabrics introduce additional tiers and scaling considerations (for example, superspine connectivity and expanded ECMP domains). Apstra's template hierarchy ensures consistent intent modeling across both 3-stage and 5-stage topologies without requiring operators to manually redesign the fabric logic each time they scale out.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/templates.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/task/template-create-pod-based.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/5-stage-clos.html
NEW QUESTION # 73
What are three phases of the Juniper Apstra data center life cycle? (Choose three.)
Answer: B,C,E
Explanation:
Juniper Apstra describes data center fabric management as a full lifecycle that spans three core phases: Design (Day 0), Deployment (Day 1), and Operations (Day 2). These phases map directly to how Apstra applies intent-based networking to a data center fabric.
In the Design phase, you model the intended architecture-templates (3-stage or 5-stage), rack types, logical devices, interface maps, resource pools, and high-level constructs such as routing zones and virtual networks. The objective is to capture intent in a vendor-agnostic way while ensuring consistency and validation before anything is pushed.
In the Deployment phase, Apstra turns the modeled intent into device-level implementation. This includes onboarding systems, assigning device profiles, allocating resources, rendering configurations, and pushing the resulting configuration to switches so the IP fabric becomes operational. This is where Junos v24.4 leaf/spine nodes receive underlay and overlay configuration generated from the blueprint.
In the Operational phase, Apstra continuously validates the running network against intent using telemetry and analytics (IBA), detects deviations and anomalies, supports maintenance workflows (such as drain), and provides troubleshooting tools (queries, time-series utilization, and configuration compliance).
"Configuration" and "installation" are activities that occur within the lifecycle, but the lifecycle phases themselves are Design, Deployment, and Operations.
NEW QUESTION # 74
You want to remove a leaf device from a Juniper Apstra blueprint permanently. What is the correct high-level sequence of steps?
Answer: B
Explanation:
To safely and permanently remove a leaf device from a Juniper Apstra blueprint, the device should first be set to Drain mode to gracefully move traffic away from it, then transitioned to Undeploy mode to remove its configuration from the device. Once undeployed, the device can be safely removed from the blueprint without causing disruption to the rest of the fabric.
NEW QUESTION # 75
You want to add a configuration that is not supported by Juniper Apstra reference architecture using a configlet.
Which two configurations would be applicable in this scenario? (Choose two.)
Answer: B,D
Explanation:
A configlet is a configuration template that augments Apstra's reference design with non-native device configuration. They consist of one or more generators. Each generator specifies a NOS type (config style), when to render the configuration, and CLI commands (and file name as applicable).
Some applications for configlets include the following:
- Syslog
- SNMP access policy
- TACACS / RADIUS
- Management ACLs
- Control plane policing
- NTP
- Username / password
NEW QUESTION # 76
Using the Juniper Apstra multitenancy capabilities, which approach will allow a tenant to interconnect two different routing zones?
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. 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 # 77
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