JN0-481 Prüfungsfrage, JN0-481 Zertifizierungsprüfung

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Juniper JN0-481 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Junos Data Center, Specialist (JNCIS-DC)
Exam Number:	JN0-481
Available Languages:	English
Certificate Validity Period:	3 years
Exam Duration:	90 minutes
Real Exam Qty:	Approximately 65
Exam Price:	$300 USD (may vary by region)
Passing Score:	Approximately 60–70%
Related Certifications:	JNCIP-DC JNCIA-DC JNCIE-DC
Exam Format:	Scenario-based questions, Multiple-response, Multiple-choice
Recommended Training:	Juniper Data Center Training Courses EVPN-VXLAN Learning Resources
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

>> JN0-481 Prüfungsfrage <<

JN0-481 Studienmaterialien: Data Center, Specialist (JNCIS-DC) - JN0-481 Torrent Prüfung & JN0-481 wirkliche Prüfung

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Juniper JN0-481 Prüfungsplan:

Thema	Einzelheiten
Thema 1	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.
Thema 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.
Thema 3	Apstra Build and Deploy Phases: Covers fabric deployment tasks including agent installation, cable mapping, device states, deploy modes, and Blueprint UI usage, along with related monitoring and troubleshooting.
Thema 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.
Thema 5	Intent-Based Analytics: Covers Apstra's analytics tools including Graph Explorer, graph queries, and intent-based analytics probes for network monitoring, validation, and troubleshooting.
Thema 6	Data Center Multitenancy: Covers multi-tenant network management through routing zones, VRFs, virtual networks, connectivity templates, security policies, VMware integration, and Data Center Interconnect.

Juniper Data Center, Specialist (JNCIS-DC) JN0-481 Prüfungsfragen mit Lösungen (Q80-Q85):

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

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

Antwort: A,C

Begründung:
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

81. Frage
Referring to the exhibit, how do you display the IPv6 subnets lot all of the listed VXLANs?

A. IPv6 subnets ate shown when each VXLAN is selected individually.
B. An IPv6 Subnets column is not shown, indicating that no VXLAN has an assigned IPv6 subnet
C. Select all VXLANs, and the IPv6 Subnets column will appear
D. Select Columns, then select IPv6 Subnet.

Antwort: D

Begründung:
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).

82. Frage
What are three port group roles that you are allowed to assign to a logical device? (Choose three.)

A. Root
B. Spine
C. Empty
D. Leaf
E. Generic

Antwort: B,D,E

Begründung:
In Apstra, a logical device abstracts a physical switch's front-panel layout into one or more panels containing port groups. Each port group has a defined speed and one or more roles that describe how those ports are expected to be used in the fabric. These roles are essential because they constrain where ports may be consumed during rack type and template construction (for example, spine-facing vs server-facing vs generic connectivity).
Apstra-supported port group roles include fabric roles such as Spine and Leaf, and endpoint-facing roles such as Generic (commonly used for ports that connect to servers or external generic systems). Assigning Leaf and Spine roles ensures Apstra can correctly validate and render intent for uplinks and interconnects in a three-stage Clos or larger topologies. Assigning Generic indicates ports that can be used for non-fabric connections (such as server links, external routers modeled as generic systems, or other non-managed endpoints).
The options Empty and Root are not valid Apstra port group roles in the logical device model; Apstra uses other explicit role names (for example, Access, Peer, Unused, Generic, Leaf, Spine, Superspine depending on design type and version). In Junos v24.4 EVPN-VXLAN fabrics, getting these roles correct is foundational because Apstra relies on them to place underlay and overlay configuration onto the right interfaces with predictable results.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/concept/logical-devices.html
https://www.juniper.net/documentation/us/en/software/jvd/jvd-collapsed-dc-fabric-juniper-apstra-access-switches/configuration_walkthrough.html

83. Frage
Which two statements are correct about Juniper Apstra reference designs? (Choose two.)

A. The data center reference design supports only Junos devices.
B. The Freeform reference design supports only Junos devices.
C. The Freeform reference design requires knowledge of device CLI.
D. The data center reference design requires knowledge of device CLI.

Antwort: C,D

84. Frage
What is the purpose of an EVPN Ethernet segment identifier (ESI)?

A. To provide a hop count between devices
B. To identify Layer 2 frame types for filtering purposes
C. To prevent loops within a LAG connection
D. To specify a BGP community

Antwort: C

Begründung:
In EVPN multihoming, the Ethernet Segment Identifier (ESI) is the mandatory identifier used to represent a multihomed Ethernet segment-for example, a server or downstream switch that is dual-homed to two leaf devices using a single logical LAG/port-channel. By assigning the same ESI to the participating leaf-facing interfaces, the fabric recognizes those links as belonging to one Ethernet segment and can apply EVPN multihoming procedures consistently across the pair.
A key outcome of EVPN multihoming is loop prevention for multi-attached Layer 2 domains. EVPN uses the Ethernet segment concept (identified by the ESI) along with Designated Forwarder (DF) election to ensure that only the appropriate device forwards BUM (broadcast, unknown unicast, multicast) traffic toward the multihomed segment, avoiding duplicate forwarding and L2 loops. In addition, ESI-based multihoming supports resilient forwarding behavior during failures (for example, link or node loss) while maintaining correct advertisement and convergence in the EVPN control plane.
Therefore, among the provided options, the purpose that best matches how ESI is used operationally is to prevent loops within a LAG/multihomed connection, which is fundamental to EVPN-VXLAN data center designs on Junos v24.4 leaf devices and is also explicitly supported by Apstra when modeling ESI-based dual-homing.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/nce/evpn-lag-multihoming-guide/topics/concept/evpn-lag-guide-introduction.html
https://www.juniper.net/documentation/us/en/software/nce/evpn-lag-multihoming-guide/topics/task/evpn-lag-guide-esi-types-lacp.html
https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/topic-map/evpn-mh-df-election.html

85. Frage
......

JN0-481 Zertifizierungsprüfung: https://www.deutschpruefung.com/JN0-481-deutsch-pruefungsfragen.html

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