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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Data Center, Specialist (JNCIS-DC) |
| Exam Number: | JN0-481 |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | Approximately 65 |
| Certificate Validity Period: | 3 years |
| Passing Score: | Approximately 60–70% |
| Related Certifications: | JNCIP-DC JNCIA-DC JNCIE-DC |
| Exam Format: | Multiple-choice, Scenario-based questions, Multiple-response |
| Exam Price: | $300 USD (may vary by region) |
| Available Languages: | English |
| Recommended Training: | EVPN-VXLAN Learning Resources Juniper Data Center Training Courses |
| Exam Registration: | Pearson VUE Juniper Exams Juniper Certification Portal |
| 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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질문 # 89
Using Juniper Apstr
a. which component is defined in a template?
정답：C
설명：
According to the Juniper documentation1, a template is a configuration template that defines a network's policy intent and structure. A template can be either rack-based or pod-based, depending on the type and number of racks and pods in the network design. A template includes the following details:
Policies: These are the parameters that apply to the entire network, such as the overlay control protocol, the ASN allocation scheme, and the underlay type.
Structure: This is the physical layout of the network, such as the type and number of racks, pods, spines, and leaves. The structure also defines the leaf-to-spine interconnection, which is the number and type of links between the leaf and spine devices. The leaf-to-spine interconnection can be either single or dual, depending on the redundancy and bandwidth requirements.
Therefore, the correct answer is A. the leaf-to-spine interconnection. This is a component that is defined in a template, as it determines the physical connectivity of the network. The speed of the links, the number of spine devices, and the definition of IP pools are not components that are defined in a template, as they are either derived from the device profiles, the resource pools, or the blueprint settings. Reference: Templates Introduction | Apstra 4.2 | Juniper Networks
질문 # 90
What is the purpose of an interface map in Juniper Apstra?
정답：B
설명：
An interface map is a configuration template that maps interfaces between logical devices and physical hardware devices (represented with device profiles) while adhering to vendor specifications. An interface map specifies a connection between the interfaces of two devices, such as a leaf and a spine, a leaf and a server, or a leaf and an external gateway. An interface map can also specify port transformations, such as breaking out a 40 GbE port into four 10 GbE ports, or disabling unused ports. An interface map can be used to achieve the intended network configuration rendering and to enable features such as LAG, ESI-LAG, or MLAG.
질문 # 91
In the Juniper Apstra Ul, which three resources are assigned under the Resources menu?
(Choose three.)
정답：B,C,D
설명：
In the Juniper Apstra UI, the Resources menu allows you to create and manage global and local resources that are used for various elements of the network design and configuration. The Resources menu includes the following three types of resources that can be assigned to the network devices and virtual networks:
ASN pools: These are pools of autonomous system numbers (ASNs) that are used for the underlay routing protocol (EBGP) between the leaf and spine devices. You can create ASN pools with either 2-byte or 4-byte ASNs, and assign them to the logical devices in the blueprint. VNI pools: These are pools of virtual network identifiers (VNIs) that are used for the overlay network (VXLAN) between the end hosts. You can create VNI pools with a range of VNIs, and assign them to the virtual networks in the blueprint.
IP address pools: These are pools of IPv4 or IPv6 addresses that are used for various purposes in the network, such as the loopback addresses for the devices, the IP prefixes for the virtual networks, the host IP addresses for the end hosts, and the gateway IP addresses for the IRB interfaces. You can create IP address pools with a range of IP addresses, and assign them to the logical devices and virtual networks in the blueprint.
The following two types of resources are not assigned under the Resources menu:
VTEP pools: These are not resources that can be created or assigned by the user. VTEPs are VXLAN tunnel endpoints that are automatically generated by the Apstra server based on the loopback IP addresses of the devices. VTEPs are used as the source and destination IP addresses for the VXLAN tunnels in the overlay network.
Logical device pools: These are not resources that can be created or assigned by the user.
Logical device pools are groups of logical devices that share the same role, interface map, and resource assignments in the blueprint. Logical device pools are used to simplify the network design and configuration by applying the same settings to multiple devices.
질문 # 92
Which three statements are correct about property sets? (Choose three.)
정답：A,B,E
설명：
In Apstra 5.1, property sets are structured data objects (YAML/JSON) used to hold values that templates can consume at render time. Their most common use is with configlets, where property set key/value pairs are referenced as variables inside the template so Apstra can perform variable substitution during configuration generation. This directly supports statement B.
Property sets are also designed to be reusable. A single configlet can reference more than one property set (for example, one set for NTP servers and another for syslog collectors), allowing clean separation of data domains and easier lifecycle updates. This supports statement E.
Operationally, when you bring design content into a blueprint, the blueprint must have the required supporting objects available. In Apstra workflows, configlets that use property sets require those property sets to be present in the blueprint context (commonly accomplished by importing the relevant property set(s) from the catalog into the blueprint as part of bringing in the configlet and its dependencies). This aligns with statement A as the blueprint-level outcome: the property sets used by an imported configlet are imported/available in the blueprint for rendering.
Statements C and D are incorrect because property sets are not limited only to configlets (they are also used with Analytics probes), and the syntax is not vendor-specific-Apstra uses standard YAML/JSON structures independent of NOS.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/property-set-datacenter-design.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/concept/property-set-datacenter-design.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/ref/configlet-examples.html
질문 # 93
Referring to the exhibit, which statement is correct?
정답：C
설명：
A connectivity template is a set of configuration parameters that can be applied to a device or a group of devices in a blueprint. A blueprint is a logical representation of the network design and intent. A primitive is a basic unit of configuration that can be added to a connectivity template. A primitive can be a link, a peering, a policy, or a service. In the exhibit, the red-striped primitives indicate that further configuration is required for them to be compatible with the connectivity template design. The red stripes mean that the primitive is incomplete or invalid, and it needs to be edited or deleted. For example, the IP Link primitive needs to have the interface name and IP address specified for each end of the link.
질문 # 94
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