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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Data Center, Specialist (JNCIS-DC) |
| Exam Number: | JN0-481 |
| Passing Score: | Approximately 60–70% |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple-choice, Scenario-based questions, Multiple-response |
| Real Exam Qty: | Approximately 65 |
| Certificate Validity Period: | 3 years |
| Exam Price: | $300 USD (may vary by region) |
| Related Certifications: | JNCIP-DC JNCIE-DC JNCIA-DC |
| 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 |
>> Reliable JN0-481 Test Price <<
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NEW QUESTION # 51
You are using Juniper Apstra to manage your three-stage IP fabric. You have not enabled any IBA probes other than those that are enabled by default. You notice that both the Analytics tab and its child, Anomalies tab, have red indicators associated with them.
In this scenario, which condition is occurring in your network?
Answer: C
NEW QUESTION # 52
Which attribute enables Juniper Apstra to scale and manage thousands of devices with a single server instance?
Answer: D
Explanation:
The attribute that enables Juniper Apstra to scale and manage thousands of devices with a single server instance is that Apstra is a distributed state system. This means that Apstra uses a graph database to store the network topology and configuration data in a distributed and replicated manner across multiple server nodes. This allows Apstra to handle large-scale networks with high performance, reliability, and availability. Apstra also uses a stateful orchestration engine that ensures the network state is always consistent with the intent of the blueprint, which is the logical representation of the network design and behavior. Apstra can automatically detect and resolve any discrepancies between the desired and actual network state, as well as handle any changes or failures in the network. The other options are incorrect because:
A . Apstra is installed as a cloud resource is wrong because Apstra can be installed either as a cloud resource or as an on-premises resource. Apstra is available as a virtual machine image that can be deployed on various hypervisors, such as VMware ESXi, QEMU/KVM, Microsoft Hyper-V, or Oracle VirtualBox. Apstra can also be deployed on public cloud platforms, such as Amazon Web Services (AWS) or Microsoft Azure. However, the installation method does not affect the scalability of Apstra, which is determined by the distributed state system architecture.
B . Apstra is based on NGINX is wrong because Apstra is not based on NGINX, but on Python and Django. NGINX is a web server and reverse proxy that Apstra uses to serve the web user interface and the REST API. However, NGINX is not the core component of Apstra, and it does not affect the scalability of Apstra, which is determined by the distributed state system architecture.
C . Apstra is available as an OVA is wrong because Apstra is available as an OVF, not an OVA. An OVF (Open Virtualization Format) is a standard format for packaging and distributing virtual machine images. An OVA (Open Virtual Appliance) is a single file that contains the OVF and the virtual disk images. Apstra provides an OVF file that can be imported into various hypervisors, such as VMware ESXi, QEMU/KVM, Microsoft Hyper-V, or Oracle VirtualBox. However, the availability of Apstra as an OVF does not affect the scalability of Apstra, which is determined by the distributed state system architecture. Reference:
JUNIPER APSTRA ARCHITECTURE
Apstra Server Requirements/Reference
Juniper Networks Apstra 4.0 enhances the experience of users and operators
NEW QUESTION # 53
You have created a blueprint and are in the process of assigning systems. You require the leaf3-sonic device in the blueprint but do not want it to actively participate in the routing of the IP fabric.
In the Juniper Apstra UI, which two modes satisfy this requirement? (Choose two.)
Answer: B,D
Explanation:
Apstra deploy modes control how far a device progresses in the configuration lifecycle and whether it becomes active in the fabric. If you must keep leaf3-sonic present in the blueprint (modeled, cabled, and available for future use) but you do not want it to participate in IP-fabric routing, you use modes that keep the device not active.
Ready mode assigns the device to the blueprint and applies only "Ready (Discovery 2)" level configuration-hostnames, interface descriptions, and port speed/breakout settings-while explicitly keeping the device out of fabric routing. In this mode, Apstra does not configure routing/BGP or L3 interface addressing for the IP fabric, so the switch is staged and visible for validation (for example, LLDP wiring checks) but does not forward as part of the Clos underlay.
Undeploy mode removes the complete Apstra service configuration from the device. Operationally, this also ensures the device is not active in the fabric. It is commonly used when a device must be retained in the blueprint inventory/topology but should not be participating (for example, temporarily withdrawn, decommission preparation, or held as a spare).
By contrast, Deploy makes the device active (full rendered fabric configuration, including BGP), and Drain is a maintenance state used to gracefully remove traffic from an already-active device rather than a state for keeping it non-participatory from the outset.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/topic-map/device-config-lifecycle.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/topic-map/device-config-lifecycle.html
NEW QUESTION # 54
What does EVPN use lo identity which remote leaf device advertised the EVPN route?
Answer: D
Explanation:
EVPN uses a route distinguisher (RD) value to identify which remote leaf device advertised the EVPN route. An RD is a 64-bit value that is prepended to the EVPN NLRI to create a unique VPNv4 or VPNv6 prefix. The RD value is usually derived from the IP address of the PE that originates the EVPN route. By comparing the RD values of different EVPN routes, a PE can determine which remote PE advertised the route and which VRF the route belongs to.
NEW QUESTION # 55
You are using Juniper Apstra to design a data center fabric. In this scenario, which object type associates a specific vendor model to a logical device?
Answer: D
Explanation:
Device profiles are objects that associate a specific vendor model to a logical device in Juniper Apstra. Device profiles contain extensive hardware model details, such as form factor, ASIC, CPU, RAM, ECMP limit, and supported features. Device profiles also define how configuration is generated, how telemetry commands are rendered, and how configuration is deployed on a device. Device profiles enable the Apstra system to render and deploy the configuration according to the Apstra Reference Design.
NEW QUESTION # 56
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