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| Certification Vendor: | Juniper |
|---|---|
| Exam Name: | Data Center, Specialist (JNCIS-DC) |
| Exam Number: | JN0-481 |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Exam Price: | $300 USD |
| Real Exam Qty: | 65 |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple Choice |
| Related Certifications: | JNCIA-DC JNCIS-DC |
| Sample Questions: | Juniper JN0-481 Sample Questions |
| Exam Way: | Pearson VUE online or test center delivery |
| Pre Condition: | JNCIA-DC certification is required before taking the JN0-481 exam. |
| Official Syllabus URL: | https://www.juniper.net/gb/en/training/certification/tracks/data-center/jncis-dc.html |
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NEW QUESTION # 48
What are two types of virtual networks defined inside Juniper Apstra software? (Choose two.)
Answer: C,D
Explanation:
Juniper Apstra supports two primary types of virtual networks within a data center fabric:
VLAN-based virtual networks - Used in simpler Layer 2 designs or collapsed architectures.
VXLAN-based virtual networks - Used in scalable, modern data center fabrics leveraging EVPN- VXLAN overlays for multi-tenant isolation and Layer 2 extension over Layer 3.
NEW QUESTION # 49
You want to gracefully take a device out of service to perform an OS upgrade. How would you accomplish this task using Juniper Apstra?
Answer: A
Explanation:
In Apstra 5.1, the correct operational method to gracefully remove a switch from service for maintenance is to set its Deploy Mode to Drain. Drain is a day-2 operational control that tells Apstra to adjust intent so the fabric can continue operating while the targeted device is logically taken out of service as much as the design allows. This is especially relevant in EVPN-VXLAN leaf-spine fabrics where taking down a spine or a leaf can disrupt underlay BGP adjacencies and overlay reachability if traffic is not shifted first.
This action is performed from the blueprint's Active view because Drain affects the currently deployed, running fabric state (not a staged design change). Selecting the device under Active and changing Deploy Mode to Drain initiates the workflow that prepares the device for maintenance by reducing its role in forwarding and/or withdrawing dependent services according to the blueprint's modeled redundancy (for example, shifting server-facing traffic to an MLAG/ESI peer where applicable, or reducing reliance on the device for transit). After the device is drained, an OS upgrade can be performed with less impact, and the device can later be returned to service by switching Deploy Mode back to Deploy and committing the change.
The "Upgrade" action is not the deploy-mode mechanism described for graceful removal; the key is Deploy Mode โ Drain from Active, which is explicitly intended for maintenance and decommissioning scenarios.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/task/device-drain.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-drain-mode/apstra-drain-mode-guide/topics/concept/apstra-drain-mode-activate-or-disable-drain.html
NEW QUESTION # 50
The analytics probe shown in the exhibit is enabled. The ge-0/0/5 interface on the "my-esl-001- leaf1" node receives an average of greater than 1 Mbps of traffic.
Which two statements are correct in this scenario? (Choose two.)
Answer: B,D
Explanation:
The probe is configured with a Range processor that raises an anomaly when the measured value (traffic utilization) exceeds the specified range. Since the interface exceeds 1 Mbps, a probe anomaly will be raised.
When a probe anomaly is raised, the Analytics tab indicator in the blueprint turns red to signal that an issue has been detected by intent-based analytics.
NEW QUESTION # 51
Multilenancy for applications is achieved by creating virtual networks (VNs) within which construct?
Answer: B
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.
NEW QUESTION # 52
The servers attached to your Juniper Apstra managed data center fabric are running VMware.
You want to get the details about which VMs are attached to which leaf interface.
Referring to the exhibit, which statement is correct?
Answer: B
Explanation:
In Juniper Apstra, to see details about which VMs are attached to which leaf interface, Apstra requires integration with the Virtual Infrastructure Manager (VIM), such as VMware vCenter for ESXi environments. Without defining and integrating a VIM, the VMs tab (as shown in the exhibit) will not display any data, even if servers are connected and running.
NEW QUESTION # 53
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