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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Data Center, Specialist (JNCIS-DC) |
| Exam Number: | JN0-481 |
| Related Certifications: | JNCIA-DC JNCIP-DC JNCIE-DC |
| Exam Duration: | 90 minutes |
| Passing Score: | Approximately 60–70% |
| Exam Format: | Scenario-based questions, Multiple-choice, Multiple-response |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | Approximately 65 |
| Available Languages: | English |
| Exam Price: | $300 USD (may vary by region) |
| Recommended Training: | Juniper Data Center Training Courses EVPN-VXLAN Learning Resources |
| 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 |
To let the clients be familiar with the atmosphere and pace of the real JN0-481 exam we provide the function of stimulating the exam. In such a way, our candidates will become more confident by practising on it. And our expert team updates the JN0-481 Study Guide frequently to let the clients practice more. So the quality of our JN0-481 practice materials is very high and we can guarantee to you that you will have few difficulties to pass the exam.
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NEW QUESTION # 64
You are performing an upgrade to your switches in your network. You want to ensure that the upgrade can be performed without interrupting traffic. In the Juniper Apstra UI, which deploy mode should be used to accomplish this task?
Answer: C
Explanation:
In Apstra, Deploy Mode = Drain is the operational mechanism used to gracefully remove a switch from active forwarding before performing maintenance such as an OS upgrade. Drain mode is specifically intended to drain traffic while preserving fabric stability, so that maintenance can be executed with minimal to no application impact, provided the fabric design has sufficient redundancy (for example, ECMP in the underlay and dual-homing/ESI for server attachments). In an EVPN-VXLAN IP fabric, taking a leaf or spine abruptly out of service can cause transient loss of reachability as underlay adjacencies reconverge and the overlay recalculates paths. By placing the device into Drain, Apstra adjusts intent so that traffic is shifted away from the device as much as possible, reducing dependency on it before the upgrade begins.
This is different from Undeploy, which removes Apstra-rendered configuration and is generally used for decommissioning; if a device is carrying traffic, Apstra guidance is to drain first. Ready is a pre-deploy state used in lifecycle workflows, not a maintenance traffic-shifting mode. Deploy keeps the device fully participating. Therefore, for a maintenance window where the goal is "upgrade with minimal interruption," the correct mode is Drain, then perform the Junos v24.4 upgrade, and finally return the device to Deploy.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-drain-mode/apstra-drain-mode.pdf
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/topic-map/deploy-mode-update-datacenter.html
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/topic-map/device-config-lifecycle.html
NEW QUESTION # 65
What is the purpose of an interface map in Juniper Apstra?
Answer: D
Explanation:
According to the Juniper documentation1, 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. Therefore, the correct answer is B. An interface map specifies a connection between the interfaces of two devices. Reference: Interface Maps (Datacenter Design)
NEW QUESTION # 66
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: C,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 # 67
Which statement is true when onboarding a Juniper Networks device using a Juniper Apstra ZTP server?
Answer: B
Explanation:
The ztp.Json file on the Apstra ZTP server contains the configuration parameters for each device that is onboarded using ZTP. One of the parameters is the State, which can be one of the following values: init, ready, in_progress, done, error, or disabled. The State indicates the current status of the device in the ZTP process. For example, if the State is ready, it means that the device is ready to be onboarded by the Apstra ZTP server. If the State is done, it means that the device has completed the ZTP process and is managed by the Apstra server. The State can be manually set or changed in the ztp.Json file to control the behavior of the device during ZTP.
NEW QUESTION # 68
You are receiving cable, interface, and BGP anomalies from several devices within the data center fabric. In Juniper Apstra, how would you troubleshoot these types of errors?
Answer: A
Explanation:
The cable map is a graphical representation of the physical connections between the devices in the data center fabric. It shows the status of the cables, interfaces, and BGP sessions for each device. You can use the cable map to identify and troubleshoot any cable, interface, or BGP anomalies that may occur in the fabric. You can also filter the cable map by device name, device type, device role, device state, cable state, interface state, or BGP state.
NEW QUESTION # 69
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