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NEW QUESTION # 88
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: D
NEW QUESTION # 89
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: D
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 # 90
You are allowed to assign tags for which three objects? (Choose three.)
Answer: A,C,D
Explanation:
In Juniper Apstra 5.1, tags are a lightweight metadata mechanism used to classify objects and enable conditional automation (for example, driving dynamic configlets or simplifying filtering/searching in the UI). Apstra supports tagging several blueprint-operational objects that commonly participate in day-1/day-2 workflows.
Virtual networks can be tagged so operators can group, search, and apply automation consistently across sets of segments. This is useful in EVPN-VXLAN fabrics where virtual networks represent VLAN- or VXLAN-backed broadcast domains and you may want policies or configlet logic to apply to all "finance" or "pci" segments as a group.
Interfaces can be tagged directly within a blueprint (for example, leaf access ports, uplinks, or specific border-facing ports). Interface tags are often used to drive template-based configuration behavior and to simplify operational actions across many ports without relying on fragile naming conventions.
Generic systems (internal or external) can also be tagged. Apstra documentation explicitly describes using tags to specify roles for internal generic systems, enabling you to differentiate server types or attachment roles and then apply the correct intent (connectivity templates, VN attachments, or policies) in a repeatable way.
By contrast, property sets are structured data objects used for parameterization (YAML/JSON values for templates/probes), and device profiles describe hardware/NOS capabilities; they are not the standard blueprint objects for tag assignment in this scenario.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/task/tag-virtual-network-update.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/tag-interface-add-remove-datacenter.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/internal-generic-system-create.html
NEW QUESTION # 91
Which Root Cause Identifier is currently supported in Juniper Apstra software?
Answer: D
Explanation:
In Juniper Apstra 5.1, Root Cause Identification (RCI) is implemented with a currently supported model focused on connectivity. Practically, this means RCI is designed to take telemetry and state learned from the fabric (for example, interface operational status, LLDP neighbor information, and routing session status) and correlate those signals to determine the most likely underlying cause of a connectivity-impacting event. Within an EVPN-VXLAN IP fabric, many operational symptoms can appear similar at the service layer (endpoints cannot reach each other, routes disappear, overlays degrade), but RCI narrows the problem by correlating evidence across the underlay and control plane.
The "connectivity" RCI model targets common failure scenarios that directly break device-to-device reachability, such as a broken link, a miscabled link (wrong LLDP neighbors), or an operator-disabled interface. These conditions often cascade into higher-level symptoms, including BGP sessions dropping over affected links. With Junos v24.4-based leaf-spine fabrics, maintaining stable underlay connectivity is foundational for EVPN signaling and VXLAN forwarding; therefore, Apstra's connectivity-focused RCI helps operators rapidly isolate whether the primary fault lies in physical adjacency, cabling/neighbor correctness, or administrative shutdown-reducing mean time to repair by pointing to the most probable root cause rather than only listing alarms.
NEW QUESTION # 92
Juniper Apstra has indicated an anomaly with respect to cabling. What are two ways to remediate the issue? (Choose two.)
Answer: A,D
Explanation:
A cabling anomaly is an issue that occurs when the physical connections between the devices in the data center fabric do not match the expected connections based on the Apstra Reference Design.
A cabling anomaly can cause problems such as incorrect routing, suboptimal traffic flow, or device isolation.
To remediate the issue, you can use one or both of the following methods:
Manually edit the cabling map. This allows you to override the Apstra-generated cabling and specify the correct connections between the devices.
You can use the Apstra UI or the Apstra CLI to edit the cabling map and apply the changes to the fabric.
Have Apstra autoremediate the cabling map using LLDP. This allows Apstra to collect LLDP data from the devices and use it to update the cabling map automatically.
LLDP is a protocol that allows devices to exchange information about their identity, capabilities, and neighbors. Apstra can use the LLDP data to detect and correct any cabling errors in the fabric.
NEW QUESTION # 93
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