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NEW QUESTION # 48
Off-box agents are consuming too much CPU and memory on your Juniper Apstra controller. In this scenario, how would you solve this problem?
Answer: A
Explanation:
In Apstra 5.1, off-box agents and analytics services are delivered as containerized workloads that consume CPU and memory within the Apstra cluster. When these workloads are concentrated on the controller node, the controller can become resource-constrained, impacting overall responsiveness and scaling limits. The supported architectural solution is to add a worker node (worker VM) and allow Apstra to place offbox (and, if applicable, iba) containers on that worker. This increases cluster capacity and shifts runtime load away from the controller, which should remain focused on core control-plane and management functions.
Juniper's sizing guidance also treats worker nodes as the scalable unit for off-box agent growth: each VM node (controller or worker) supports a bounded number of off-box agents, and when one VM is insufficient, the prescribed approach is to increase capacity by adding worker nodes to the Apstra VM cluster. This method scales horizontally and avoids overloading the controller with operational containers.
While increasing CPU/memory on the controller might help temporarily, the documented design pattern for sustained growth is to distribute the off-box workloads across worker nodes. Switching to on-box agents is a different operational model and not the direct remediation for controller resource pressure in an off-box deployment.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-install-upgrade/topics/ref/apstra-server-resources.html
https://www.juniper.net/documentation/us/en/software/apstra5.0/apstra-user-guide/topics/topic-map/apstra-cluster-nodes.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/topic-map/apstra-cluster-nodes.html
NEW QUESTION # 49
You are creating a new template that will connect two rack based templates together. Which rack type should be used to accomplish this rask?
Answer: A
NEW QUESTION # 50
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
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 # 51
You are using Juniper Apstra to create security policies that create ACLs on the fabric devices. What are two valid objects that would be used within Apstra in this scenario? (Choose two.)
Answer: C,D
Explanation:
In Apstra 5.1, Security Policies express traffic-permit/deny intent between defined fabric endpoints, and Apstra compiles that intent into ACL enforcement on the appropriate switches (for example, on gateway interfaces for east-west segmentation and on border leaf interfaces for north-south controls). The objects you use to define that policy intent must correspond to fabric connectivity constructs that Apstra understands as endpoints in the blueprint's logical model.
Two such valid objects are Virtual Networks and Routing Zones. A virtual network represents a tenant segment (typically mapped into EVPN-VXLAN constructs such as VNI and associated IRB gateway when L3 is enabled). Policies between virtual networks are a common way to implement micro-segmentation or tier-based segmentation (web/app/db) within the same tenant boundary. A routing zone represents the L3 tenancy boundary (mapped to a VRF) and can be used to group and control connectivity at the tenant level, especially where policy needs to be expressed for aggregated tenant domains or for controls involving external connectivity.
"Domain name" and "application signature" are not endpoint objects for Apstra Security Policies in this context. They may exist in other security ecosystems, but Apstra's security intent model for ACL generation is based on topology and blueprint objects (routing zones, virtual networks, and endpoint definitions), which can then be rendered into Junos v24.4 firewall filter-style enforcement on the fabric devices.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/policy-security.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/routing-zones.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/virtual-networks.html
NEW QUESTION # 52
How does Apstra use Fabric Device Management to ensure consistency across the network?
Answer: A
NEW QUESTION # 53
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