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質問 # 39
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?
正解：C
解説：
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.
質問 # 40
Which two statements are correct about repairing a Juniper Apstra cabling map before deploying your blueprint? (Choose two.)
正解：C、D
解説：
The cabling 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 cabling map to verify and repair the cabling before deploying your blueprint. Based on the web search results, we can infer the following statements:
Apstra can use LLDP data from the spine-to-leaf fabric devices to update the connections in the cabling map. This is true because Apstra can collect LLDP data from the devices using the Generic Graph Collector processor 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 LLDP data from the leaf devices to update the leaf-to-generic connections in the cabling map. This is true because Apstra can also collect LLDP data from the leaf devices and use it to update the connections to the generic devices, such as routers, firewalls, or servers. Generic devices are devices that are not managed by Apstra but are part of the data center fabric.
You must manually change the cabling map to update spine-to-leaf fabric links. This is false because Apstra can use LLDP data to update the spine-to-leaf fabric links automatically, as explained above. However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
You must manually change the cabling map to update leaf-to-generic links. This is false because Apstra can use LLDP data to update the leaf-to-generic links automatically, as explained above.
However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
質問 # 41
What is the purpose of an interface map in Juniper Apstra?
正解：B
解説：
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.
質問 # 42
You are building a blueprint using Juniper Apstra and must change the cable map to match the physical environment. Where in the blueprint UI is this task accomplished?
正解：C
解説：
In Apstra 5.1, the cabling map is part of the blueprint's intended physical topology. Cable-map edits are performed in the Staged workspace because Staged is where you modify intent (what the fabric should look like) before committing those changes and deploying them. The Staged → Physical → Links view provides both a tabular and topology-oriented representation of spine-to-leaf and other physical connections. When Apstra auto-assigns interfaces during initial build, the logical mapping may not match the real patching in the data center. The cabling map editor allows you to override interface names (and where applicable, link addressing metadata) so the blueprint accurately reflects the actual patch panel and switchport usage.
This accuracy is critical in a Junos v24.4 leaf-spine fabric because underlay correctness depends on the real physical adjacencies: link membership, LAG expectations (where used), and the resulting BGP neighbor relationships that carry EVPN signaling for VXLAN overlays. By updating the cabling map in Staged, you ensure Apstra can correctly validate neighbor discovery, verify intent, and produce consistent device configuration aligned to the real-world wiring. After making the cabling corrections, you commit the staged changes and then deploy/apply so that Apstra's intent and the running network converge. This work is not performed under Active (which reflects deployed state) and is not a function of Connectivity Templates (which are for endpoint/service attachment rather than fabric cabling).
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.0/apstra-user-guide/topics/topic-map/cabling-map-edit-datacenter.html
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/topic-map/cabling-map-edit-datacenter.html
https://www.juniper.net/documentation/us/en/software/jvd/jvd-dcfabric-5-stage/configuration_walkthrough.html
質問 # 43
In the Juniper Apstra design phase, which object dictates port count, port speed, and how the ports would be used?
正解：A
解説：
Interface maps are objects that map interfaces between logical devices and physical hardware devices in the Juniper Apstra design phase. They dictate port count, port speed, and how the ports would be used for achieving the intended network configuration rendering. Interface maps also allow you to select device ports, transformations, and interfaces, provision breakout ports, and disable unused ports.
質問 # 44
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P.S. JapancertがGoogle Driveで共有している無料かつ新しいJN0-481ダンプ：https://drive.google.com/open?id=1Q3Y2FSuJKCzXP6qPT-mVCQnfPi_MGXaO