Which three statements are correct about property sets? (Choose three.)
Correct Answer: A,B,E
Property sets can be automatically imported with a configlet to provide reusable configuration variables. They use key/value pairs for variable substitution within configlets, enabling templated configuration. A single configlet can reference multiple property sets, allowing flexible and modular configuration inputs.
Question 62
What does clicking the indicated icon shown in the exhibit accomplish?
Correct Answer: B
In the Juniper Apstra Staged → Physical → Links view, clicking the indicated refresh-style icon fetches the most recent LLDP (Link Layer Discovery Protocol) data. This updates the cable map with the latest discovered physical connectivity information from the devices.
Question 63
A member of your organization made changes to a predefined interface map using Juniper Apstra. Which two statements are correct in this scenario? (Choose two.)
Correct Answer: A,B
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 can be either predefined or custom. A predefined interface map is one that ships with Apstra software and supports most qualified Juniper devices. A custom interface map is one that is created by the user to meet specific requirements. An interface map can be stored in either the global catalog or the blueprint catalog. The global catalog contains all the interface maps that are available for use in any blueprint. The blueprint catalog contains the interface maps that are imported from the global catalog and used in a specific blueprint.
Question 64
What does VXLAN use to uniquely label and identify broadcast domains?
Correct Answer: C
In a VXLAN overlay, each Layer 2 broadcast domain (the logical equivalent of a VLAN/bridge domain) is identified by a 24-bit VXLAN Network Identifier (VNI) carried in the VXLAN header. This VNI is what allows the overlay to scale far beyond traditional VLAN space (12-bit VLAN IDs), enabling up to ~16 million distinct segments. In an EVPN-VXLAN data center fabric, Junos v24.4 leaf switches operate as VTEPs and map local bridge domains (often associated with VLANs on server-facing ports) to a VNI. When traffic is sent across the routed underlay, the leaf encapsulates Ethernet frames into VXLAN packets and inserts the VNI so the receiving VTEP can place the frame into the correct broadcast domain on decapsulation. Apstra 5.1 abstracts this mapping through virtual networks and resource allocation: when you define a VXLAN-based virtual network, Apstra allocates a VNI from the appropriate pool and consistently programs the necessary constructs on all participating leaves. The key point is that VNI is the unique identifier in the VXLAN data plane used to label the broadcast domain across the IP fabric; VLAN IDs may exist locally at the edge for tagging, but the globally significant overlay identifier is the VNI. Verified Juniper sources (URLs): https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/topic-map/sdn-vxlan.html
Question 65
What is correct about the selected device shown in the exhibit?
Correct Answer: C
The exhibit shows node100 (Generic System) selected, with links from that generic system to two fabric leaf switches (for example, a leaf participating in an ESI pair and another leaf node). In Apstra 5.1, a Generic System represents an endpoint that is not managed as a network device by Apstra (such as a server, appliance, or host), but it is still modeled so Apstra can apply interface intent (LAG vs single link), connectivity templates, and virtual network attachments. Because the device is shown as a generic system connected on leaf-facing ports inside the fabric topology, this aligns with an internal generic system. Internal generic systems are used for servers or endpoints that reside "inside" the rack/fabric context and consume leaf switch ports as access-facing connections. This is the common representation for endpoints in EVPN-VXLAN data center designs, where the leaf switches provide the VLAN/VNI mapping and, if required, IRB gateway services within the tenant VRF (routing zone). An external generic system is typically used for devices outside the fabric boundary-most commonly external routers, firewalls, or upstream networks attached at border leafs-where the intent is external connectivity rather than server access. The selected node is neither a peer switch nor an access switch (those are network infrastructure roles), and the UI explicitly labels it as a Generic System, confirming the correct classification as an internal generic system.
