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NEW QUESTION # 71
What does VXLAN use to uniquely label and identify broadcast domains?
Answer: D
Explanation:
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
NEW QUESTION # 72
When editing a device configuration to install some manual changes, which procedure should be followed?
Answer: D
Explanation:
A configlet is a small piece of configuration that can be applied to a device or a group of devices to make persistent changes that are not overwritten by Apstra. Configlets can be used to install manual changes that are not part of the Apstra rendered configuration, such as custom commands, scripts, or features. Configlets can be created, edited, and deleted from the Apstra GUI or CLI.
NEW QUESTION # 73
You want to route between tenants in a multitenant environment in Juniper Apstr a. What are two ways to accomplish this task? (Choose two.)
Answer: A,B
Explanation:
In Apstra 5.1 multitenancy, tenants are modeled as routing zones, and each routing zone maps to a distinct VRF to provide strict Layer 3 isolation. Because each tenant's VRF is separate, "routing between tenants" is effectively inter-VRF routing. Apstra's routing-zone behavior emphasizes that inter-tenant routing is achieved via external systems: you connect each tenant/routing zone to an external router or firewall (often attached to border leafs), and that external device performs the policy-controlled inter-VRF routing between tenants. This approach is the most common because it centralizes security and compliance controls (stateful inspection, zone policies, NAT, logging) on the firewall/router while keeping the fabric clean and consistent.
A second method is to perform inter-VRF routing on a VTEP-capable border leaf that terminates the tenant VRFs. In EVPN-VXLAN designs, border leafs are frequently the demarcation where tenant VRFs connect to outside domains; when the same border leaf hosts multiple tenant VRFs and is designed to provide L3 services for them, it can act as the routing point between VRFs (subject to your design and security requirements). Junos v24.4 supports VRFs and policy constructs required for controlled route exchange and forwarding behavior, but Apstra's intent model still expects routing-zone isolation by default-so any inter-tenant connectivity should be explicitly designed and governed, typically at the border.
NEW QUESTION # 74
Juniper Apstra provides five different predefined user roles. Given this information, what is the main difference between the administrator and the user role?
Answer: A
Explanation:
Apstra role-based access control separates fabric operations from identity and authorization administration. The administrator role includes full permissions, including the ability to manage users and roles (for example, creating users, assigning permissions, and creating/cloning/editing custom roles where allowed). This enables administrators to govern who can access the system and what they are permitted to change across all blueprints and system settings.
The user role, in contrast, is designed for day-to-day fabric work: viewing and editing supported blueprint elements and operational objects within the scope permitted by the role, but not administering other users' access or modifying the role structure itself. In other words, a user can work on the network intent and operations, but cannot elevate privileges, change other users' roles, or otherwise manage user/role administration unless explicitly granted additional permissions through custom roles.
That makes option C the correct statement: the user role cannot make changes to other user types (that is, it lacks the permissions needed to administer identities/roles). Options A, B, and D do not reflect Apstra's RBAC model: roles are not primarily constrained "per blueprint" in that way, and users are not intended to modify other roles-those are administrator-level capabilities.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/concept/user-role-management.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/concept/user-role-management.html
https://www.juniper.net/documentation/us/en/software/apstra5.0/apstra-user-guide/topics/concept/user-role-management.html
NEW QUESTION # 75
Multilenancy for applications is achieved by creating virtual networks (VNs) within which construct?
Answer: D
Explanation:
A routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone.
NEW QUESTION # 76
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