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| Section | Objectives |
|---|---|
| Junos Data Center Switching | - QFX switch configuration and operation - VLANs, trunking, and bridging concepts - Spanning Tree and alternatives in DC designs |
| Operations and Troubleshooting | - Monitoring and verifying EVPN-VXLAN fabrics - Troubleshooting routing and switching issues |
| Data Center Architecture Fundamentals | - Layer 2 and Layer 3 data center fabric concepts - Redundancy and high availability principles - Spine-leaf (Clos) architecture design |
| EVPN-VXLAN Technologies | - EVPN control plane fundamentals - VXLAN data plane encapsulation - EVPN Type 2 and Type 5 routes |
| Automation and Programmability | - Network configuration consistency and automation concepts - Junos automation basics (scripts, commit scripts) |
| Data Center Routing Protocols | - BGP in EVPN-based fabrics - OSPF and IS-IS in data center environments - Underlay vs overlay network design |
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NEW QUESTION # 45
In the Juniper Apstra Ul, which three resources are assigned under the Resources menu?
(Choose three.)
Answer: A,C,D
Explanation:
In the Juniper Apstra UI, the Resources menu allows you to create and manage global and local resources that are used for various elements of the network design and configuration. The Resources menu includes the following three types of resources that can be assigned to the network devices and virtual networks:
ASN pools: These are pools of autonomous system numbers (ASNs) that are used for the underlay routing protocol (EBGP) between the leaf and spine devices. You can create ASN pools with either 2-byte or 4-byte ASNs, and assign them to the logical devices in the blueprint. VNI pools: These are pools of virtual network identifiers (VNIs) that are used for the overlay network (VXLAN) between the end hosts. You can create VNI pools with a range of VNIs, and assign them to the virtual networks in the blueprint.
IP address pools: These are pools of IPv4 or IPv6 addresses that are used for various purposes in the network, such as the loopback addresses for the devices, the IP prefixes for the virtual networks, the host IP addresses for the end hosts, and the gateway IP addresses for the IRB interfaces. You can create IP address pools with a range of IP addresses, and assign them to the logical devices and virtual networks in the blueprint.
The following two types of resources are not assigned under the Resources menu:
VTEP pools: These are not resources that can be created or assigned by the user. VTEPs are VXLAN tunnel endpoints that are automatically generated by the Apstra server based on the loopback IP addresses of the devices. VTEPs are used as the source and destination IP addresses for the VXLAN tunnels in the overlay network.
Logical device pools: These are not resources that can be created or assigned by the user.
Logical device pools are groups of logical devices that share the same role, interface map, and resource assignments in the blueprint. Logical device pools are used to simplify the network design and configuration by applying the same settings to multiple devices.
NEW QUESTION # 46
In the EVPN-VXLAN data center fabric bridged overlay architecture shown in the exhibit, the servers are connected to Lead and Leat6 using the same virtual network identifier (VNI). Which two statements are correct in this scenario? (Choose two.)
Answer: B,D
Explanation:
In the EVPN-VXLAN data center fabric bridged overlay architecture shown in the exhibit, the servers are connected to Leaf1 and Leaf6 using the same virtual network identifier (VNI). This means that the servers belong to the same Layer 2 domain and can communicate with each other using VXLAN tunnels across the fabric. The underlay network provides the IP connectivity between the leaf and spine devices, and it uses EBGP as the routing protocol. Therefore, the following two statements are correct in this scenario:
Loopback IPv4 addresses must be advertised into the EBGP underlay from leaf and spine devices. This is because the loopback addresses are used as the source and destination IP addresses for the VXLAN tunnels, and they must be reachable by all the devices in the fabric.
The loopback addresses are also used as the router IDs and the BGP peer addresses for the EBGP sessions.
The underlay EBGP peering's must be established between leaf and spine devices. This is because the EBGP sessions are used to exchange the underlay routing information and the EVPN routes for the overlay network. The EBGP sessions are established using the loopback addresses of the devices, and they follow a spine-and-leaf topology, where each leaf device peers with all the spine devices, and each spine device peers with all the leaf devices.
NEW QUESTION # 47
Juniper Apstra provides five different predefined user roles. Given this information, what is the main difference between the administrator and the user role?
Answer: D
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 # 48
The analytics probe shown in the exhibit is enabled. The ge-0/0/5 interface on the "my-esl-001- leaf1" node receives an average of greater than 1 Mbps of traffic.
Which two statements are correct in this scenario? (Choose two.)
Answer: C,D
Explanation:
The probe is configured with a Range processor that raises an anomaly when the measured value (traffic utilization) exceeds the specified range. Since the interface exceeds 1 Mbps, a probe anomaly will be raised.
When a probe anomaly is raised, the Analytics tab indicator in the blueprint turns red to signal that an issue has been detected by intent-based analytics.
NEW QUESTION # 49
You are trying to deploy a five-stage template to a blueprint as shown in the exhibit. You cannot see your template name in the list of available templates.
In this scenario, which statement is correct?
Answer: C
Explanation:
In Apstra 5.1, templates are organized by template type, and the Create Blueprint screen can filter the template list by those types. A five-stage Clos design in Apstra is represented as a pod-based template (multi-pod fabric with an additional tier such as super-spines to interconnect pods). Because of that, a five-stage template will only appear in the template selector when the Pod Based filter is chosen. If the filter is set to Rack Based or Collapsed, Apstra hides pod-based templates because those types correspond to different topology classes: rack-based aligns with a three-stage leaf-spine pod, while collapsed aligns with a spine-less topology pattern.
This behavior is by design to prevent selecting an incompatible template for the intended topology. The template name itself does not need to contain "five-stage"; Apstra determines its type from how the template was created and stored in the catalog. Also, five-stage templates are not limited to Freeform blueprints-five-stage is a data center fabric topology choice, and it is supported within the data center reference design workflows when the appropriate template type is selected.
So, to make the five-stage template visible and selectable, choose Pod Based in the template filter.
NEW QUESTION # 50
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