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| Section | Objectives |
|---|---|
| Topic 1: Data Center Routing Protocols | - BGP in EVPN-based fabrics - Underlay vs overlay network design - OSPF and IS-IS in data center environments |
| Topic 2: Automation and Programmability | - Junos automation basics (scripts, commit scripts) - Network configuration consistency and automation concepts |
| Topic 3: Data Center Architecture Fundamentals | - Redundancy and high availability principles - Spine-leaf (Clos) architecture design - Layer 2 and Layer 3 data center fabric concepts |
| Topic 4: EVPN-VXLAN Technologies | - EVPN control plane fundamentals - VXLAN data plane encapsulation - EVPN Type 2 and Type 5 routes |
| Topic 5: Operations and Troubleshooting | - Monitoring and verifying EVPN-VXLAN fabrics - Troubleshooting routing and switching issues |
| Topic 6: Junos Data Center Switching | - QFX switch configuration and operation - VLANs, trunking, and bridging concepts - Spanning Tree and alternatives in DC designs |
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NEW QUESTION # 89
What are two system-defined user roles that are available in Juniper Apstra? (Choose two.)
Answer: C,D
Explanation:
Juniper Apstra provides four system-defined user roles that are available in the Apstra GUI environment. They are: administrator, device_ztp, viewer, and user1. Based on the web search results, we can infer the following statements:
viewer: This role includes permissions to only view various elements in the Apstra system, such as blueprints, devices, design, resources, external systems, platform, and others. Users with this role cannot create, edit, or delete any element12.
user: This role includes permissions to view and edit various elements in the Apstra system, such as blueprints, devices, design, resources, external systems, platform, and others. Users with this role cannot create or delete any element12.
authorized: This is not a system-defined user role in Juniper Apstra. It is a term used to describe users who have been authenticated by an external system, such as LDAP, Active Directory, TACACS+, or RADIUS3.
root: This is not a system-defined user role in Juniper Apstra. It is a term used to describe the superuser account on a Linux system, which has full access to all commands and files. Creating a user in the Apstra GUI does not provide that user access to the Apstra platform via SSH. To access the Apstra platform via SSH, you must create a local Linux system user4. Reference:
User / Role Management Introduction
User/Role Management (Platform)
AAA Providers
User Profile Management
NEW QUESTION # 90
You are creating a new security policy using Juniper Apstra.
Referring to the exhibit, which application point should you select to allow or deny traffic to or from a particular VRF?
Answer: D
Explanation:
In Apstra 5.1, multitenancy is modeled using routing zones, which map directly to the network operating system concept of a VRF. A VRF is an isolated Layer 3 routing instance with its own routing table and forwarding context, and Apstra's routing zone is the intent-based abstraction used to define and manage that isolation consistently across the fabric. Therefore, if your goal is to allow or deny traffic to or from a particular VRF, you must select Routing Zone as the security policy application point.
This choice enables you to express policy at the tenant boundary (VRF boundary) rather than at a single segment boundary. In EVPN-VXLAN data center fabrics, a tenant VRF commonly contains multiple virtual networks (VXLAN segments) and their associated IRB gateways on the leaf switches. Applying policy at the routing-zone level allows Apstra to compile intent and deploy enforcement consistently where traffic enters or exits that VRF context-typically as ACL constructs rendered as Junos firewall filters on the appropriate interfaces (for example, IRB interfaces for east-west controls or border interfaces for north-south controls).
By contrast, selecting Virtual Network targets a single segment (not the whole VRF), and Internal/External Endpoint targets specific endpoints or endpoint groups rather than the VRF-wide policy boundary. Hence, Routing Zone is the correct application point when policy scope is the VRF.
NEW QUESTION # 91
You have created a blueprint and are in the process of assigning systems. You require the leaf3-sonic device in the blueprint but do not want it to actively participate in the routing of the IP fabric.
In the Juniper Apstra UI, which two modes satisfy this requirement? (Choose two.)
Answer: B,C
Explanation:
Apstra deploy modes control how far a device progresses in the configuration lifecycle and whether it becomes active in the fabric. If you must keep leaf3-sonic present in the blueprint (modeled, cabled, and available for future use) but you do not want it to participate in IP-fabric routing, you use modes that keep the device not active.
Ready mode assigns the device to the blueprint and applies only "Ready (Discovery 2)" level configuration-hostnames, interface descriptions, and port speed/breakout settings-while explicitly keeping the device out of fabric routing. In this mode, Apstra does not configure routing/BGP or L3 interface addressing for the IP fabric, so the switch is staged and visible for validation (for example, LLDP wiring checks) but does not forward as part of the Clos underlay.
Undeploy mode removes the complete Apstra service configuration from the device. Operationally, this also ensures the device is not active in the fabric. It is commonly used when a device must be retained in the blueprint inventory/topology but should not be participating (for example, temporarily withdrawn, decommission preparation, or held as a spare).
By contrast, Deploy makes the device active (full rendered fabric configuration, including BGP), and Drain is a maintenance state used to gracefully remove traffic from an already-active device rather than a state for keeping it non-participatory from the outset.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra6.0/apstra-user-guide/topics/topic-map/device-config-lifecycle.html
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-user-guide/topics/topic-map/device-config-lifecycle.html
NEW QUESTION # 92
Which two statements about VXLAN VNIs are correct? (Choose two.)
Answer: B,C
Explanation:
VXLAN VNIs are virtual network identifiers that are used to identify and isolate Layer 2 segments in the overlay network. VXLAN VNIs have the following characteristics:
VNIs can have over 16 million unique values. This is because VXLAN VNIs are 24-bit fields that can range from 4096 to 16777214, according to the VXLAN standard. This allows VXLAN to support a large number of Layer 2 segments and tenants in the network. VNIs identify a broadcast domain. This is because VXLAN VNIs are used to group the end hosts that belong to the same Layer 2 segment and can communicate with each other using VXLAN tunnels. The VXLAN tunnels are established using the VTEP information that is distributed by EVPN. The VTEPs are VXLAN tunnel endpoints that perform the VXLAN encapsulation and decapsulation.
The VXLAN tunnels preserve the Layer 2 semantics and support the broadcast, unknown unicast, and multicast traffic within the same VNI.
NEW QUESTION # 93
An operator is working on a capacity-planning exercise. The operator needs to examine the pre-built time-series information regarding link utilization. In the Juniper Apstra UI, which top-level tab would the operator have to access to find this information?
Answer: A
Explanation:
In Apstra 5.1, capacity planning based on pre-built time-series telemetry (such as link utilization trends) is part of Intent-Based Analytics (IBA). IBA is where Apstra ingests streaming telemetry from fabric devices, stores it as time-series data, and presents it through built-in analytics views (dashboards/widgets) and probes. Because the question specifically calls out "pre-built time series information regarding link utilization," the correct UI location is the Analytics top-level tab within the blueprint.
The Active tab is primarily oriented to operational state and day-2 workflows (for example, viewing live state, queries, and device-level operational views). The Staged tab is where you modify intent (physical/virtual design, policies, catalog items) prior to committing and deploying. The Dashboard provides a high-level blueprint overview and navigation, but the drill-down and time-series analytics views that support trending and capacity analysis are accessed via Analytics.
In an EVPN-VXLAN fabric using Junos v24.4, link utilization time-series is particularly valuable because underlay congestion can degrade overlay performance (BGP convergence behavior, ECMP distribution effectiveness, and endpoint experience). Apstra's Analytics tab centralizes these metrics so operators can evaluate utilization baselines, identify sustained hot links, and support proactive actions (rebalancing, adding capacity, or adjusting design intent) without relying on ad-hoc per-device CLI polling.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-custom-telemetry-collection-guide/topics/concept/apstra-telemetry-and-intent-based-analytics.html
NEW QUESTION # 94
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