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| Section | Weight | Objectives |
|---|---|---|
| Data Center Architectures | 20% | - IP Fabrics
|
| Apstra Design Phase | 15% | - Configuration and validation
|
| Intent-Based Analytics | 10% | - Analytics features
|
| Apstra Build and Deploy Phases | 15% | - Configuration management
|
| Blueprint Operations | 15% | - Troubleshooting
|
| Juniper Apstra Architecture | 15% | - Core components
|
| Data Center Multitenancy | 10% | - Integration and extension
|
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NEW QUESTION # 58
You are adding a new switch to Juniper Apstra software. The Managed Devices page shows the
"0 OS- Quarantined" status. What is the proper next step to make the device ready for use in a blueprint?
Answer: A
Explanation:
When a new switch is added to Juniper Apstra software, it initially shows the "0 OS-Quarantined" status, which means that the device is not yet managed by Apstra and has not been assigned to any blueprint. The proper next step to make the device ready for use in a blueprint is to acknowledge the device, which is a manual action that confirms the device identity and ownership. Acknowledging the device changes its status to "OOS-Ready", which means that the device is ready to be assigned to a blueprint and deployed.
NEW QUESTION # 59
You are considering the bridged overlay EVPN-VXLAN architecture. In this scenario, how many VLANs would be enabled in the VLAN-based service type at the MAC-VRF EVPN instance level?
Answer: A
Explanation:
In Junos EVPN, the service type determines how VLANs (broadcast domains) are mapped into EVPN constructs. With VLAN-based service, the mapping is one-to-one: a single VLAN (single broadcast domain) maps to a single EVPN instance (EVI), resulting in a separate bridge table per VLAN. When you implement EVPN-VXLAN in a bridged overlay (L2 extension over an L3 underlay), leaf devices act as VTEPs and encapsulate VLAN traffic into VXLAN using the associated VNI, but the service-type mapping rule still applies.
At the MAC-VRF hierarchy, you configure the EVPN-VXLAN parameters and choose the service type for that EVPN instance. If the service type selected is VLAN-based, then the EVI represents exactly one VLAN at that EVPN instance level. If you need multiple VLANs under the same MAC-VRF/EVI construct, Junos provides alternative service types (for example, VLAN-aware or VLAN-bundle) specifically intended to associate multiple VLANs with a single EVPN instance; that is not what VLAN-based service does.
Therefore, in a bridged overlay EVPN-VXLAN design using VLAN-based service at the MAC-VRF EVPN instance level, the correct answer is one VLAN. This remains true regardless of how many total VLANs exist across the fabric; each VLAN-based EVI handles a single VLAN.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/concept/evpn-based-services.html
https://www.juniper.net/documentation/us/en/software/junos/evpn/topics/concept/mac-vrf-routing-instance-overview.html
NEW QUESTION # 60
What is the purpose of an EVPN Ethernet segment identifier (ESI)?
Answer: B
Explanation:
An EVPN Ethernet Segment Identifier (ESI) is used to uniquely identify a multi-homed Ethernet segment, such as when multiple links from a device connect to the same EVPN fabric. Its primary purpose is to prevent loops within a LAG connection by ensuring only one active forwarding path while still enabling redundancy and load balancing.
NEW QUESTION # 61
Which element of an intent-based analytics (IBA) probe is used to specify the database objects to which the probe will apply?
Answer: C
Explanation:
In Apstra 5.1, Intent-Based Analytics (IBA) is built on Apstra's graph-based source of truth, where devices, interfaces, links, routing constructs, and services are represented as nodes with relationships. An IBA probe is effectively a processing pipeline (a directed acyclic graph of stages and processors) that ingests telemetry and then performs calculations, aggregations, and anomaly detection. To make any of that work, the probe must first determine which specific objects in the graph-for example, which leaf switches, which uplinks, which BGP sessions, or which interface counters-should be included in the analysis.
The probe element that selects those objects is the graph query. A graph query is evaluated against Apstra's graph database to return a set of matching nodes/relationships; those query results then become the scope for ingestion and subsequent processing. In other words, the graph query defines "apply this probe to these devices/interfaces/sessions," and it also provides the context used to bind telemetry identities (key-value pairs describing the metric source) to the correct logical objects in the blueprint. This is why Apstra documentation describes early probe processors producing outputs whose cardinality aligns with the number of results returned by the specified graph query(s). Without a graph query, the probe would not have a deterministic, intent-aligned target set for analytics, and the same probe definition could not be reliably reused across fabrics or blueprints.
NEW QUESTION # 62
You want to assign resources to your blueprint during the deployment phase.
In this scenario, which statement is correct?
Answer: A
Explanation:
To assign resources to a blueprint in Juniper Apstra, the resources (such as IP pools, ASN pools, VLANs, etc.) must already be created under global resources. Once created, these global resources can then be allocated to the blueprint during the deployment phase.
NEW QUESTION # 63
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