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| Section | Objectives |
|---|---|
| Data Center Architecture Fundamentals | - Redundancy and high availability principles - Spine-leaf (Clos) architecture design - Layer 2 and Layer 3 data center fabric concepts |
| Operations and Troubleshooting | - Monitoring and verifying EVPN-VXLAN fabrics - Troubleshooting routing and switching issues |
| Junos Data Center Switching | - QFX switch configuration and operation - Spanning Tree and alternatives in DC designs - VLANs, trunking, and bridging concepts |
| EVPN-VXLAN Technologies | - EVPN Type 2 and Type 5 routes - VXLAN data plane encapsulation - EVPN control plane fundamentals |
| Automation and Programmability | - Junos automation basics (scripts, commit scripts) - Network configuration consistency and automation concepts |
| Data Center Routing Protocols | - Underlay vs overlay network design - OSPF and IS-IS in data center environments - BGP in EVPN-based fabrics |
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질문 # 12
What is correct about the selected device shown in the exhibit?
정답：A
설명：
In the exhibit, the selected node node100 is labeled as a Generic System. In Juniper Apstra, a generic system represents an external device (such as a server, firewall, or third-party system) that connects to the fabric but is not managed as part of the internal fabric infrastructure.
Therefore, it is an external generic system.
질문 # 13
You have a virtual network that needs controlled access to other virtual networks in the same routing zone. Using the Juniper Apstra Ul. which feature would be used to accomplish this task?
정답：D
설명：
A security policy is the feature that would be used to accomplish the task of controlling access to other virtual networks in the same routing zone using the Juniper Apstra UI. A security policy allows you to define rules that specify which traffic is allowed or denied between different virtual networks, IP endpoints, or routing zones. A security policy can be applied to one or more virtual networks in the same routing zone, and it can use various criteria to match the traffic, such as source and destination IP addresses, protocols, ports, or tags. A security policy can also support DHCP relay, which enables the forwarding of DHCP requests from one virtual network to another. The other options are incorrect because:
A . interface policy is wrong because an interface policy is a feature that allows you to configure the interface parameters for the devices in a blueprint, such as interface names, speeds, types, or descriptions. An interface policy does not affect the access control between different virtual networks in the same routing zone.
B . anti-affinity policy is wrong because an anti-affinity policy is a feature that allows you to prevent certain devices or logical devices from being placed in the same rack or leaf pair in a blueprint. An anti-affinity policy is used to enhance the availability and redundancy of the network, not to control the access between different virtual networks in the same routing zone.
C . routing policy is wrong because a routing policy is a feature that allows you to configure the routing parameters for the devices in a blueprint, such as routing protocols, autonomous system numbers, route filters, or route maps. A routing policy does not affect the access control between different virtual networks in the same routing zone, unless the routing policy is used to filter or modify the routes exchanged between different routing zones. Reference:
Security Policy
Interface Policy
Anti-Affinity Policy
Routing Policy
질문 # 14
Which two actions are required during Juniper Apstra's deploy phase? (Choose two.)
정답：C,D
설명：
The deploy phase is the final step in the Juniper Apstra data center fabric design and deployment process. In this phase, you apply the Apstra-rendered configuration to the devices and verify the intent of the blueprint. Based on the web search results, we can infer the following actions are required during the deploy phase12:
Assign device profiles to the blueprint. This action associates a specific vendor model to each logical device in the blueprint. Device profiles contain extensive hardware model details, such as form factor, ASIC, CPU, RAM, ECMP limit, and supported features. Device profiles also define how configuration is generated, how telemetry commands are rendered, and how configuration is deployed on a device. Device profiles enable the Apstra system to render and deploy the configuration according to the Apstra Reference Design34.
Assign resources to the blueprint. This action allocates the physical devices, IP addresses, VLANs, and ASNs to the logical devices, networks, and routing zones in the blueprint. Resources can be assigned manually or automatically by the Apstra system. Assigning resources ensures that the blueprint has all the necessary elements to generate the configuration and deploy the fabric5 .
Assign user roles to the blueprint. This action is not required during the deploy phase. User roles are defined at the system level, not at the blueprint level. User roles determine the permissions and access levels of different users in the Apstra system. User roles can be system-defined or custom-defined .
Assign interface maps to the blueprint. This action is not required during the deploy phase. Interface maps are defined at the design phase, not at the deploy phase. Interface maps are objects that map the logical interfaces of a logical device to the physical interfaces of a device profile. Interface maps enable the Apstra system to generate the correct interface configuration for each device in the fabric . Reference:
Deploy
Deploy Device
Device Profiles
Juniper Device Profiles
Resources
질문 # 15
You want to assign resources to your blueprint during the deployment phase.
In this scenario, which statement is correct?
정답：A
설명：
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.
질문 # 16
You are using Juniper Apstra to create security policies that create ACLs on the fabric devices. What are two valid objects that would be used within Apstra in this scenario? (Choose two.)
정답：A,D
설명：
In Apstra 5.1, Security Policies express traffic-permit/deny intent between defined fabric endpoints, and Apstra compiles that intent into ACL enforcement on the appropriate switches (for example, on gateway interfaces for east-west segmentation and on border leaf interfaces for north-south controls). The objects you use to define that policy intent must correspond to fabric connectivity constructs that Apstra understands as endpoints in the blueprint's logical model.
Two such valid objects are Virtual Networks and Routing Zones. A virtual network represents a tenant segment (typically mapped into EVPN-VXLAN constructs such as VNI and associated IRB gateway when L3 is enabled). Policies between virtual networks are a common way to implement micro-segmentation or tier-based segmentation (web/app/db) within the same tenant boundary. A routing zone represents the L3 tenancy boundary (mapped to a VRF) and can be used to group and control connectivity at the tenant level, especially where policy needs to be expressed for aggregated tenant domains or for controls involving external connectivity.
"Domain name" and "application signature" are not endpoint objects for Apstra Security Policies in this context. They may exist in other security ecosystems, but Apstra's security intent model for ACL generation is based on topology and blueprint objects (routing zones, virtual networks, and endpoint definitions), which can then be rendered into Junos v24.4 firewall filter-style enforcement on the fabric devices.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/policy-security.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/routing-zones.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/virtual-networks.html
질문 # 17
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