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| Section | Weight | Objectives |
|---|---|---|
| Apstra Build and Deploy Phases | 15% | - Configuration management
|
| Apstra Design Phase | 15% | - Configuration and validation
|
| Intent-Based Analytics | 10% | - Operational insights
|
| Data Center Architectures | 20% | - EVPN-VXLAN
|
| Blueprint Operations | 15% | - Troubleshooting
|
| Juniper Apstra Architecture | 15% | - Core components
|
| Data Center Multitenancy | 10% | - Multitenant design
|
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NEW QUESTION # 61
Exhibit.
Referring to the exhibit, how many broadcast domains will an Ethernet frame pass through when traversing the IP fabric from Server A to Server B?
Answer: B
Explanation:
Referring to the exhibit, the image shows a simplified diagram of an IP fabric network connecting two servers, labeled as Server A and Server B. The IP fabric is a network architecture that uses a Clos topology to provide high bandwidth, low latency, and scalability for data center networks. The IP fabric consists of spine and leaf devices that use BGP as the routing protocol and VXLAN as the overlay technology1.
A broadcast domain is a logical portion of a network where any device can directly transmit broadcast frames to other devices at the data link layer (OSI Layer 2). A broadcast frame is a frame that has a destination MAC address of all ones (FF:FF:FF:FF:FF:FF), which means that it is intended for all devices in the same broadcast domain. A broadcast domain is usually bounded by a router, which does not forward broadcast frames to other networks2.
In the exhibit, there are two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The first broadcast domain is the one that contains Server A and the leaf device that it is connected to. The second broadcast domain is the one that contains Server B and the leaf device that it is connected to. The IP fabric itself is not a broadcast domain, because it uses IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network. Therefore, the statement C is correct in this scenario.
The following three statements are incorrect in this scenario:
A . 1. This is not true, because there are not one, but two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The IP fabric itself is not a broadcast domain, because it uses IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network.
B . 4. This is not true, because there are not four, but two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The spine devices and the leaf devices that are not connected to the servers are not part of the broadcast domains, because they use IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network.
D . 3. This is not true, because there are not three, but two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The IP fabric itself is not a broadcast domain, because it uses IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network.
Reference:
IP Fabric Overview
Broadcast Domain - NetworkLessons.com
NEW QUESTION # 62
You are receiving cable, interface, and BGP anomalies from several devices within the data center fabric. In Juniper Apstra, how would you troubleshoot these types of errors?
Answer: A
Explanation:
The cable map is a graphical representation of the physical connections between the devices in the data center fabric. It shows the status of the cables, interfaces, and BGP sessions for each device. You can use the cable map to identify and troubleshoot any cable, interface, or BGP anomalies that may occur in the fabric. You can also filter the cable map by device name, device type, device role, device state, cable state, interface state, or BGP state.
NEW QUESTION # 63
What are two agent processes that operate within the Juniper Apstra device agent? (Choose two.)
Answer: A,D
Explanation:
In Apstra deployments that use on-box device agents, the agent package installs multiple processes inside the switch's NOS namespace to provide an isolated runtime environment for Apstra control and telemetry collection. Two of those processes are the Telemetry Agent and the Deployment Agent. The Telemetry Agent is responsible for collecting operational information from the device-such as LLDP neighbor details, routing-related state, and interface information-and sending that telemetry upstream to Apstra. This telemetry is a key input for closed-loop assurance in EVPN-VXLAN fabrics, where Apstra correlates underlay health (interfaces, neighbors, sessions) with overlay services.
The Deployment Agent is responsible for receiving configuration content pushed from Apstra and applying it on the device. In a Junos v24.4 fabric, this is the component that enables Apstra to converge device configuration to the blueprint's intent (for example, BGP underlay, EVPN signaling, and VXLAN constructs) without requiring manual CLI workflows. Both agents are typically idle most of the time, becoming active when Apstra needs to apply configuration changes or when significant state changes trigger telemetry updates.
Other listed options-"routing agent" and "authentication agent"-are not the named Apstra device-agent processes described for the on-box agent package in Juniper documentation.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra4.2/apstra-server-and-security-guide/topics/concept/apstra-device-agents.html
NEW QUESTION # 64
You are asked to deploy a collapsed fabric architecture.
Which two statements are correct about this deployment? (Choose two.)
Answer: A,C
Explanation:
In a collapsed fabric architecture, the leaf devices act as both leaf and spine switches:
Leaf devices are full-mesh connected - because there is no dedicated spine layer, leaves interconnect directly with each other in a full mesh.
Top-of-rack switches (leaves) provide VXLAN support - they handle both access (server connectivity) and overlay/EVPN-VXLAN functionality.
NEW QUESTION # 65
What are two agent processes that operate within the Juniper Apstra device agent? (Choose two.)
Answer: B,D
Explanation:
Within the Juniper Apstra device agent, two of the key processes are:
- Telemetry agent, which collects operational and state data from the device and reports it back to the Apstra server.
- Deployment agent, which applies configuration changes delivered by Apstra to the device.
NEW QUESTION # 66
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