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| Section | Objectives |
|---|---|
| Automation and Programmability | - Junos automation basics (scripts, commit scripts) - Network configuration consistency and automation concepts |
| Junos Data Center Switching | - Spanning Tree and alternatives in DC designs - QFX switch configuration and operation - VLANs, trunking, and bridging concepts |
| Data Center Architecture Fundamentals | - Spine-leaf (Clos) architecture design - Layer 2 and Layer 3 data center fabric concepts - Redundancy and high availability principles |
| Operations and Troubleshooting | - Monitoring and verifying EVPN-VXLAN fabrics - Troubleshooting routing and switching issues |
| Data Center Routing Protocols | - BGP in EVPN-based fabrics - OSPF and IS-IS in data center environments - Underlay vs overlay network design |
| EVPN-VXLAN Technologies | - EVPN control plane fundamentals - VXLAN data plane encapsulation - EVPN Type 2 and Type 5 routes |
>> Exam JN0-481 Introduction <<
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NEW QUESTION # 90
The servers attached to your Juniper Apstra managed data center fabric are running VMware.
You want to get the details about which VMs are attached to which leaf interface.
Referring to the exhibit, which statement is correct?
Answer: C
Explanation:
In Juniper Apstra, to see details about which VMs are attached to which leaf interface, Apstra requires integration with the Virtual Infrastructure Manager (VIM), such as VMware vCenter for ESXi environments. Without defining and integrating a VIM, the VMs tab (as shown in the exhibit) will not display any data, even if servers are connected and running.
NEW QUESTION # 91
You want to gracefully take a device out of service to perform an OS upgrade.
How would you accomplish this task using Juniper Apstra?
Answer: C
Explanation:
To gracefully take a device out of service in Juniper Apstra (such as for an OS upgrade), you must go to the Active tab, select the target device, and set its Deploy Mode to Drain. This action ensures traffic is safely rerouted and gracefully removed from the device before maintenance begins.
NEW QUESTION # 92
Which two statements are correct about a Juniper Apstra server? (Choose two.)
Answer: A,B
Explanation:
Apstra manages devices using IP connectivity over the management network, which is a Layer 3 relationship. Whether you are using on-box agents or off-box agents, the controller (or cluster) communicates with the fabric devices using IP reachability (for example, to exchange management traffic, retrieve discovery state, collect telemetry, and push configuration). This is why Layer 2 adjacency is not required between the Apstra server and the managed switches; the essential requirement is routable IP connectivity and appropriate access (credentials/agent connectivity) to the device management interfaces.
From a platform perspective, Apstra does not need a dedicated physical NIC per managed device. Instead, the server/VM requires connectivity to the management network through a single network adapter, and that interface can route to all managed devices. In a typical data center deployment, the Apstra controller VM sits on a management VLAN/subnet and reaches the entire fabric through routed management. This scales operationally: adding devices does not require adding additional server NICs; it only requires IP reachability and capacity planning for telemetry and agent workloads. Thus, the correct statements are that Apstra uses Layer 3 to communicate with managed devices and that it requires a single network adapter for that management connectivity model.
NEW QUESTION # 93
You want to add a configuration that is not supported by Juniper Apstra reference architecture using a configlet.
Which two configurations would be applicable in this scenario? (Choose two.)
Answer: A,B
Explanation:
A configlet is a configuration template that augments Apstra's reference design with non-native device configuration. They consist of one or more generators. Each generator specifies a NOS type (config style), when to render the configuration, and CLI commands (and file name as applicable).
Some applications for configlets include the following:
- Syslog
- SNMP access policy
- TACACS / RADIUS
- Management ACLs
- Control plane policing
- NTP
- Username / password
NEW QUESTION # 94
Which two statements are correct about repairing a Juniper Apstra cabling map before deploying your blueprint? (Choose two.)
Answer: A,B
Explanation:
The cabling 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 cabling map to verify and repair the cabling before deploying your blueprint. Based on the web search results, we can infer the following statements:
Apstra can use LLDP data from the spine-to-leaf fabric devices to update the connections in the cabling map. This is true because Apstra can collect LLDP data from the devices using the Generic Graph Collector processor and use it to update the cabling map automatically.
LLDP is a protocol that allows devices to exchange information about their identity, capabilities, and neighbors. Apstra can use LLDP data from the leaf devices to update the leaf-to-generic connections in the cabling map. This is true because Apstra can also collect LLDP data from the leaf devices and use it to update the connections to the generic devices, such as routers, firewalls, or servers. Generic devices are devices that are not managed by Apstra but are part of the data center fabric.
You must manually change the cabling map to update spine-to-leaf fabric links. This is false because Apstra can use LLDP data to update the spine-to-leaf fabric links automatically, as explained above. However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
You must manually change the cabling map to update leaf-to-generic links. This is false because Apstra can use LLDP data to update the leaf-to-generic links automatically, as explained above.
However, you can also manually change the cabling map to override the Apstra-generated cabling, if needed.
NEW QUESTION # 95
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