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Title: [Mar 31, 2025] JN0-683 PDF Questions and Testing Engine With 67 Questions [Q22-Q41]

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 [Mar 31, 2025] JN0-683 PDF Questions and Testing Engine With 67 Questions
Updated Exam Engine for JN0-683 Exam Free Demo & 365 Day Updates


QUESTION 22Exhibit.Referring to the exhibit, why is the active source field blank for the entry that uses the 00:0c:29:e8:b7:39 MAC address?
 The EVPN route for this host does not have a valid next hop.
 The ARP lookup for this host has failed.
 The host for this entry is locally connected to leaf1.
 This entry is associated with a multicast EVPN route.
In this scenario, the active source field is blank for the MAC address 00:0c:29:e8:b7:39, indicating an issue with how this MAC entry is being processed within the EVPN/VXLAN environment.Step-by-Step Analysis:* Understanding the MAC Entry:* The active source field should normally indicate the source of the route advertisement for a specific MAC address within the EVPN. If it is blank, it suggests that there is a problem with how this entry is being learned or propagated.* Possible Issues:* Option A:If the EVPN route for this MAC address does not have a valid next hop, the entry might exist in the MAC table, but it will not have a valid path for forwarding, leading to a blank active source.* Option B:If the ARP lookup had failed, the entry might not even appear in the MAC table.However, the entry does exist, suggesting that ARP is not the primary issue here.* Option C:If the host were locally connected, the active source should reflect a local interface, but the field is blank, ruling out local connection as the cause.* Option D:Multicast EVPN routes typically do not appear in this manner in the MAC table, and this would not cause the active source to be blank.Conclusion:The most logical explanation is that the EVPN route for this host exists but does not have a valid next hop, leading to the absence of an active source. This is consistent with how EVPN routing tables work in a VXLAN environment, where the lack of a valid next hop would prevent proper route advertisement and forwarding for the specific MAC address.QUESTION 23Exhibit.Referring to the exhibit, Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) in a data center that uses an ERB architecture. What do you determine from the output?
 The traffic is failing because load balancing is not configured correctly.
 The traffic is entering the VXLAN tunnel.
 Host1 and Host2 are directly connected to leaf1.
 The irb.20 interface is not configured on leaf1.
Understanding the Problem:* Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) within an EVPN-VXLAN environment using ERB architecture.Analysis of the Exhibit:* The provided output includes information from the show route forwarding-table matching command for IP 10.1.2.1. The next hop is shown as vtep.32769, which indicates that the traffic destined for 10.1.2.1 is being forwarded into the VXLAN tunnel with the correct VTEP (VXLAN Tunnel Endpoint).Conclusion:* Option B:Correct-The traffic from Host1 is entering the VXLAN tunnel, as evidenced by the next hop pointing to a VTEP. However, the issue could lie elsewhere, possibly with the remote VTEP, routing configurations, or the receiving leaf/spine devices.QUESTION 24In your EVPN-VXAN environment, you want to prevent a multihomed server from receiving multiple copies ofBUM traffic in active/active scenarios. Which EVPN route type would satisfy this requirement?
 Type 8
 Type 7
 Type 4
 Type 5
* Understanding the Scenario:* In an EVPN-VXLAN environment, when using multi-homing in active/active scenarios, there’s a risk that a multihomed server might receive duplicate copies of Broadcast, Unknown unicast, and Multicast (BUM) traffic. This is because multiple VTEPs might forward the same BUM traffic to the server.* EVPN Route Types:* Type 4 Route (Ethernet Segment Route):This route type is used to advertise the Ethernet Segment (ES) to which the device is connected. It is specifically used in multi-homing scenarios to signal the ES and its associated Ethernet Tag to all the remote VTEPs. The Type 4 route includes information that helps prevent BUM traffic duplication in active/active multi-homing by using a split-horizon mechanism, which ensures that traffic sent to a multihomed device does not get looped back.* Explanation:* The Type 4 route is crucial for ensuring that in a multi-homed setup, particularly in an active/active configuration, BUM traffic does not result in duplication at the server. The route helps coordinate which VTEP is responsible for forwarding the BUM traffic to the server, thereby preventing duplicate traffic.Data Center References:* Type 4 routes are essential for managing multi-homing in EVPN to avoid the issues of BUM traffic duplication, which could otherwise lead to inefficiencies and potential network issues.QUESTION 25Exhibit.You are troubleshooting a DCI connection to another data center The BGP session to the provider is established, but the session to Border-Leaf-2 is not established. Referring to the exhibit, which configuration change should be made to solve the problem?
 set protocols bgp group overlay export loopbacks
 delete protocols bgp group UNDERLAY advertise-external
 set protocols bgp group PROVIDER export LOOPBACKS
 delete protocols bgp group OVERLAY accept-remote-nexthop
* Understanding the Configuration:* The exhibit shows a BGP configuration on a Border-Leaf device. The BGP group UNDERLAY is used for the underlay network, OVERLAY for EVPN signaling, and PROVIDER for connecting to the provider network.* The OVERLAY group has the accept-remote-nexthop statement, which is designed to accept the next-hop address learned from the remote peer as is, without modifying it.* Problem Identification:* The BGP session to Border-Leaf-2 is not established. A common issue in EVPN-VXLAN environments is related to next-hop reachability, especially when accept-remote-nexthop is configured.* In typical EVPN-VXLAN setups, the next-hop address should be reachable within the overlay network. However, the accept-remote-nexthop can cause issues if the next-hop IP address is not directly reachable or conflicts with the expected behavior in the overlay.* Corrective Action:* D. delete protocols bgp group OVERLAY accept-remote-nexthop:Removing this command will ensure that the device uses its own IP address as the next-hop in BGP advertisements, which is standard practice in many EVPN-VXLAN setups. This change should help establish the BGP session with Border-Leaf-2.Data Center References:* Proper handling of BGP next-hop attributes is critical in establishing and maintaining stable BGP sessions, especially in complex multi-fabric environments like EVPN-VXLAN. Removing accept- remote-nexthop aligns with best practices in many scenarios.QUESTION 26You are deploying multiple Juniper switches al the same location. Your switches are currently using the factory-default configuration.In this scenario, which two statements are correct? (Choose two.)
 The DHCP server configuration cannot provide Junos version requirements to DHCP clients.
 The switch will try to request an IP address from a DHCP server using all interfaces that are connected and are operational.
 The switch will try to request an IP address from a DHCP server using only the management interface.
 The DHCP server configuration can provide Junos version requirements to DHCP clients.
* DHCP Behavior in Factory-Default Configuration:* Option B:In the factory-default configuration, Juniper switches are designed to send DHCP requests on all operational interfaces. This behavior ensures that the switch can obtain an IP address for management and further configuration from any available DHCP server.* Option D:The DHCP server can provide additional configuration parameters, including the required Junos version. This allows for automated provisioning and ensures that the switch is running the correct software version.Conclusion:* Option B:Correct-The switch will use any operational interface to request an IP address via DHCP.* Option D:Correct-The DHCP server can specify Junos version requirements, enabling automated software management.QUESTION 27Exhibit.Referring tothe exhibit, which statement is correct?
 VNI 100 is not configured on the remote VTEP.
 The MAC address is unknown and not in the forwarding table of the remote VTEP.
 The remote VTEP is not responding.
 The MAC address is known but not reachable by the remote VTEP
* Analyzing the Exhibit Output:* The command ping overlay tunnel-type vxlan is used to test the VXLAN tunnel between two VTEPs (VXLAN Tunnel Endpoints). The output shows a warning about missing hash parameters, but more importantly, it displays the result: End-System Not Present.* Understanding the Response:* The message End-System Not Present indicates that the remote VTEP (192.168.2.20) did not find the MAC address 00:00:5E:00:53:CC in its forwarding table. This typically means that the MAC address is unknown to the remote VTEP, and as a result, it could not forward the packet to the intended destination.Conclusion:* Option B:Correct-The MAC address is unknown and is not in the forwarding table of the remote VTEP, which is why the system reports that the “End-System” is not present.QUESTION 28Exhibit.You want to enable the border leaf device to send Type 5 routes of local networks to the border leaf device in another data center. What must be changed to the configuration shown in the exhibit to satisfy this requirement?
 Move vrf-target target: 65000:1 to the evpn hierarchy.
 Add a VLAN configuration with an 13-interface to the tenant1 routing instance.
 Add encapsulation vxlan to the evpn hierarchy.
 Change: 5001 in the route-distinguisher to : 10010.
In this scenario, you want the border leaf device to advertise Type 5 EVPN routes to another border leaf in a different data center. Type 5 routes in EVPN are used to advertise IP prefixes, which means that for proper route advertisement, you need to configure the correct settings within the evpn hierarchy.Step-by-Step Analysis:* Understanding EVPN Type 5 Routes:* EVPN Type 5 routes are used to advertise IP prefixes across EVPN instances, which allow different data centers or networks to exchange routing information effectively.* VRF Target Setting:* The vrf-target configuration is crucial because it defines the export and import policies for the VRF within the EVPN instance. For EVPN Type 5 routes to be advertised to other border leaf devices, the vrf-target needs to be correctly configured under the evpn hierarchy, not just within the routing instance.Command to solve this:move vrf-target target:65000:1 to evpn* Other Options:* Option B:Adding a VLAN configuration would not address the requirement to advertise Type 5 routes.* Option C:Adding VXLAN encapsulation may be necessary for other scenarios but does not directly address the Type 5 route advertisement.* Option D:Changing the route-distinguisher will differentiate routes but does not impact the advertisement of Type 5 routes to other data centers.By moving the vrf-target to the evpn hierarchy, you enable the proper route advertisement, ensuring that the Type 5 routes for local networks are shared with other data center border leaf devices. This is aligned with best practices for multi-data center EVPN implementations, which emphasize the correct placement of routing policies within the EVPN configuration.QUESTION 29Exhibit.Referring to the configuration shown in the exhibit, assume that there is no external router present, and that the configuration is fabric-only.Which two statements are true about the example configuration? (Choose two.)
 VNI 10006is assigned to vlan 800 (irb.800).
 Devices in irb.400 (vlan 400) are not able to communicate directly with devices in routing instance Customer A.
 Devices in routing instance Customer A are able to communicate with devices in routing instance Customer B
 Devices in irb.400 (vlan 400) and irb.800 (vlan 800) are able to communicate over the fabric.
* Understanding the Configuration:* The exhibit shows configurations for two VRFs (Customer_A and Customer_B) with specific VLANs and VNIs assigned. Each VRF has interfaces (IRBs) associated with particular VLANs.* Communication Between VLANs and Routing Instances:* Option B:VLAN 400 (irb.400) is part of Customer_B, and there is no direct connection or routing between Customer_A and Customer_B in the configuration provided. Therefore, devices in irb.400 cannot communicate directly with devices in the Customer_A routing instance.* Option D:Since irb.400 (VLAN 400) and irb.800 (VLAN 800) are part of the same routing instance (Customer_B), they can communicate over the fabric using VXLAN encapsulation.Conclusion:* Option B:Correct-There is no direct communication between devices in irb.400 (Customer_B) and routing instance Customer_A.* Option D:Correct-Devices in VLAN 400 and VLAN 800 can communicate within the Customer_B routing instance over the fabric.QUESTION 30You are asked for TX and RX traffic statistics for each interface to which an application server is attached.The statistics need to be reported every five seconds. Using the Junos default settings, which telemetry method would accomplish this request?
 gNMI
 SNMP
 Native Sensors
 OpenConfig
* Telemetry Methods in Junos:* Telemetry is used to collect and report data from network devices. For high-frequency statistics reporting, such as every five seconds, you need a telemetry method that supports this level of granularity and real-time monitoring.* Junos Native Sensors:* Option C:Native Sensors in Junos provide detailed, high-frequency telemetry data, including TX and RX traffic statistics for interfaces. They are designed to offer real-time monitoring with customizable sampling intervals, making them ideal for the five-second reporting requirement.Conclusion:* Option C:Correct-Native Sensors in Junos are capable of providing the required high-frequency telemetry data every five seconds.QUESTION 31You are asked to configure telemetry on the OFX Series devices in your data center fabric. You want to use sensors that have a vendor-neutral data model Which type of sensor should you use in this scenario?
 JTI OpenConfig sensors
 JTI native sensors
 Python sensors
 analog sensors
* Telemetry in Data Centers:* Telemetry allows for real-time monitoring of network devices by collecting and exporting data such as interface statistics, routing table updates, and other key metrics.* Vendor-Neutral Data Models:* Option A:JTI (Junos Telemetry Interface) OpenConfig sensors use a vendor-neutral data model, which is important for ensuring compatibility across different network devices and systems.OpenConfig is an industry-standard model, which facilitates integration with various telemetry collection systems.Conclusion:* Option A:Correct-OpenConfig sensors provide a vendor-neutral solution for telemetry, ensuring broad compatibility and flexibility in data center environments.QUESTION 32You want to convert an MX Series router from a VXLAN Layer 2 gateway to a VXLAN Layer 3 gateway for VNI 100. You have already configured an IRB interface. In this scenario, which command would you use to accomplish this task?
 set protocols isis interface irb.100 passive
 set vlans VLAN-100 13-interface irb.100
 set bridge-domains VLAN-100 routing-interface irb.100
 set protocols ospf area 0.0.0.0 interface irb.100 passive
* Scenario Overview:* Converting an MX Series router from a VXLAN Layer 2 gateway to a VXLAN Layer 3 gateway involves transitioning the router’s functionality from simply bridging traffic within a VXLAN segment to routing traffic between different segments.* Key Configuration Requirement:* IRB (Integrated Routing and Bridging) Interface:An IRB interface allows for both Layer 2 switching and Layer 3 routing. To enable routing for a specific VNI (VXLAN Network Identifier), the IRB interface must be associated with the routing function in the corresponding bridge domain.* Correct Command:* C. set bridge-domains VLAN-100 routing-interface irb.100:This command correctly binds the IRB interface to the bridge domain, enabling Layer 3 routing functionality within the VXLAN for VNI 100. This effectively transitions the device from operating solely as a Layer 2 gateway to a Layer 3 gateway.Data Center References:* This configuration step is essential when converting a Layer 2 VXLAN gateway to a Layer 3 gateway, enabling the MX Series router to route between VXLAN segments.QUESTION 33You are asked to interconnect two of your company’s data centers across the IP backbone. Both data centers have their own unique IP space and do not require any bridging. In this scenario, which two actions would accomplish this task? (Choose two.)
 Configure a Type 2 EVPN route for each unique prefix.
 Configure peering for EVPN between border leaf nodes in each data center.
 Configure a Type 5 EVPN route for each unique prefix.
 Configure peering for EVPN between all leaf nodes within each data center.
* Interconnecting Data Centers:* The scenario requires interconnecting two data centers with unique IP spaces across an IP backbone. The key point is that bridging is not required, so Layer 3 routing methods must be used.* EVPN Configuration:* Option B:Establishing EVPN peering between the border leaf nodes in each data center is the most appropriate solution as it allows for exchanging routing information between the two data centers. This ensures that the routes are properly distributed without the need for L2 bridging.* Option C:Configuring Type 5 EVPN routes is necessary for advertising IP prefixes (Layer 3 routes) across the EVPN. Type 5 routes allow for the exchange of IP prefixes between the two data centers, enabling the necessary routing functionality without the need for bridging.Conclusion:* Option B:Correct-Peering between border leaf nodes sets up the necessary route exchange between data centers.* Option C:Correct-Type 5 EVPN routes are essential for exchanging Layer 3 prefixes between data centers.QUESTION 34You are asked to interconnect two of your company’s data centers across an IP backbone. Both data centers require Layer 2 and Layer 3 connectivity. In this scenario, which three actions would accomplish this task?(Choose three.)
 Advertise Type 2 EVPN routes across the DCI.
 Ensure border leaf nodes in each data center can exchange EVPN routes.
 Ensure there is a full mesh of VTEPs between all spine nodes within both data centers.
 Advertise Type 5 EVPN routes across the DCI.
 Ensure there is a full mesh of VTEPs between all leaf nodes within data centers.
* Layer 2 and Layer 3 Connectivity Requirements:* To interconnect two data centers across an IP backbone with both Layer 2 (L2) and Layer 3 (L3) connectivity, EVPN-VXLAN (Ethernet VPN with Virtual Extensible LAN) is the ideal solution.EVPN supports L2 VPNs while also enabling L3 connectivity across multiple locations.* Necessary EVPN Route Types:* Type 2 EVPN Routes:These routes are used to advertise MAC addresses for Layer 2 connectivity. They are essential for enabling seamless L2 communication across data centers.* Type 5 EVPN Routes:These routes are necessary for advertising IP prefixes for Layer 3 connectivity between data centers. They enable the exchange of L3 information across the IP backbone, ensuring routed traffic can reach its destination.* Border Leaf Nodes:* Border Leaf Nodes:Ensuring that the border leaf nodes (the entry and exit points for traffic between data centers) can exchange EVPN routes is critical for the correct dissemination of both L2 and L3 information across the data centers.Conclusion:* Option A:Correct-Type 2 EVPN routes are required for Layer 2 MAC address learning and communication across the DCI (Data Center Interconnect).* Option B:Correct-Border leaf nodes need to exchange EVPN routes to maintain connectivity between data centers.* Option D:Correct-Type 5 EVPN routes are essential for Layer 3 connectivity across the DCI.OptionsCandEare incorrect because they refer to establishing full mesh VTEPs (VXLAN Tunnel Endpoints) across all spine or leaf nodes, which is unnecessary for the scenario provided. The focus should be on border leaf nodes and appropriate route advertisements for L2 and L3 connectivity.QUESTION 35Which two statements are correct about an IP fabric? (Choose two.)
 All leaf devices can use the same AS number in an IP fabric without making any adjustments to the EBGP configuration
 The multipath multiple-as statement is required to enable ECMP if every device has a different AS number.
 Only a single point to point EBGP session is required between peers in an IP fabric.
 FBGP is only required to route mostrouting information to external devices outside the fabric.
* BGP in IP Fabric:* In an IP fabric, Border Gateway Protocol (BGP) is used to manage the routing between leaf and spine devices. Each device can have the same or different Autonomous System (AS) numbers depending on the network design.* Multipath Multiple-AS:* Option B:If every device in the fabric has a different AS number, then enabling Equal-Cost Multi-Path (ECMP) routing requires the multipath multiple-as statement. This configuration allows BGP to consider multiple paths across different AS numbers as equal cost, enabling efficient load balancing across the network.* Same AS Number Configuration:* Option A:It’s possible for all leaf devices to use the same AS number in an IP fabric, which simplifies the configuration. EBGP (External BGP) will still function correctly in this setup because BGP considers the peering relationship rather than strictly enforcing different AS numbers in this specific use case.Conclusion:* Option B:Correct-This statement is essential for enabling ECMP in a multi-AS environment.* Option A:Correct-Leaf devices can share the same AS number without needing special EBGP configuration.QUESTION 36You are deploying an IP fabric using EBGP and notice that your leaf devices areadvertising and receiving all the routes. However, the routes are not installed in the routing table and are marked as hidden.Which two statements describe how to solve the issue? (Choose two.)
 You need to configure as-override.
 You need to configure a next-hop self policy.
 You need to configure loops 2.
 You need to configure multipath multiple-as.
* Issue Overview:* The leaf devices in an IP fabric using eBGP are advertising and receiving all routes, but the routes are not being installed in the routing table and are marked as hidden. Thistypically indicates an issue with the BGP configuration, particularly with next-hop handling or AS path concerns.* Corrective Actions:* B. You need to configure a next-hop self policy:This action ensures that the leaf devices modify the next-hop attribute to their own IP address before advertising routes to their peers. This is particularly important in eBGP setups where the next-hop may not be directly reachable by other peers.* D. You need to configure multipath multiple-as:This setting allows the router to accept multiple paths from different autonomous systems (ASes) and use them for load balancing.Without this, the BGP process might consider only one path and mark others as hidden.* Incorrect Statements:* A. You need to configure as-override:AS-override is used to replace the AS number in the AS- path attribute to prevent loop detection issues in MPLS VPNs, not in a typical eBGP IP fabric setup.* C. You need to configure loops 2:There is no specific BGP command loops 2 relevant to resolving hidden routes in this context. It might be confused with allowas-in, which is used to allow AS path loops under certain conditions.Data Center References:* Proper BGP configuration is crucial in IP fabrics to ensure route propagation and to prevent routes from being marked as hidden. Configuration parameters like next-hop self and multipath multiple-as are common solutions to ensure optimal route installation and load balancing in a multi-vendor environment.QUESTION 37Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)
 An L3 interface (IRB) is required for each local VLAN.
 Symmetric routing requires MAC-VRF.
 Symmetric routing supports the EVPN service VLAN bundle.
 Symmetric routing requires an extra transit VNI for each VRF.
 Symmetric routing is less efficient than asymmetric routing.
* Symmetric IRB Routing with EVPN Type 2 Routes:* Symmetric Routing: In symmetric IRB (Integrated Routing and Bridging), routing occurs in both directions at the ingress and egress leaf nodes using the same routing logic. This is contrasted with asymmetric routing, where different routing logic is used depending on the direction of the traffic.* Required Components:* Option A:An L3 IRB interface is necessary for each VLAN that participates in routing, as it handles the Layer 3 processing for the VLAN.* Option B:MAC-VRF is required for symmetric routing to maintain a mapping of MAC addresses to the appropriate VRF, ensuring correct forwarding within the EVPN.* Option D:A transit VNI (Virtual Network Identifier) is required for each VRF to encapsulate the Layer 3 traffic as it traverses the network, allowing the IP traffic to be appropriately forwarded.Conclusion:* Option A:Correct-Each local VLAN needs an IRB interface for L3 processing.* Option B:Correct-MAC-VRF is necessary for handling MAC address resolution in symmetric routing.* Option D:Correct-Transit VNIs are required for routing VRF-specific traffic across the network.OptionsCandEare incorrect because:* C:Symmetric routing can work with various VLAN models, including single or multiple VLANs within an EVPN instance.* E:Symmetric routing is generally more efficient than asymmetric routing as it uses consistent routing logic in both directions.QUESTION 38Whatare two supported methods (or exporting data when using the Junos telemetry interface? (Choose two.)
 using REST
 using UDP
 using SNMP
 using gRPC
* Junos Telemetry Interface (JTI):* The Junos Telemetry Interface is a framework that allows network operators to collect real-time telemetry data from Juniper devices. This data can be used for monitoring, analytics, and network automation.* Data Export Methods:* Option B:UDP (User Datagram Protocol)is a lightweight, connectionless protocol used for exporting telemetry data quickly with minimal overhead. While it doesn’t guarantee delivery, it is suitable for high-speed data transfer where occasional packet loss is acceptable.* Option D:gRPC (gRPC Remote Procedure Call)is a modern, high-performance method for data export that supports streaming and remote procedure calls, making it ideal for more complex telemetry data use cases.Conclusion:* Option B:Correct-UDP is supported for exporting telemetry data.* Option D:Correct-gRPC is also supported, offering advanced streaming capabilitiesQUESTION 39Exhibit.You have a sample configuration for connecting two sites through EVPN-VXLAN by exchanging IP prefix routes.Referring to the exhibit, which two statements regarding the configuration are true? {Choose two.)
 The advertise direct-nexthop option enables the receiver to resolve the next-hop route using only information carried in the Type 5 route.
 The advertise direct-nexthop option enables the receiver to resolve the next-hop route using only information carried in the Type 2 route.
 The VNI must match on all devices for the same customer.
 The VNI should be unique on all devices for each customer site.
EVPN-VXLAN Configuration:* The configuration provided in the exhibit shows an EVPN-VXLAN setup where IP prefix routes are exchanged between two sites. The advertise direct-nexthop option and the VNI (Virtual Network Identifier) settings are crucial in this context.Advertise Direct-Nexthop:* Option A:The advertise direct-nexthop option ensures that the next-hop route is resolved using only the information carried in the EVPN Type 5 route. Type 5 routes are used for IP prefix advertisement in EVPN, which is key to enabling Layer 3 interconnectivity between different VXLAN segments.VNI Consistency:* Option C:For the same customer across different devices, the VNI must be consistent. This consistency ensures that all devices can correctly map traffic to the appropriate VXLAN segment, maintaining seamless Layer 2 and Layer 3 connectivity.QUESTION 40You are using E8GP peering in an underlay IP fabric. Which two statements are correct in this scenario?(Choose two.)
 EBGP peering requires an IGP protocol tor adjacency establishment.
 EBGP peering does not require an IGP protocol tor adjacency establishment.
 Every leaf node has one peering session to every spine node.
 Every leaf node has a peering session to every other leaf node.
* Understanding EBGP in an IP Fabric:* EBGP (External Border Gateway Protocol) is commonly used in IP fabrics to establish peering between routers, such as leaf and spine nodes, without relying on an Interior Gateway Protocol (IGP) like OSPF or IS-IS.* IGP Requirement for EBGP:* Option B:EBGP peering does not require an IGP for adjacency establishment. This is because EBGP peers are typically directly connected, and BGP establishes its own sessions without needing an underlying IGP.* Leaf-to-Spine Peering:* Option C:In a typical IP fabric, each leaf node establishes an EBGP session with every spine node. This ensures full connectivity between leaves and spines, facilitating efficient routing and forwarding within the fabric.Conclusion:* Option B:Correct-EBGP does not require an IGP for establishing peering sessions.* Option C:Correct-Each leaf node peers with every spine node, which is a standard practice in IP fabrics to ensure connectivity and redundancy.QUESTION 41You are asked to interconnect Iwo data centers using a method that provides EVPN Type 2 connectivity, is highly scalable, and limits VXLAN tunnels between border leafdevices. What will satisfy these requirements?
 over the top full-mesh interconnect
 EVPN Type 2 stretch
 IP VPN
 Type 2 seamless stitching
* Requirement Analysis:* The scenario requires a solution to interconnect two data centers that supports EVPN Type 2 connectivity. The solution must be highly scalable and must minimize the number of VXLAN tunnels between border leaf devices.* Understanding Type 2 Seamless Stitching:* Option D:Type 2 seamless stitchingis a method used in EVPN to provide Layer 2 connectivity (such as MAC address mobility) across different VXLAN segments. It is scalable because it allows only necessary tunnels to be established between border leaf devices, reducing the overhead of maintaining a full mesh of VXLAN tunnels.Conclusion:* Option D:Correct-Type 2 seamless stitching satisfies the requirement by enabling scalable, efficient interconnection of two data centers with minimal VXLAN tunnels. Loading …






	
	

Juniper JN0-683 Exam Syllabus Topics:
TopicDetailsTopic 1EVPN-VXLAN Signaling: This section assesses an understanding of Ethernet VPN (EVPN) concepts, including route types, multicast handling, and Multiprotocol BGP (MBGP). It also covers EVPN architectures like CRB and ERB, MAC learning, and symmetric routing.Topic 2Data Center Deployment and Management: This section assesses the expertise of data center networking professionals like architects and engineers, focusing on key deployment concepts. Topics include Zero-touch provisioning (ZTP), which automates device setup in data centers without manual input.Topic 3Layer 3 Fabrics: This section measures the knowledge of professionals managing IP-based networks in data centers. It covers IP fabric architecture and routing, ensuring candidates understand how the network is structured for scalability and how traffic is routed efficiently.Topic 4Data Center Interconnect: For Data Center Engineers, this part focuses on interconnecting data centers, covering Layer 2 and Layer 3 stretching, stitching fabrics together, and using EVPN-signaled VXLAN for seamless communication between data centers.

 

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