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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | JNCIP-DC Data Center, Professional |
| Exam Number: | JN0-683 |
| Real Exam Qty: | Approximately 65 questions |
| Related Certifications: | JNCIE-DC JNCIS-DC |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Exam Price: | Approximately $300 USD (varies by region) |
| Exam Duration: | 90 minutes |
| Passing Score: | Scaled score (not publicly fixed) |
| Exam Format: | Scenario-based questions, Multiple choice |
| Recommended Training: | Juniper Networks Training & Certification Data Center, Professional (JNCIP-DC) Training Path |
| Exam Registration: | Juniper Certification Portal Pearson VUE Exam Registration |
| Sample Questions: | Juniper JN0-683 Sample Questions |
| Exam Way: | Delivered via Pearson VUE (online proctored or authorized testing centers) |
| Pre Condition: | Recommended prior certification: JNCIS-DC or equivalent data center networking experience |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification.html |
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NEW QUESTION # 33
Your organization is implementing EVPN-VXLAN and requires multiple overlapping VLAN-IDs. You decide to use a routing-instance type mac-vrf to satisfy this request.
Which two statements are correct in this scenario? (Choose two.)
Answer: A,B
Explanation:
* Understanding the Scenario:
* EVPN-VXLAN deployments often involve scenarios where multiple tenants or applications require overlapping VLAN IDs, which can be managed using the mac-vrf routing instance type.
This allows you to segregate traffic within the same VLAN ID across different tenants.
* Host-facing Interface Configuration:
* A. Host-facing interfaces must be configured using a service-provider style configuration:
This is correct. In mac-vrf configurations, host-facing interfaces (those connecting end devices) typically follow a service-provider style configuration, where each customer or tenant's traffic is isolated even if overlapping VLAN IDs are used.
* B. Host-facing interfaces must be configured using enterprise-style configuration:This is incorrect for mac-vrf instances because enterprise-style configurations are more common in simpler, less segmented networks.
* Routing Instance Service Type:
* D. The routing-instance service type can be VLAN-based:This is correct. The service type in mac-vrf can indeed be VLAN-based, which is particularly useful in scenarios where VLAN ID overlap is needed between different tenants or services.
Data Center References:
* The mac-vrf instance type is powerful for handling complex multi-tenant environments in EVPN- VXLAN, especially when dealing with overlapping VLAN IDs across different segments of the network.
NEW QUESTION # 34
Click the Exhibit button. Both DC and DC2 are using EVPN-VXLAN technology deployed using an ERB architecture. A server on the Red VLAN must communicate with a server on the Green VLAN. The Blue VLAN in DC and DC2 needs to be the same VLAN.
Which statement is correct?
Answer: C
Explanation:
In an EVPN-VXLAN ERB (Edge Routed Bridging) architecture, Layer 2 VLANs can be stretched across data centers using VXLAN, while Layer 3 communication between different VLANs requires routing at the edge. Since the Blue VLAN must remain the same across DC and DC2, it must be stretched using VXLAN. However, inter-VLAN communication (between the Red and Green VLANs) requires Layer 3 routing, which is typically handled by a services block, such as the SRX Series chassis cluster shown in the diagram.
To enable inter-VLAN communication, a transit VNI (VXLAN Network Identifier) must be introduced, allowing the Red and Green VLANs to communicate across the two data centers. The interconnect between the SRX Series devices ensures that Layer 3 routing can be performed while maintaining VXLAN encapsulation between the two sites.
NEW QUESTION # 35
You 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.)
Answer: B,C,E
Explanation:
* 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.
NEW QUESTION # 36
Host A is connected to vlan 100 on lead. Host B is connected to vlan 200 on leaf1. Host A and Host B ate unable to communicate. You have reviewed the touting and your hosts have the correct default route (.1) Referring to the exhibit, which two commands will solve the problem? (Choose two.)
Answer: A,D
Explanation:
VLAN 100 (BLUE) does not have an IRB interface configured, meaning there is no Layer 3 gateway for hosts in VLAN 100. Adding an IRB.100 interface with an IP address will allow routing between VLAN 100 and VLAN 200.
Even after configuring the IRB interface for VLAN 100, you need to bind it to VLAN 100 so that the switch correctly associates VLAN 100 traffic with the IRB. This ensures that the VLAN can route traffic through the correct Layer 3 gateway.
NEW QUESTION # 37
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)
Answer: A,B,C
Explanation:
* 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.
NEW QUESTION # 38
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