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Title: 全面的JN0-683考試證照，最新的考試資料幫助妳壹次性通過JN0-683考試 [Print This Page]
Author: ronking477    Time: 14 hour before
Title: 全面的JN0-683考試證照，最新的考試資料幫助妳壹次性通過JN0-683考試
Juniper的JN0-683的考試認證對每位IT人士來說都是非常重要的，只要得到這個認證你一定不回被職場淘汰，並且你將會被升職，加薪。有了這些現實的東西，你將得到你想要的一切，有人說，通過了Juniper的JN0-683的考試認證就等於走向了成功，沒錯，這是真的，你有了你想要的一切就是成功的表現之一。Fast2test的 Juniper的JN0-683的考題資料是你們成功的源泉，有了這個培訓資料，只會加快你們成功的步伐，讓你們成功的更有自信，也是保證讓你們成功的砝碼。
Juniper JN0-683 考試大綱：
主題簡介
主題 1
  • Layer 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.
主題 2
  • Data Center Multitenancy and Security: This section tests knowledge of single-tenant and multitenant data center setups. Candidates such as Data Center Professionals are evaluated on ensuring tenant traffic isolation at both Layer 2 and Layer 3 levels in shared infrastructure environments.
主題 3
  • EVPN-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.

>> JN0-683考試證照 <<
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最新的 JNCIP-DC JN0-683 免費考試真題 (Q55-Q60):問題 #55
Exhibit.

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?
答案：A
解題說明：
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.

問題 #56
You want to provide a OCI that keeps each data center routing domain isolated, while also supporting translation of VNIs. Which DCI scheme allows these features?
答案：B
解題說明：
* Understanding DCI (Data Center Interconnect) Schemes:
* DCI schemes are used to connect multiple data centers, enabling seamless communication and resource sharing between them. The choice of DCI depends on the specific requirements, such as isolation, VNI translation, or routing domain separation.
* VXLAN Stitching:
* VXLAN stitching involves connecting multiple VXLAN segments, allowing VNIs (VXLAN Network Identifiers) from different segments to communicate with each other while maintaining separate routing domains.
* This approach is particularly effective for keeping routing domains isolated while supporting VNI translation, making it ideal for scenarios where you need to connect different data centers or networks without merging their control planes.
* Other Options:
* A. MPLS DCI label exchange:This option typically focuses on MPLS-based interconnections and does not inherently support VNI translation or isolation in the context of VXLAN.
* B. Over the top (OTT) with VNI translation enabled:This could support VNI translation but does not inherently ensure routing domain isolation.
* D. Over the top (OTT) with proxy gateways:This typically involves using external gateways for traffic routing and may not directly support VNI translation or isolation in the same way as VXLAN stitching.
Data Center References:
* VXLAN stitching is a powerful method in multi-data center environments, allowing for flexibility in connecting various VXLAN segments while preserving network isolation and supporting complex interconnect requirements.

問題 #57
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes?
(Choose three.)
答案：A,C,E
解題說明：
An L3 interface (IRB) is required for each local VLAN: In symmetric IRB (Integrated Routing and Bridging) routing with EVPN Type 2 routes, an L3 interface (IRB) is needed for each VLAN in the local network. This interface provides the Layer 3 connectivity for the local VLANs and allows routing between bridged domains.
Symmetric routing requires MAC-VRF: Symmetric routing typically requires the use of MAC- VRF (MAC address VPN), which enables the device to route traffic while maintaining both Layer
2 and Layer 3 information. This ensures that both bridged and routed traffic are handled efficiently.
Symmetric routing requires an extra transit VNI for each VRF: It requires an extra transit VNI (a Layer 3 VNI) per VRF that carries routed (Layer 3) traffic across the VXLAN fabric.

問題 #58
Click the Exhibit button. You are troubleshooting an IP fabric for your data center. You notice that your traffic is not being load balancing to your spine devices from leaf devices.
Referring to the configuration shown in the exhibit, what must be configured to solve this issue?

答案：A
解題說明：
You already have BGP multipath turned on (multiple-as;), so the control plane can install multiple equal-cost routes to the spines.
You also created a load-balance policy (load-balance per-packet;).
But the traffic is still not being balanced → because the policy is not applied anywhere.
In Junos, per-packet (or per-flow) load-balancing is not decided in BGP.
It's decided in the forwarding table (FIB) - the place where the actual packet forwarding happens.
That's why Juniper requires you to "attach" your load-balancing policy to the forwarding table.

問題 #59
Which two requirements are needed to facilitate over-the-top DCI? (Choose two.)
答案：A,D
解題說明：
All leaf VTEPs in each network must be reachable: In over-the-top Data Center Interconnect (DCI) using EVPN-VXLAN, the leaf VTEPs (VXLAN Tunnel Endpoints) in both data centers need to be reachable from each other. This is crucial for the successful exchange of VXLAN traffic and the proper operation of the overlay network between the data centers.
EVPN route-types must be advertised to all leaf devices: To extend Layer 2 and Layer 3 services seamlessly across data centers in OTT DCI, EVPN route types must be advertised to all leaf devices to maintain the unified control plane and support endpoint reachability.

問題 #60
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JN0-683考古題介紹: https://tw.fast2test.com/JN0-683-premium-file.html




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