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JN0-683題庫最新資訊，JN0-683考試重點

獲得JN0-683認證已經成為大多數IT員工獲得更好工作的一種選擇，然而，許多考生一直在努力嘗試卻失敗了。如果你選擇使用我們的Juniper JN0-683題庫產品，幫您最大程度保證取得成功。充分利用JN0-683題庫你將得到不一樣的效果，這是一個針對性強，覆蓋面廣，更新快，最完整的學習資料，保證您一次通過JN0-683考試。如果您想要真實的考試模擬，就選擇我們軟件版本的Juniper JN0-683題庫，安裝在電腦上進行模擬，簡單易操作。

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JN0-683 免費題庫答案轉儲-通過 JN0-683 - Data Center, Professional (JNCIP-DC) 認證考試

近來，隨著IT技術的不斷快速發展，學習IT技術的人越來越多。這也導致在IT行業工作的人越來越多。於是，IT行業的競爭愈發激烈了。同樣在IT行業工作，並且有著IT夢的你，肯定不希望被別人趕上甚至超過吧？那麼，這就需要你不斷提升自己的技能，向別人證明你自己的實力。那麼怎樣才能證明你自己的能力呢？越來越多的人選擇參加IT認定考試取得認證資格來證明自己的實力。你也想获得认证资格吗？首先来参加JuniperのJN0-683认定考试吧。这是Juniper的最重要的考试，同时也是被业界广泛认证的资格。

Juniper JN0-683 考試大綱：

主題
簡介

主題 1

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 2

Data 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.

主題 3

VXLAN: This part requires knowledge of VXLAN, particularly how the control plane manages communication between devices, while the data plane handles traffic flow. Demonstrate knowledge of how to configure, Monitor, or Troubleshoot VXLAN.

最新的 JNCIP-DC JN0-683 免費考試真題 (Q44-Q49):

問題 #44
A local VTEP has two ECMP paths to a remote VTEP
Which two statements are correctwhen load balancing is enabled in this scenario? (Choose two.)

A. The inner packet fields are not used in the hash for load balancing.
B. The inner packet fields are used in the hash for load balancing.
C. The destination port in the UDP header is used to load balance VXLAN traffic.
D. The source port in the UDP header is used to load balance VXLAN traffic.

答案：B,D

解題說明：
* Load Balancing in VXLAN:
* VXLAN uses UDP encapsulation to transport Layer 2 frames over an IP network. For load balancing across Equal-Cost Multi-Path (ECMP) links, various fields in the packet can be used to ensure even distribution of traffic.
* Key Load Balancing Fields:
* C. The source port in the UDP header is used to load balance VXLAN traffic:This is correct.
The source UDP port in the VXLAN packet is typically calculated based on a hash of the inner packet's fields. This makes the source port vary between packets, enabling effective load balancing across multiple paths.
* D. The inner packet fields are used in the hash for load balancing:This is also correct. Fields such as the source and destination IP addresses, source and destination MACaddresses, and possibly even higher-layer protocol information from the inner packet can be used to generate the hash that determines the ECMP path.
* Incorrect Statements:
* A. The inner packet fields are not used in the hash for load balancing:This is incorrect as the inner packet fields are indeed critical for generating the hash used in load balancing.
* B. The destination port in the UDP header is used to load balance VXLAN traffic:This is incorrect because the destination UDP port in VXLAN packets is typically fixed (e.g., port 4789 for VXLAN), and therefore cannot be used for effective load balancing.
Data Center References:
* Effective load balancing in VXLAN is crucial for ensuring high throughput and avoiding congestion on specific links. By using a combination of the source UDP port and inner packet fields, the network can distribute traffic evenly across available paths.

問題 #45
Which statement is correct about a collapsed fabric EVPN-VXLAN architecture?

A. Using Virtual Chassis at the leaf layer increases resiliency.
B. Fully meshed back-to-back links are needed between the spine devices.
C. It supports multiple vendors in the fabric as long as all the spine devices are Juniper devices deployed with L2 VTEPs
D. Border gateway functions occur on border leaf devices.

答案：D

解題說明：
* Collapsed Fabric Architecture:
* A collapsed fabric refers to a simplified architecture where the spine and leaf roles are combined, often reducing the number of devices and links required.
* In this architecture, the spine typically handles core switching, while leaf switches handle both access and distribution roles.
* Understanding Border Gateway Functionality:
* Border gateway functions include connecting the data center to external networks or other data centers.
* In a collapsed fabric, these functions are usually handled at the leaf level, particularly on border leaf devices that manage the ingress and egress of traffic to and from the data center fabric.
* Correct Statement:
* D. Border gateway functions occur on border leaf devices:This is accurate in collapsed fabric architectures, where the border leaf devices take on the role of managing external connections and handling routes to other data centers or the internet.
Data Center References:
* The collapsed fabric model is advantageous in smaller deployments or scenarios where simplicity and cost-effectiveness are prioritized. It reduces complexity by consolidating functions into fewer devices, and the border leaf handles the critical task of interfacing with external networks.
In conclusion, border gateway functions are effectively managed at the leaf layer in collapsed fabric architectures, ensuring that the data center can communicate with external networks seamlessly.

問題 #46
You are deploying a Clos IP fabric with an oversubscription ratio of 3:1.
In this scenario, which two statements are correct? (Choose two.)

A. The oversubscription ratio decreases when you add spine devices.
B. The oversubscription ratio remains the same when you remove spine devices.
C. The oversubscription ratio increases when you remove spine devices.
D. The oversubscription ratio remains the same when you add spine devices.

答案：A,C

解題說明：
* Understanding Oversubscription in a Clos Fabric:
* The oversubscription ratio in a Clos IP fabric measures the ratio of the amount of edge (leaf) bandwidth to the core (spine) bandwidth. An oversubscription ratio of 3:1 means that there is three times more edge bandwidth compared to core bandwidth.
* Impact of Adding/Removing Spine Devices:
* Option C:If youremove spine devices, the total available core bandwidth decreases, while the edge bandwidth remains the same. This results in anincrease in the oversubscription ratio because there is now less core bandwidth to handle the same amount of edge traffic.
* Option B:Conversely, if youadd spine devices, the total core bandwidth increases. This decreases the oversubscription ratio because more core bandwidth is available to handle the edge traffic.
Conclusion:
* Option C:Correct-Removing spine devices increases the oversubscription ratio.
* Option B:Correct-Adding spine devices decreases the oversubscription ratio.

問題 #47
Exhibit.

Referring to the exhibit, when Host A sends an ARP request for Host B's IP address, which Junos feature does leaf1 require to send an ARP response back to Host A without having to send a broadcast frame over the fabric?

A. DAD
B. GARP
C. proxy NDP
D. proxy ARP

答案：D

解題說明：
* Scenario Overview:
* In the exhibit, Host A is trying to resolve Host B's IP address (10.10.1.2) through ARP (Address Resolution Protocol). Normally, an ARP request would be broadcasted over the network, and the host owning the IP address (Host B) would respond.
* Role of Proxy ARP:
* Option A:Proxy ARPallows a router or switch (in this case, leaf1) to respond to ARP requests on behalf of another host. Leaf1, knowing the MAC address of Host B through the EVPN MAC advertisement, can reply to Host A's ARP request directly without broadcasting the request across the entire network fabric. This feature reduces unnecessary traffic and increases network efficiency.
Conclusion:
* Option A:Correct-Proxy ARP enables leaf1 to respond to Host A's ARP request for Host B's IP without broadcasting over the IP fabric, thus providing the ARP response locally.

問題 #48
You 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?

A. set protocols isis interface irb.100 passive
B. set vlans VLAN-100 13-interface irb.100
C. set bridge-domains VLAN-100 routing-interface irb.100
D. set protocols ospf area 0.0.0.0 interface irb.100 passive

答案：C

解題說明：
* 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.

問題 #49
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