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Juniper JN0-683 Exam Syllabus Topics:

Topic	Details
Topic 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.
Topic 2	Data 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 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.
Topic 4	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.

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Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q27-Q32):

NEW QUESTION # 27
You are asked to identify microburst traffic occurring in the network leading lo packet drops in your data center switches Which two tools would be used in this scenario? (Choose two.)

A. syslog
B. port mirroring
C. Traceoptions
D. port buffer monitoring

Answer: B,D

Explanation:
* Identifying Microburst Traffic:
* Microbursts are short spikes in network traffic that can overwhelm buffers and cause packet drops. Detecting and analyzing microbursts is crucial for understanding where packet loss might be occurring in a data center network.
* Port Buffer Monitoring:
* Port Buffer Monitoring:This tool specifically tracks the usage of switch buffers, helping to identify when microbursts are causing buffers to overflow, leading to packet drops.
* Port Mirroring:
* Port Mirroring:This tool allows you to monitor real-time traffic on a specific port by copying the traffic to another port where it can be analyzed, often with a packet analyzer. While port mirroring doesn't directly detect microbursts, it helps capture traffic patterns that can indicate microbursts.
Conclusion:
* Option C:Correct-Port buffer monitoring directly identifies buffer overflows caused by microbursts.
* Option A:Correct-Port mirroring allows for the detailed capture and analysis of traffic patterns, which can reveal microburst behavior.
Options B(Traceoptions) andD(Syslog) are less effective in identifying microburst traffic. Traceoptions focus on control plane traffic debugging, and Syslog is more about logging system events than detecting high- frequency traffic spikes.

NEW QUESTION # 28
You are asked to set up an IP fabric thatsupports Al or ML workloads. You have chosen to use lossless Ethernet in this scenario, which statement is correct about congestion management?

A. Only the source and destination devices need ECN enabled.
B. The switch experiencing the congestion notifies the source device.
C. ECN marks packets based on WRED settings.
D. ECN is negotiated only among the switches that make up the IP fabric for each queue.

Answer: B

Explanation:
* Understanding Lossless Ethernet and Congestion Management:
* Lossless Ethernet is crucial for AI and ML workloads, where packet loss can significantly degrade performance. To implement lossless Ethernet, congestion management protocols like ECN (Explicit Congestion Notification) are used.
* Role of ECN in Congestion Management:
* Option A:In an IP fabric that supports lossless Ethernet, when a switch experiences congestion, it can mark packets using ECN. This marking notifies the source device of the congestion, allowing the source to reduce its transmission rate, thereby preventing packet loss.
Conclusion:
* Option A:Correct-The switch experiencing congestion notifies the source device via ECN marking.

NEW QUESTION # 29
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)

A. Symmetric routing is less efficient than asymmetric routing.
B. Symmetric routing requires MAC-VRF.
C. Symmetric routing requires an extra transit VNI for each VRF.
D. Symmetric routing supports the EVPN service VLAN bundle.
E. An L3 interface (IRB) is required for each local VLAN.

Answer: B,C,E

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 # 30
Exhibit.

Connections between hosts connected to Leaf-1 and Leaf-2 are not working correctly.

A. Configure the set switch-options vrf-target target:65000:1parameteron Leaf-2.
B. Configure the set switch-options vtep-source-interface irb.0 parameter on Leaf-1.
C. Configure the set switch-options service-id 1 parameter on Leaf-2.
D. Configure the set switch-options route-distinguisher i92.168.100.50:1parameter on Leaf-1.
E. Referring to the exhibit, which two configuration changes are required to solve the problem? (Choose two.)

Answer: A,D

NEW QUESTION # 31
Exhibit.

Referring to the exhibit, which statement is correct?

A. VNI 100 is not configured on the remote VTEP.
B. The MAC address is unknown and not in the forwarding table of the remote VTEP.
C. The MAC address is known but not reachable by the remote VTEP
D. The remote VTEP is not responding.

Answer: B

Explanation:
* 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.

NEW QUESTION # 32
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2025 Valid JN0-683 Exam Dump | 100% Free JN0-683 Actual Exam

Juniper JN0-683 Exam Syllabus Topics:

Exam Questions for Juniper JN0-683 With Money Back Guarantee

Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q27-Q32):

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