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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | JNCIP-DC Data Center, Professional |
| Exam Number: | JN0-683 |
| Available Languages: | English |
| Passing Score: | Scaled score (not publicly fixed) |
| Exam Duration: | 90 minutes |
| Related Certifications: | JNCIE-DC JNCIS-DC |
| Real Exam Qty: | Approximately 65 questions |
| Exam Price: | Approximately $300 USD (varies by region) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple choice, Scenario-based questions |
| Recommended Training: | Data Center, Professional (JNCIP-DC) Training Path Juniper Networks Training & Certification |
| 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 # 75
Why is a designated forwarder required in a multihomed CE-to-PE VXLAN environment using EVPN signalling?
Answer: B
Explanation:
The designated forwarder is required to prevent duplicate packets from being received on multihomed hosts: In a multihomed CE-to-PE VXLAN environment using EVPN signaling, a host may be connected to more than one PE. Without a designated forwarder, both PEs could forward the same broadcast, multicast, or unicast traffic to the multihomed host, leading to duplicate packets. The designated forwarder ensures that only one PE forwards traffic to the host, preventing this issue.
NEW QUESTION # 76
Exhibit.
Both DC and DC2 ate 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 in this scenario?
Answer: D
Explanation:
* ERB Architecture in EVPN-VXLAN:
* ERB (Edge Routed Bridging) architecture is commonly used in data center networks where routing decisions are made at the network edge (leaf or border devices), while bridging (Layer 2 forwarding) is extended across the fabric. This architecture allows for efficient L3 routing while still enabling L2 services like VLANs to span across multiple locations.
* VLAN and VNI Configuration:
* The scenario specifies that a server on the Red VLAN needs to communicate with a server on the Green VLAN. Since these VLANs are in different data centers (DC and DC2), and given the use of EVPN-VXLAN, the communication between these VLANs will require atransit VNI(Virtual Network Identifier). This transit VNI will allow traffic to traverse the VXLAN tunnel across the DCI (Data Center Interconnect).
* Interconnect between SRX Series Devices:
* The exhibit shows SRX Series Chassis Clusters used as service devices (likely for firewalling or other security services). These devices need to be interconnected between the two data centers to ensure that VLANs can communicate effectively. The Blue VLAN needs to be stretched between DC and DC2 to maintain the same Layer 2 domain across both data centers.
Conclusion:
* Option B:Correct-Interconnecting the SRX Series devices will ensure the necessary service chaining, while stretching the Blue VLAN and adding a transit VNI for the Red and Green VLANs will enable the required communication across the data centers.
NEW QUESTION # 77
Your company asks you to create a network in one of its data centers specifically for supporting AI or ML workloads. You have chosen to use lossless Ethernet.
In this scenario, which statement about Juniper Networks' best practices for Ethernet networks that support RDMA AI/ML traffic is correct?
Answer: D
Explanation:
In a lossless Ethernet network designed for AI/ML workloads using RDMA (Remote Direct Memory Access), Enhanced Transmission Selection (ETS) is a key feature that helps allocate bandwidth dynamically among different traffic classes, ensuring that AI/ML traffic is prioritized without starving other types of traffic. Juniper Networks' best practices recommend enabling ETS on interfaces connecting to GPU servers to ensure proper bandwidth allocation and prevent congestion.
NEW QUESTION # 78
You are asked to identify microburst traffic occurring in the network leading to packet drops in your data center switches.
Which two tools would be used in this scenario? (Choose two.)
Answer: C,D
Explanation:
port buffer monitoring: Port buffer monitoring is an effective tool for detecting microbursts in network traffic. By monitoring buffer utilization on the switch ports, you can identify periods of high congestion where the buffer might overflow, leading to packet drops. This allows you to observe when and where traffic is overwhelming the port buffers, which is a typical sign of microbursts.
port mirroring: Port mirroring allows you to capture the traffic on a specific port or set of ports and send it to a monitoring device for analysis. This can be useful for identifying microburst traffic, as it allows you to analyze the traffic patterns and volume to determine if short bursts of traffic are causing packet drops on the network.
NEW QUESTION # 79
Which two statements are true about a pure IP fabric? (Choose two.)
Answer: C,D
Explanation:
An IP fabric does not support Layer 2 protocols: A pure IP fabric is designed to work primarily at Layer 3 and does not require Layer 2 protocols like spanning tree or VLANs for operation. It focuses on IP-based routing and forwarding, and Layer 2 protocols are not typically used within the fabric itself.
Devices in an IP fabric function as Layer 3 routers: In a pure IP fabric, devices (typically leaf and spine switches) operate primarily as Layer 3 routers. They are responsible for routing IP traffic across the fabric, with VXLAN or other tunneling technologies used for overlay and encapsulation.
NEW QUESTION # 80
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