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| Certification Vendor: | Juniper |
|---|---|
| Exam Name: | Data Center, Professional (JNCIP-DC) |
| Exam Number: | JN0-683 |
| Passing Score: | Scaled (Approx. 650/1000) |
| Exam Price: | $400 USD |
| Exam Format: | Multiple-choice |
| Available Languages: | English |
| Real Exam Qty: | 65 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Related Certifications: | Juniper Networks Certified Professional Data Center (JNCIP-DC) |
| Sample Questions: | Juniper JN0-683 Sample Questions |
| Exam Way: | Online-proctored or Pearson VUE testing center |
| Pre Condition: | JNCIS-DC (JN0-481) is recommended/preferred. |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/data-center/jncip-dc.html |
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NEW QUESTION # 97
You are asked to automatically provision new Juniper Networks devices in your network with minimal manual intervention Before you begin, which two statements are correct? (Choose two.)
Answer: B,C
Explanation:
You must have a DHCP server that provides the location of the software image and configuration files: This is necessary because DHCP is typically used in automated provisioning processes to provide the device with its IP address, gateway, and important information like the location of the configuration and software image files. These files are crucial for the device to properly boot and configure itself.
You must have a file server that stores software image and configuration files: A file server (usually TFTP or HTTP server) is required to store the necessary software image and configuration files for the Juniper device. These files are fetched during the provisioning process to set up the device.
NEW QUESTION # 98
Exhibit.
You want to enable the border leaf device to send Type 5 routes of local networks to the border leaf device in another data center. What must be changed to the configuration shown in the exhibit to satisfy this requirement?
Answer: B
Explanation:
In this scenario, you want the border leaf device to advertise Type 5 EVPN routes to another border leaf in a different data center. Type 5 routes in EVPN are used to advertise IP prefixes, which means that for proper route advertisement, you need to configure the correct settings within the evpn hierarchy.
Step-by-Step Analysis:
* Understanding EVPN Type 5 Routes:
* EVPN Type 5 routes are used to advertise IP prefixes across EVPN instances, which allow different data centers or networks to exchange routing information effectively.
* VRF Target Setting:
* The vrf-target configuration is crucial because it defines the export and import policies for the VRF within the EVPN instance. For EVPN Type 5 routes to be advertised to other border leaf devices, the vrf-target needs to be correctly configured under the evpn hierarchy, not just within the routing instance.
Command to solve this:
move vrf-target target:65000:1 to evpn
* Other Options:
* Option B:Adding a VLAN configuration would not address the requirement to advertise Type 5 routes.
* Option C:Adding VXLAN encapsulation may be necessary for other scenarios but does not directly address the Type 5 route advertisement.
* Option D:Changing the route-distinguisher will differentiate routes but does not impact the advertisement of Type 5 routes to other data centers.
By moving the vrf-target to the evpn hierarchy, you enable the proper route advertisement, ensuring that the Type 5 routes for local networks are shared with other data center border leaf devices. This is aligned with best practices for multi-data center EVPN implementations, which emphasize the correct placement of routing policies within the EVPN configuration.
NEW QUESTION # 99
Due to heavy congestion, some VXLAN packets are being lost. In this scenario, which two statements are correct? (Choose two.)
Answer: B,C
Explanation:
VXLAN encapsulation is carried over UDP and does not include any built-in acknowledgement or retransmission mechanism. When packets are lost in transit, recovery is handled by the transport/application behavior of the endpoints (for example, TCP at the hosts detects loss and triggers retransmission).
NEW QUESTION # 100
Exhibit.
Referring tothe exhibit, which statement is correct?
Answer: A
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 # 101
Whatare two ways in which an EVPN-signaled VXLAN is different from a multicast-signaled VXLAN?
(Choose two.)
Answer: C,D
Explanation:
* Multicast-Signaled VXLAN:
* In traditional multicast-signaled VXLAN, VTEPs (VXLAN Tunnel Endpoints) use multicast to flood and learn about remote VTEPs. This method relies on multicast in the underlay network to distribute BUM (Broadcast, Unknown unicast, and Multicast) traffic.
* This approach can be resource-intensive due to the need for multicast group management and increased network traffic, especially in large deployments.
* EVPN-Signaled VXLAN:
* EVPN-signaled VXLAN uses BGP (Border Gateway Protocol) to signal the presence of VTEPs and distribute MAC address information. BGP is used for VTEP autodiscovery and the distribution of endpoint information.
* This method is more efficient because it reduces the reliance on multicast, instead using BGP control-plane signaling to handle VTEP discovery and MAC learning, which reduces the overhead on the network and improves scalability.
* Correct Statements:
* B. An EVPN-signaled VXLAN can perform autodiscovery of VTEPs using BGP:This is correct because EVPN uses BGP for VTEP autodiscovery, making it more efficient and scalable compared to multicast-based methods.
* C. An EVPN-signaled VXLAN is less resource-intensive:This is correct because it eliminates the need for multicast flooding in the underlay, instead using BGP for signaling, which is less demanding on network resources.
* Incorrect Statements:
* A. An EVPN-signaled VXLAN can perform autodiscovery of VTEPs using IS-IS:This is incorrect because EVPN relies on BGP, not IS-IS, for VTEP discovery and signaling.
* D. An EVPN-signaled VXLAN features slower and more complete convergence:This is incorrect; EVPN with BGP typically provides faster convergence due to its use of a control plane rather than relying on data plane learning.
Data Center References:
* EVPN-VXLAN is widely adopted in modern data center designs due to its scalability, efficiency, and reduced resource consumption compared to multicast-based VXLAN solutions. It leverages the strengths of BGP for control-plane-driven operations, resulting in more efficient and scalable networks.
NEW QUESTION # 102
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