Certification JN0-683 Exam Infor | JN0-683 Practice Online

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Juniper JN0-683 Exam Syllabus Topics:

Topic	Details
Topic 1	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 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.
Topic 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.
Topic 4	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.

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Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q26-Q31):

NEW QUESTION # 26
Which statement correctly describes anti-spoofing protection in an EVPN-VXLAN fabric using ARP inspection?

A. It validates that the source MAC and IP address in an ARP packet match previously learned bindings before allowing the packet.
B. It encrypts ARP traffic between VTEPs.
C. It is only applicable to DHCP traffic.
D. It replaces the need for EVPN Type 2 routes.

Answer: A

Explanation:
Dynamic ARP inspection style anti-spoofing protection validates incoming ARP packets against a trusted binding table, typically built from DHCP snooping or previously learned EVPN Type 2 MAC/IP bindings, to confirm that the source MAC and IP addresses are legitimate. Packets that do not match a valid binding are dropped, preventing ARP spoofing and man-in-the-middle attacks within the fabric.

NEW QUESTION # 27
Click the Exhibit button. You are troubleshooting a DCI connection to another data center. The BGP session to the provider is established, but the session to Border-Leaf-2 is not established.
Referring to the exhibit, which configuration change should be made to solve this problem?

A. set protocols bgp group overlay export loopbacks
B. delete protocols bgp group UNDERLAY advertise-external
C. set protocols bgp group PROVIDER export LOOPBACKS
D. delete protocols bgp group OVERLAY accept-remote-nexthop

Answer: D

Explanation:
The "accept-remote-nexthop" statement allows the router to accept prefixes with a next hop that is not directly connected, which can cause BGP neighbor sessions to fail if not needed or properly supported.
Removing "accept-remote-nexthop" from the OVERLAY group is a common fix to resolve BGP session establishment issues with EVPN neighbors.

NEW QUESTION # 28
Click the Exhibit button. You have implemented an EVPN-VXLAN data center. Device server1 must be able to communicate with device server2.
Referring to the exhibit, which two statements are correct? (Choose two.)

A. An IRB Interface must be configured on leaf1 and Ieaf2.
B. Traffic from server1 to server2 will transit a VXLAN tunnel to spine1 or spine2, then a VXLAN tunnel from spine1 or spine2 to leaf2.
C. An IRB interface must be configured on spinel and spine2.
D. Traffic from server1 to server2 will transit the VXLAN tunnel between leaf1 and leaf2.

Answer: B,C

Explanation:
When routing is done in the spines (CRB model) a IREB must be configured at the spines.

NEW QUESTION # 29
As part of the onboarding process for new switches being added to your data centers, your company uses Juniper Networks' ZTP process. As part of the ZTP process, a script is executed by the devices being onboarded.
Which statement is correct in this scenario?

A. The Junos ZTP process supports Shell. JScript. and Ansible.
B. The Junos ZTP process supports Python, SLAX, and Perl.
C. The Junos ZTP process supports Shell. Python, and SLAX.
D. The Junos ZTP process supports JScript. Ansible. and Perl.

Answer: C

Explanation:
* Zero Touch Provisioning (ZTP):
* Juniper Networks' ZTP (Zero Touch Provisioning) process automates the deployment of new devices by allowing them to fetch and execute scripts for configuration and setup as they are powered on and connected to the network.
* Supported Scripting Languages:
* The Junos OS supports several scripting languages that can be used during the ZTP process:
* Shellscripts are often used for general automation tasks.
* Pythonis a widely supported language in Junos, offering powerful scripting capabilities for automating network tasks.
* SLAX(Service Logic Execution Environment) is a scripting language specific to Junos, designed to automate configuration tasks and simplify network operations.
Conclusion:
* Option D:Correct-Junos ZTP supports Shell, Python, and SLAX, making it the correct choice among the provided options.

NEW QUESTION # 30
Which two statements are correct about an ERB architecture? (Choose two.)

A. The VTEPs in an ERB architecture terminate on the spine devices.
B. The VTEPs in an ERB architecture terminate on the leaf devices.
C. Routing in an ERB architecture occurs on the spine devices.
D. Routing in an ERB architecture occurs on the leaf devices.

Answer: B,D

Explanation:
In an edge-routed bridging architecture, Layer 3 gateway functions are implemented on the leaf devices, so inter-VLAN routing occurs at the edge. The VXLAN tunnel endpoints are also located on the leaf devices, which encapsulate and decapsulate traffic as it enters and exits the overlay.

NEW QUESTION # 31
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The Data Center, Professional (JNCIP-DC) (JN0-683) certification exam is one of the top-rated career advancement certification exams. The Data Center, Professional (JNCIP-DC) (JN0-683) certification exam can play a significant role in career success. With the Data Center, Professional (JNCIP-DC) (JN0-683) certification you can gain several benefits such as validation of skills, career advancement, competitive advantage, continuing education, and global recognition of your skills and knowledge. The Data Center, Professional (JNCIP-DC) (JN0-683) certification is a valuable credential that assists you to enhance your existing skills and experience.

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