JN0-683 VALID EXAMCOLLECTION | INTERACTIVE JN0-683 COURSE

JN0-683 Valid Examcollection | Interactive JN0-683 Course

JN0-683 Valid Examcollection | Interactive JN0-683 Course

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Juniper JN0-683 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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.
Topic 2
  • 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 3
  • 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 4
  • 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 5
  • 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.

Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q54-Q59):

NEW QUESTION # 54
Which parameter is used to associate a received route with a local VPN route table?

  • A. VNI
  • B. route-target community
  • C. VLAN ID
  • D. route-distinguisher

Answer: B

Explanation:
* Understanding VPN Route Table Association:
* In MPLS/VPN and EVPN networks, theroute-target communityis a BGP extended community attribute used to control the import and export of VPN routes. It associates received routes with the appropriate VPN route tables on the PE (Provider Edge) routers.
* Function of Route-Target Community:
* The route-target community tag ensures that routes are imported into the correct VRF (Virtual Routing and Forwarding) instance, allowing them to be correctly routed within the VPN.
Conclusion:
* Option A:Correct-The route-target community is used to associate received routes with a local VPN route table.


NEW QUESTION # 55
You are asked to implement VXLAN group-based policies (GBPs) in your data center. Which two statements are correct in (his scenario? (Choose two.)

  • A. VXLAN GBP uses scalable group tags thatmust be configured statically on each switch and activated through 802.1X.
  • B. VXLAN GBP uses scalable group tags that may be configured on a RADIUS server and pushed to the switch through 802.1X.
  • C. VXLAN GBP ensures consistent application of security group policies throughout the network.
  • D. VXLAN GBP ensures consistent application of BGP groups throughout the network.

Answer: B,C

Explanation:
* VXLAN Group-Based Policies (GBP):
* VXLAN Group-Based Policies are used to apply security policies consistently across the network. These policies are often tied to user or device identities rather than static IP addresses, which allows for more dynamic and scalable security management.
* Scalable Group Tags via RADIUS and 802.1X:
* Option B:VXLAN GBP can use scalable group tags configured on a RADIUS server, which are then pushed to network devices through 802.1X. This allows for centralized and automated policy application based on user or device identity.
* Consistent Security Policy Application:
* Option C:GBP ensures that security policies are consistently applied across the network, regardless of where a user or device connects. This consistency is crucial in environments where security policies must follow the user or device.
Conclusion:
* Option B:Correct-Group tags can be configured on a RADIUS server and pushed via 802.1X, enabling centralized policy management.
* Option C:Correct-GBP ensures consistent application of security policies, which is essential for maintaining security across a dynamic network environment.


NEW QUESTION # 56
Exhibit.

Referring to the configuration shown in the exhibit, assume that there is no external router present, and that the configuration is fabric-only.
Which two statements are true about the example configuration? (Choose two.)

  • A. Devices in irb.400 (vlan 400) are not able to communicate directly with devices in routing instance Customer A.
  • B. Devices in irb.400 (vlan 400) and irb.800 (vlan 800) are able to communicate over the fabric.
  • C. Devices in routing instance Customer A are able to communicate with devices in routing instance Customer B
  • D. VNI 10006is assigned to vlan 800 (irb.800).

Answer: A,B

Explanation:
* Understanding the Configuration:
* The exhibit shows configurations for two VRFs (Customer_A and Customer_B) with specific VLANs and VNIs assigned. Each VRF has interfaces (IRBs) associated with particular VLANs.
* Communication Between VLANs and Routing Instances:
* Option B:VLAN 400 (irb.400) is part of Customer_B, and there is no direct connection or routing between Customer_A and Customer_B in the configuration provided. Therefore, devices in irb.400 cannot communicate directly with devices in the Customer_A routing instance.
* Option D:Since irb.400 (VLAN 400) and irb.800 (VLAN 800) are part of the same routing instance (Customer_B), they can communicate over the fabric using VXLAN encapsulation.
Conclusion:
* Option B:Correct-There is no direct communication between devices in irb.400 (Customer_B) and routing instance Customer_A.
* Option D:Correct-Devices in VLAN 400 and VLAN 800 can communicate within the Customer_B routing instance over the fabric.


NEW QUESTION # 57
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)

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

Answer: A,B,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 # 58
Which three statements are correct about VXLAN control planes? (Choose three.)

  • A. Both multicast and EVPN can facilitate MAC learning.
  • B. EVPN is inefficient and does not scale well.
  • C. EVPN enables fast convergence and updates.
  • D. Multicast is not agile and requires manual VNI mapping.
  • E. Multicast does not require as many resources.

Answer: A,C,E

Explanation:
* VXLAN Control Planes:
* VXLAN (Virtual Extensible LAN) uses different control planes to handle MAC learning and traffic forwarding. The control planes include multicast and EVPN (Ethernet VPN).
* Multicast and EVPN Comparison:
* Option B:Both multicast and EVPN can be used for MAC learning in a VXLAN environment.
Multicast is a more traditional approach, while EVPN is more advanced and supports distributed MAC learning.
* Option D:EVPN offers benefits such as fast convergence and rapid updates, making it more efficient and scalable for modern data center environments.
* Option E:Multicast does not require as many resources because it relies on traditional Layer 3 multicast mechanisms to distribute broadcast, unknown unicast, and multicast (BUM) traffic.
However, it can be less flexible and less scalable compared to EVPN.
Conclusion:
* Option B:Correct-Both control planes facilitate MAC learning.
* Option D:Correct-EVPN provides fast convergence and updates.
* Option E:Correct-Multicast is resource-efficient but less flexible.


NEW QUESTION # 59
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