New Release JN0-683 Questions - Juniper JN0-683 Exam Dumps

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Juniper JN0-683 Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Center Interconnect- DCI Concepts
  • 1. Interconnect network types
  • 2. Stitching
  • 3. Layer 2 and Layer 3 stretch
  • 4. EVPN-signaled VXLAN for DCI
- Configuration and Troubleshooting
  • 1. Configuring, monitoring, or troubleshooting DCI
Topic 2: Data Center Deployment and Management- Data Center Management Concepts
  • 1. Analytics (telemetry)
  • 2. Monitoring
- Data Center Deployment Concepts
  • 1. Dynamic Host Configuration Protocol (DHCP)
  • 2. Zero-touch provisioning (ZTP)
Topic 3: EVPN-VXLAN Signaling- Configuration and Troubleshooting
  • 1. Configuring, monitoring, or troubleshooting EVPNs
- EVPN Concepts
  • 1. MAC learning
  • 2. Route types
  • 3. EVPN multicast
  • 4. Multiprotocol BGP (MBGP)
  • 5. Symmetric routing
  • 6. EVPN architectures (CRB and ERB)
Topic 4: Layer 3 Fabrics- Configuration and Troubleshooting
  • 1. Configuring, monitoring, or troubleshooting an IP fabric
- IP Fabric Concepts
  • 1. IP fabric scaling
  • 2. IP fabric architecture
  • 3. IP fabric routing
  • 4. IP fabric best practices
  • 5. IP fabric Class of Service (RDMA/RoCE)
Topic 5: VXLAN- Configuration and Troubleshooting
  • 1. Configuring, monitoring, or troubleshooting VXLAN
- VXLAN Concepts
  • 1. Data plane
  • 2. VXLAN control planes
Topic 6: Data Center Multitenancy and Security- Security Concepts
  • 1. Filter-based forwarding
  • 2. Group-based policy (GBP)
- Architectures
  • 1. Multitenancy (for example, routing instances)
  • 2. Tenant traffic isolation (Layer 3 or Layer 2)
  • 3. Single tenant and multitenant architectures

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Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q46-Q51):

NEW QUESTION # 46
Click the Exhibit button. 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: D

Explanation:
For EVPN Type 5 route advertisement and full inter-data center connectivity, the EVPN configuration must specify the encapsulation type, especially if VXLAN is used as the data-plane overlay.
The parameter encapsulation vxlan must be added under the protocols evpn hierarchy to ensure border leaf devices can advertise and exchange IP prefix routes (Type 5) properly between data centers.
The option to move vrf-target under the EVPN hierarchy is not valid, as that statement is only supported within the routing instance or vni-options section, but not directly under protocols evpn.


NEW QUESTION # 47
Exhibit.

Referring to the exhibit, when Host A sends an ARP request for Host B's IP address, which Junos feature does leaf1require to send an ARP response back to Host A without having to send a broadcast frame over the fabric?

Answer: C

Explanation:
* Scenario Overview:
* In the exhibit, Host A is trying to resolve Host B's IP address (10.10.1.2) through ARP (Address Resolution Protocol). Normally, an ARP request would be broadcasted over the network, and the host owning the IP address (Host B) would respond.
* Role of Proxy ARP:
* Option A:Proxy ARPallows a router or switch (in this case, leaf1) to respond to ARP requests on behalf of another host. Leaf1, knowing the MAC address of Host B through the EVPN MAC advertisement, can reply to Host A's ARP request directly without broadcasting the request across the entire network fabric. This feature reduces unnecessary traffic and increases network efficiency.
Conclusion:
* Option A:Correct-Proxy ARP enables leaf1 to respond to Host A's ARP request for Host B's IP without broadcasting over the IP fabric, thus providing the ARP response locally.


NEW QUESTION # 48
You are using EBGP peering in an underlay IP fabric.
Which two statements are correct in this scenario? (Choose two.)

Answer: A,B

Explanation:
Every leaf node has one peering session to every spine node: In an EBGP peering setup within an underlay IP fabric, each leaf node typically establishes a single EBGP session with each spine node. This is a common design for scalability, as it ensures that the leaf nodes can exchange routing information with all spine nodes directly.
EBGP peering does not require an IGP protocol for adjacency establishment: EBGP (External BGP) peering in an underlay IP fabric does not require an IGP (Interior Gateway Protocol) such as OSPF or IS-IS to establish peering relationships. EBGP is used for establishing external routing between different ASes, and within a single AS, the peering is established directly between devices. This eliminates the need for an IGP for the actual EBGP session.


NEW QUESTION # 49
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?

Answer: A

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 # 50
You are designing an IP fabricfora large data center, and you are concerned about growth and scalability.
Which two actions would you take to address these concerns? (Choose two.)

Answer: A,D


NEW QUESTION # 51
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