JN0-683 Related Certifications - Reliable JN0-683 Test Sims

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Juniper JN0-683 Exam Syllabus Topics:

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

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Juniper Data Center, Professional (JNCIP-DC) Sample Questions (Q89-Q94):

NEW QUESTION # 89
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 # 90
You are designing an IP fabric tor a large data center, and you are concerned about growth and scalability.
Which two actions would you take to address these concerns? (Choose two.)

Answer: C,D

Explanation:
* Clos IP Fabric Design:
* A Clos fabric is a network topology designed for scalable, high-performance data centers. It is typically arranged in multiple stages, providing redundancy, high bandwidth, and low latency.
* Three-Stage Clos Fabric:
* Option B:A three-stage Clos fabric, consisting of leaf, spine, and super spine layers, is widely used in data centers. This design scales well and allows for easy expansion by adding more leaf and spine devices as needed.
* Super Spines for Scalability:
* Option D:Using high-capacity devices like the QFX5700 Series as super spines can handle the increased traffic demands in large data centers and support future growth. These devices provide the necessary bandwidth and scalability for large-scale deployments.
Conclusion:
* Option B:Correct-A three-stage Clos fabric is a proven design that addresses growth and scalability concerns in large data centers.
* Option D:Correct-QFX5700 Series devices are suitable for use as super spines in large-scale environments due to their high performance.


NEW QUESTION # 91
You are deploying a Clos IP fabric with an oversubscription ratio of 3:1.
In this scenario, which two statements are correct? (Choose two.)

Answer: A,B

Explanation:
The oversubscription ratio is the ratio of edge (leaf) bandwidth to core (spine) bandwidth.
When you add spine devices, the total available core bandwidth increases, which reduces (decreases) the oversubscription ratio.
When you remove spine devices, the total core bandwidth decreases while edge bandwidth remains the same, causing the oversubscription ratio to increase.


NEW QUESTION # 92
Referring to the exhibit, which statement is true?

Answer: B

Explanation:
The configuration provided in the exhibit indicates an EVPN-VXLAN setup with routing instances, VLANs, and associated VXLANs. Specifically, there are routing instances with IRB interfaces (Integrated Routing and Bridging) and associated VLANs, as well as VNI assignments, which are key elements in an Enhanced Routed Bridging (ERB) architecture. This architecture supports both Layer 2 and Layer 3 connectivity with VXLAN for bridging and routing.


NEW QUESTION # 93
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: A

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 # 94
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