Exam JN0-650 Simulator Free | Pass-Sure JN0-650 Exam Material: Enterprise Routing and Switching, Professional (JNCIP-ENT)

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Juniper JN0-650 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: EVPN & Data Center Interconnect10%- Multi-homing, redundancy, integration
- EVPN route types, VXLAN encapsulation
Topic 2: Access Control & IP Telephony5%- 802.1X, MAC RADIUS, captive portal
- PoE, LLDP-MED, voice VLAN
Topic 3: IP Multicast15%- IGMP, PIM-SM, RP, Anycast RP, MSDP
- ASM / SSM models, RPF mechanism
- Multicast routing policy & scoping
Topic 4: Interior Gateway Protocols (IGPs)20%- IS-IS: operation, routing policy, route filtering
- Route preference, redistribution, summarization
- OSPFv2 / OSPFv3: design, configuration, troubleshooting
Topic 5: Border Gateway Protocol (BGP)20%- Communities, extended communities, load balancing
- Route selection, next-hop handling, attributes
- IPv4/IPv6 address families, policy implementation
Topic 6: Class of Service (CoS)10%- Classification, marking, forwarding classes
- Policers, schedulers, drop profiles, shaping
- Rewrite rules, congestion management
Topic 7: Advanced Ethernet Switching & Spanning Tree20%- Filter-based VLANs, private VLANs, MVRP
- Layer 2 tunneling: Q-in-Q, L2PT
- MSTP, VSTP, RSTP configuration & tuning

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JN0-650 Exam Material & JN0-650 Test Cram

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Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) Sample Questions (Q79-Q84):

NEW QUESTION # 79
The network you support currently has a mixture of MC-LAG and Virtual Chassis being used to provide redundant connectivity from various IDFs. A project to modernize the architecture and move to EVPN- VXLAN using ESI-LAG will be starting soon. You want to avoid IDFs losing connectivity as the core devices are migrated to EVPN-VXLAN. Which action will accomplish this task?

Answer: C

Explanation:
In an EVPN-VXLAN environment using ESI-LAG (Ethernet Segment Identifier Link Aggregation) , the Core Isolation feature is a safety mechanism designed to prevent traffic blackholing. When a leaf switch (acting as a VTEP) loses its BGP peering or its link to the IP fabric core, it assumes it is " isolated " from the rest of the network. To protect the network, the switch automatically shuts down its local member links of any multi-homed ESI-LAG to force traffic to the peer switch that still has core connectivity.
However, during a migration or in specific transitional topologies where the core might be temporarily unreachable or not yet fully established, this feature can cause the leaf switches to shut down all downstream IDF (Intermediate Distribution Frame) connections, leading to a total loss of connectivity.
* The Solution (Option C): By enabling the no-core-isolation statement under the [edit protocols evpn] hierarchy, you instruct the switch to disable this automatic shutdown behavior . This ensures that even if the BGP session or core links are not yet stable during the migration process, the ESI-LAG interfaces remain Up , allowing the IDFs to maintain connectivity to their local default gateways or other local resources.
* Why others are incorrect: Enabling EVPN-VXLAN before migration (Option A) does not address the isolation logic. Removing MC-LAG/Virtual Chassis links prematurely (Option B) would cause an immediate outage. The network-isolation-profile (Option D) is typically used for different loop prevention scenarios and does not override the specific core-isolation check that affects multi-homed ESIs.


NEW QUESTION # 80
Which statement about 802.1X authentication is true?

Answer: D


NEW QUESTION # 81
You want to implement a system in your network to simplify VLAN management that can also dynamically create and prune VLANs. How would you accomplish this task?

Answer: C


NEW QUESTION # 82
You are asked to configure an 802.1X solution that supports dynamic VLAN assignment. In this scenario, which two modes support using vendor-specific attributes (VSAs)? (Choose two.)

Answer: B,C

Explanation:
VSAs are supported only for 802.1X single supplicant configurations and multiple supplicant configurations.


NEW QUESTION # 83
In multicast networking, what is IGMP used for?

Answer: A


NEW QUESTION # 84
......

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