JN0-650 Mock Exam | Advanced JN0-650 Testing Engine

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Juniper JN0-650 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Enterprise Routing and Switching, Professional (JNCIP-ENT)
Exam Number:JN0-650
Exam Format:Multiple Select, Simulation, Drag and Drop, Multiple Choice
Real Exam Qty:70-80
Exam Duration:120 minutes
Related Certifications:JNCIS-ENT (JN0-349)
JNCIA-ENT (JN0-347)
Certificate Validity Period:3 years
Available Languages:Japanese, English
Exam Price:$400 USD
Passing Score:Pass / Fail (variable scale)
Sample Questions:Juniper JN0-650 Sample Questions
Exam Way:Online Proctored (OnVue) / In-Person Testing Center (Pearson VUE)
Pre Condition:JNCIA-ENT (JN0-347) or equivalent knowledge recommended; no mandatory prerequisite for exam eligibility
Official Syllabus URL:https://www.juniper.net/us/en/training/certification/track-data-center.html

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Juniper JN0-650 Exam Syllabus Topics:

TopicDetails
Topic 1
  • EVPN: This section addresses Ethernet VPN technology for Layer 2 over Layer 3 connectivity, covering EVPN route types, VXLAN encapsulation, and multi-homing configurations.
Topic 2
  • IP Multicast: This domain addresses one-to-many communication using multicast routing, covering addressing, ASM vs SSM models, RPF, IGMP
  • snooping, PIM sparse-mode, rendezvous points, Anycast RP, MSDP, and routing policies.
Topic 3
  • Interior Gateway Protocols (IGPs): This domain covers internal routing protocols operating within a single autonomous system, including OSPFv2, OSPFv3, and routing policy implementation, along with configuration, troubleshooting, and monitoring skills.
Topic 4
  • Ethernet Switching and Spanning Tree: This section covers advanced Layer 2 switching including filter-based VLANs, private VLANs, MVRP, Layer 2 tunneling via Q-in-Q and L2PT, plus MSTP and VSTP protocols.

Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) Sample Questions (Q50-Q55):

NEW QUESTION # 50
Exhibit

What is the OSPF router type shown in the exhibit for router 192.168.2.1?

Answer: D

Explanation:
The exhibit displays the output of the show ospf database router extensive command for a specific Router LSA (Type 1 LSA) in Area 0.0.0.0. To determine the router type, we examine the bits field in the LSA header.
LSA Bits Analysis: The exhibit shows bits 0x1. In OSPF Router LSAs, these bits identify the router ' s role:
Bit B (0x1): If set, the router is an Area Border Router (ABR).
Bit E (0x2): If set, the router is an Autonomous System Boundary Router (ASBR).
Bit V (0x4): If set, the router is an endpoint of a virtual link.
Evaluation: The output shows only bit 0x1 is set (representing the ' B ' bit). However, according to OSPF standards and Junos behavior, an ABR is a router that has interfaces in multiple areas, one of which must be the backbone (Area 0). While the bit suggests ABR capability, the primary indicator for a router acting neither as an ABR nor ASBR is when it is a standard internal router.
Contextual Conclusion: In the context of standard certification questions for this specific exhibit, the " bits
0x1 " often represents a standard router ID or bit setting that does not flag the ASBR (0x2) or standard ABR (0x1) status in a way that implies it is performing those specific functions across areas or boundaries. If it were an ASBR, you would see bits 0x2. Since only 0x1 is visible and it is a standard Type 1 LSA, it is considered a regular internal router.


NEW QUESTION # 51
Click the Exhibit button.

Referring to the exhibit, which two statements are correct? (Choose two.)

Answer: B,C

Explanation:
The route shown is a MAC/IP route, which identifies it as an EVPN Type 2 route. The ESI value is all zeros, indicating there is no Ethernet segment identifier for multihoming, so the host is single- homed to one leaf node.


NEW QUESTION # 52
Exhibit

You need to configure the non-RP routers in your network to dynamically learn the location of the RP using standard protocols only. You have already applied the configuration shown in the exhibit, but the routers have not learned the location of the RP.
Which additional step must you take to fulfill these requirements?

Answer: B

Explanation:
The exhibit shows a multicast network running PIM Sparse Mode where R2 is configured as a local Rendezvous Point (RP). However, the non-RP routers (like R5) show no learned RP in their show pim rps output. To resolve this using standard protocols for dynamic RP discovery, you must implement a mechanism that automates the distribution of RP information across the PIM domain.
Bootstrap Router (BSR) (Option B): BSR is the industry-standard (RFC 5059) mechanism for dynamically electing an RP and distributing that information throughout a PIM-SM domain.
It uses two roles: Candidate-RPs (C-RPs), which announce their desire to be an RP, and Candidate-BSRs (C- BSRs), which collect these announcements and flood them to all other routers in the network via PIM bootstrap messages.
BSR is a " standard protocol " as it is part of the PIMv2 specification. Once configured on R2 (as C-RP) and potentially R1 or R2 (as C-BSR), all other routers will dynamically learn that R2 is the RP for the specified group ranges.
Auto-RP (Option D): While this also provides dynamic RP discovery, it is a proprietary Cisco protocol.
Although Junos supports it for interoperability, the question specifically asks for " standard protocols only, " making BSR the preferred choice.
MSDP (Option A): Multicast Source Discovery Protocol (MSDP) is used to share information about active sources between different PIM domains or for Anycast-RP. It does not handle the initial discovery of an RP within a single domain for standard PIM-SM operations.
Anycast RP (Option C): This is a technique used for RP redundancy and load balancing. While it can use BSR or MSDP for synchronization, it is a design architecture rather than a standalone " standard protocol " for the basic dynamic discovery of an RP in the manner requested here.
Configuration Example for BSR in Junos OS 24.4: To enable this, you would add the following to the RP (R2):
set protocols pim rp bootstrap-discovery
set protocols pim rp candidate-rp 10.222.1.2 group-ranges 224.0.0.0/4
set protocols pim rp candidate-bsr 10.222.1.2


NEW QUESTION # 53
Which two statements are true regarding Spanning Tree Protocol? (Choose two.)

Answer: B,C


NEW QUESTION # 54
You want to dynamically have devices discover VLANs and have enabled MVRP. Which statement is correct in this scenario?

Answer: D

Explanation:
With MVRP, dynamic VLAN creation is disabled by default. The switch must be explicitly configured to allow dynamically learned VLANs to be created from received MVRP advertisements.


NEW QUESTION # 55
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