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The Enterprise Routing and Switching, Specialist (JNCIS-ENT) JN0-351 certification is a unique way to level up your knowledge and skills. With the Enterprise Routing and Switching, Specialist (JNCIS-ENT) JN0-351 credential, you become eligible to get high-paying jobs in the constantly advancing tech sector. Success in the Juniper JN0-351 examination also boosts your skills to land promotions within your current organization. Are you looking for a simple and quick way to crack the Juniper JN0-351 examination? If you are, then rely on JN0-351 Exam Dumps.

Juniper JN0-351 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam
Exam Number:JN0-351
Related Certifications:JNCIP-ENT
JNCIE-ENT
JNCIA-Junos
Exam Price:$200 USD
Available Languages:English
Passing Score:Not publicly disclosed (approx. 65%-70%)
Exam Format:Multiple Choice
Exam Duration:90 minutes
Real Exam Qty:65
Certificate Validity Period:3 years
Recommended Training:Juniper Learning Portal
Exam Registration:Pearson VUE Registration
Sample Questions:Juniper JN0-351 Sample Questions
Exam Way:Online proctored or onsite testing center (Pearson VUE)
Pre Condition:Valid JNCIA-Junos certification
Official Syllabus URL:https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html

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Juniper JN0-351 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Spanning Tree: Networking professionals explore the principles and advantages of the Spanning Tree Protocol (STP) to ensure loop-free topologies in Layer 2 networks.
Topic 2
  • Layer 2 Switching or VLANs: This topic deepens the understanding of Layer 2 switching operations within the Junos OS, including VLAN concepts and benefits. Experienced networking professionals gain insights into configuration, monitoring, and troubleshooting techniques essential for network segmentation and efficiency.
Topic 3
  • IS-IS: Aspiring Juniper networking professionals enhance their understanding of IS-IS routing protocols. This topic equips candidates with the knowledge to configure and monitor IS-IS systems, addressing specific exam challenges and practical applications.
Topic 4
  • OSPF: The concepts and operational details of OSPF are explored, providing tools for routing efficiency. Configuration and troubleshooting mastery ensure readiness for both the exam and complex enterprise environments.
Topic 5
  • High Availability: This topic covers the importance and application of high availability within Junos OS environments. Knowledge in configuring and managing these components is critical for ensuring robust and uninterrupted network operations, aligning with exam expectations.
Topic 6
  • Protocol Independent Routing: An essential domain for understanding routing components outside protocol dependencies, this topic enhances expertise in configuring, monitoring, and troubleshooting critical elements.

Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions (Q112-Q117):

NEW QUESTION # 112
Exhibit.

Why is this OSPF adjacency remaining in this state?

Answer: A

Explanation:
* The exhibit shows the output of the command show ospf neighbor , which displays information about the OSPF neighbors on a router 1 .
* The output shows that the OSPF neighbor with the address 172.26.1.1 and the interface ge-0/0/3.0 is in the Exstart state 1 .
* The Exstart state is the fourth state in the OSPF neighbor formation process, after Down, Init, and 2- Way states 2 . In this state, the OSPF neighbors establish a master-slave relationship and exchange database description (DBD) packets, which contain summaries of their link-state databases 2 .
* The most common reason for OSPF neighbors to be stuck in the Exstart state is an MTU mismatch between the interfaces 3 . MTU stands for maximum transmission unit, which is the largest size of a packet that can be transmitted on a network segment 4 . If the MTU values of two OSPF neighbors are different, they may not be able to exchange DBD packets successfully, as some packets may be dropped or fragmented due to their size exceeding the MTU limit 3 .
* To solve this problem, you need to ensure that the MTU values of both OSPF neighbors are the same or compatible. You can use the command show interfaces to display the MTU value of an interface 5 .
You can also use the command ping with the do-not-fragment option to test the MTU size between two routers. You can change the MTU value of an interface by using the command set interfaces interface-name mtu mtu-value in configuration mode 5 .


NEW QUESTION # 113
Exhibit.

The ispi _ inet. 0 route table has currently no routes in it.
What will happen when you commit the configuration shown on the exhibit?

Answer: A

Explanation:
The configuration shown in the exhibit is an example of a routing instance of type virtual-router. A routing instance is a collection of routing tables, interfaces, and routing protocol parameters that create a separate routing domain on a Juniper device 1 . A virtual-router routing instance allows administrators to divide a device into multiple independent virtual routers, each with its own routing table 2 .
The configuration also includes a rib-group statement, which is used to import routes from one routing table to another. A rib-group consists of an import-rib statement, which specifies the source routing table, and an export-rib statement, which specifies the destination routing table.
In this case, the rib-group name is inet-to-ispi, and the import-rib statement specifies inet.0 as the source routing table. The export-rib statement specifies ispi.inet.0 as the destination routing table. This means that the routes from inet.0 will be imported into ispi.inet.0.
Therefore, the correct answer is B. The inet.0 route table will be imported into the ispi.inet.0 route table.
References:
1 : Routing Instances Overview 2 : Virtual Routing Instances : [rib-group (Routing Options)]


NEW QUESTION # 114
Based on the traceoptions output shown in the exhibit, what is the problem with the adjacency?

Answer: C


NEW QUESTION # 115
You enable persistent MAC learning on your Juniper switch
In this scenario, which statement is correct?

Answer: A


NEW QUESTION # 116
Which two statements are correct about tunnels? (Choose two.)

Answer: A,D

Explanation:
A tunnel is a connection between two computer networks, in which data is sent from one network to another through an encrypted link. Tunnels are commonly used to secure data communications between two networks or to connect two networks that use different protocols.
Option B is correct, because tunnel endpoints must have a valid route to the remote tunnel endpoint. A tunnel endpoint is the device that initiates or terminates a tunnel connection. For a tunnel to be established, both endpoints must be able to reach each other over the underlying network. This means that they must have a valid route to the IP address of the remote endpoint 1 .
Option D is correct, because tunnels add additional overhead to packet size. Tunnels work by encapsulating packets: wrapping packets inside of other packets. This means that the original packet becomes the payload of the surrounding packet, and the surrounding packet has its own header and trailer. The header and trailer of the surrounding packet add extra bytes to the packet size, which is called overhead. Overhead can reduce the efficiency and performance of a network, as it consumes more bandwidth and processing power 2 .
Option A is incorrect, because BFD can be used to monitor tunnels. BFD is a protocol that can be used to quickly detect failures in the forwarding path between two adjacent routers or switches. BFD can be integrated with various routing protocols and link aggregation protocols to provide faster convergence and fault recovery. BFD can also be used to monitor the connectivity of tunnels, such as GRE, IPsec, or MPLS.
Option C is incorrect, because IP-IP tunnels are stateless. IP-IP tunnels are a type of tunnels that use IP as both the encapsulating and encapsulated protocol. IP-IP tunnels are simple and easy to configure, but they do not provide any security or authentication features. IP-IP tunnels are stateless, which means that they do not keep track of the state or status of the tunnel connection. Stateless tunnels do not require any signaling or negotiation between the endpoints, but they also do not provide any error detection or recovery mechanisms.
References:
1 : What is Tunneling? | Tunneling in Networking 2 : What Is Tunnel In Networking, Its Types, And Its Benefits? : [Configuring Bidirectional Forwarding Detection] : [IP-IP Tunneling]


NEW QUESTION # 117
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