JN0-351:Enterprise Routing and Switching, Specialist (JNCIS-ENT)덤프공부JN0-351시험자료

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Juniper JN0-351 시험요강:

주제소개
주제 1
  • Tunnels: The fundamentals of IP tunneling are emphasized, highlighting their requirements and functionalities. Mastery in configuring, monitoring, and troubleshooting tunnels equips professionals to meet the demands of the JN0-351 exam.
주제 2
  • Protocol Independent Routing: An essential domain for understanding routing components outside protocol dependencies, this topic enhances expertise in configuring, monitoring, and troubleshooting critical elements.
주제 3
  • Layer 2 Security: This topic introduces Layer 2 protection mechanisms and firewall filters to fortify network security. Practical skills in configuring, monitoring, and troubleshooting these features prepare candidates to address exam objectives and real-world challenges effectively.
주제 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.
주제 5
  • Spanning Tree: Networking professionals explore the principles and advantages of the Spanning Tree Protocol (STP) to ensure loop-free topologies in Layer 2 networks.

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Juniper JN0-351인기덤프공부 - JN0-351인증덤프공부자료

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최신 JNCIS-ENT JN0-351 무료샘플문제 (Q152-Q157):

질문 # 152
Which two events cause a router to advertise a connected network to OSPF neighbors? (Choose two.)

정답：A,C

설명：
When an OSPF adjacency is established, the router will begin to advertise its connected networks to its OSPF neighbors.
When an interface is configured with the OSPF passive option, the router will advertise the connected network but will not attempt to form OSPF adjacencies on that interface.


질문 # 153
You are using tunnels in your network. It is important that the routes be specific enough to ensure that the tunnels are established. You need to prevent a route that is new to the network from being used. In this scenario, which type of route should be used?

정답：A


질문 # 154
After receiving a BGP route, which two conditions are verified by the receiving router to ensure that the received route is valid? (Choose two)

정답：A,D

설명：
B is correct because the loops do not exist is one of the conditions that are verified by the receiving router to ensure that the received BGP route is valid. A loop in BGP means that a route has been advertised by the same AS more than once, which can cause routing instability and inefficiency1. To prevent loops, BGP uses the AS-path attribute, which lists the AS numbers that a route has traversed from the origin to the destination2. The receiving router checks the AS-path attribute of the received route and discards it if it finds its own AS number in the list2. This way, BGP avoids accepting routes that contain loops.
C is correct because the next hop is reachable is one of the conditions that are verified by the receiving router to ensure that the received BGP route is valid. The next hop is the IP address of the next router that is used to forward packets to the destination network3. The receiving router checks the next hop attribute of the received route and verifies that it has a valid route to reach it3. If the next hop is not reachable, the received route is not usable and is rejected by the receiving router3. This way, BGP ensures that only feasible routes are accepted.


질문 # 155
Click the Exhibit button.

You have configured a GRE interface, but no traffic will flow.
Referring to the exhibit, which statement is true?

정답：D

설명：
According to the Juniper documentation 1 , the source and destination addresses of a GRE tunnel interface must be in different subnets. If they are in the same subnet, the router will not be able to route the GRE packets correctly. In the exhibit, the source and destination addresses are both in the 192.168.197.0/24 subnet, which is invalid for GRE tunneling. Therefore, the correct answer is D. References: Configuring GRE Tunnel Interfaces | Junos OS


질문 # 156
Which two statements are correct about Virtual Chassis technology on Juniper EX Series switches? (Choose two.)

정답：A,D

설명：
Virtual Chassis technology allows multiple physical Juniper EX Series switches to be interconnected and managed as a single logical device with a unified control plane. Within the Virtual Chassis, one member is elected as the master Routing Engine, responsible for managing the entire Virtual Chassis, while another member serves as the backup in case of a master failure.


질문 # 157
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