Sample JN0-351 Questions Answers, Exam JN0-351 Tutorials

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Juniper JN0-351 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 2
  • 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.
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
  • Protocol Independent Routing: An essential domain for understanding routing components outside protocol dependencies, this topic enhances expertise in configuring, monitoring, and troubleshooting critical elements.
Topic 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.
Topic 6
  • 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 7
  • 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.

>> Sample JN0-351 Questions Answers <<

Exam JN0-351 Tutorials - JN0-351 Latest Test Questions

The Enterprise Routing and Switching, Specialist (JNCIS-ENT) (JN0-351) practice questions (desktop and web-based) are customizable, meaning users can set the questions and time according to their needs to improve their discipline and feel the real-based exam scenario to pass the Juniper JN0-351 Certification. Customizable mock tests comprehensively and accurately represent the actual JN0-351 certification exam scenario.

Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions (Q12-Q17):

NEW QUESTION # 12
You want to use filter-based forwarding (FBF) to forward traffic sourced from subnet 10.0.0.0/24 to a specific destination.
Which two routing instance types would enable you to accomplish this task? (Choose two.)

Answer: B,C


NEW QUESTION # 13
Which mechanism is used to share routes between routing tables?

Answer: D


NEW QUESTION # 14
Exhibit

Which command displays the output shown in the exhibit?

Answer: D

Explanation:
* The output shown in the exhibit is a brief display of the Ethernet switching table, which shows the learned Layer 2 MAC addresses for each VLAN and interface 1 .
* The command show ethernet-switching table displays the Ethernet switching table with brief information, such as the destination MAC address, the VLAN name, the forwarding state, and the interface name 1 .
* The command show route forwarding-table displays the routing table information for each protocol family, such as inet, inet6, mpls, iso, and so on 2 . It does not show the Ethernet switching table or the MAC addresses.
* The command show ethernet-switching table extensive displays the Ethernet switching table with extensive information, such as the destination MAC address, the VLAN name, the forwarding state, the interface name, the VLAN index, and the tag type 1 . It shows more details than the brief output shown in the exhibit.
* The command show route forwarding-table family ethernet-switching displays the routing table information for the ethernet-switching protocol family, which shows the destination MAC address, the next-hop MAC address, and the interface name 3 . It does not show the VLAN name or the forwarding state.


NEW QUESTION # 15
Which two statements are correct about OSPF area types? (Choose two.)

Answer: C,D

Explanation:
A stub area blocks Type 5 external LSAs from being flooded into it, relying instead on a default route to reach external destinations. A not-so-stubby area (NSSA) is a variation that allows external routes to be imported locally as Type 7 LSAs, which the Area Border Router (ABR) then translates into Type 5 LSAs for propagation into the backbone.


NEW QUESTION # 16
You are concerned about spoofed MAC addresses on your LAN.
Which two Layer 2 security features should you enable to minimize this concern? (Choose two.)

Answer: C,D

Explanation:
A is correct because dynamic ARP inspection (DAI) is a Layer 2 security feature that prevents ARP spoofing attacks. ARP spoofing is a technique that allows an attacker to send fake ARP messages to associate a spoofed MAC address with a legitimate IP address. This can result in traffic redirection, man-in-the-middle attacks, or denial-of-service attacks. DAI validates ARP packets by checking the source MAC address and IP address against a trusted database, which is usually built by DHCP snooping1. DAI discards any ARP packets that do not match the database or have invalid formats1.
C is correct because DHCP snooping is a Layer 2 security feature that prevents DHCP spoofing attacks.
DHCP spoofing is a technique that allows an attacker to act as a rogue DHCP server and offer fake IP addresses and other network parameters to unsuspecting clients. This can result in traffic redirection, man-in-the-middle attacks, or denial-of-service attacks. DHCP snooping filters DHCP messages by classifying switch ports as trusted or untrusted. Trusted ports are allowed to send and receive any DHCP messages, while untrusted ports are allowed to send only DHCP requests and receive only valid DHCP replies from trusted ports2. DHCP snooping also builds a database of MAC addresses, IP addresses, lease times, and binding types for each client2.


NEW QUESTION # 17
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