JN0-351 Testking Exam Questions, Valid Exam JN0-351 Vce Free

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Juniper JN0-351 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Enterprise Routing and Switching, Specialist (JNCIS-ENT)
Exam Number:	JN0-351
Exam Duration:	90 minutes
Certificate Validity Period:	3 years
Available Languages:	English
Related Certifications:	JNCIS-ENT
Real Exam Qty:	65
Exam Price:	$300 USD
Passing Score:	Not specified (Pass/Fail status available immediately)
Exam Format:	Multiple-choice questions
Sample Questions:	Juniper JN0-351 Sample Questions
Exam Way:	Pearson VUE testing centers (In-person)
Pre Condition:	Recommended: 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:

Topic	Details
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	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 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	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 5	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.
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 (Q18-Q23):

NEW QUESTION # 18
Which two statements are correct about Q-in-Q tunneling on Juniper EX Series switches?
(Choose two.)

A. Q-in-Q is used to extend Layer 2 VLANs transparently across a service provider network.
B. Q-in-Q can only be used with untagged traffic.
C. Q-in-Q adds an additional 802.1Q VLAN tag to already-tagged customer traffic.
D. Q-in-Q removes the customer VLAN tag entirely before forwarding.

Answer: A,C

Explanation:
Q-in-Q (IEEE 802.1ad-style tunneling) works by adding a second, outer 802.1Q VLAN tag to already VLAN-tagged customer traffic, allowing a service provider to transparently transport multiple customer VLANs across their network using a single outer VLAN tag per customer, without needing visibility into or interference with the customer's inner VLAN tags.

NEW QUESTION # 19
Which three protocols support BFD? (Choose three.)

A. RSTP
B. OSPF
C. BGP
D. FTP
E. LACP

Answer: B,C,E

Explanation:
https://www.juniper.net/documentation/us/en/software/junos/high-availability/topics/topic-map/bfd- configuring.html

NEW QUESTION # 20
You have DHCP snooping enabled but no entries are automatically created in the snooping database for an interface on your EX Series switch. What are two reasons for the problem?
(Choose two.)

A. The device that is connected to the interface has a static IP address.
B. MAC limiting is enabled on the interface.
C. Dynamic ARP inspection is enabled on the interface.
D. The device that is connected to the interface has performed a DHCPRELEASE.

Answer: A,D

Explanation:
If the device connected to the interface has performed a DHCPRELEASE, it releases its IP address back to the DHCP server, resulting in the removal of the corresponding DHCP snooping entry.
If the device connected to the interface is using a static IP address, it will not send DHCP requests, and therefore no entries will be created in the DHCP snooping database for that device.

NEW QUESTION # 21
You are configuring an IS-IS IGP network and do not see the IS-IS adjacencies established. In this scenario, what are two reasons for this problem? (Choose two.)

A. MTU is not at least 1492 bytes.
B. The lo0 interface is not included as an IS-IS interface.
C. The Level 2 routers have mismatched areas.
D. IP subnets are not a /30 address.

Answer: A,B

Explanation:
Option A suggests that the MTU is not at least 1492 bytes. This is correct because IS-IS requires a minimum MTU of 1492 bytes to establish adjacencies. If the MTU is less than this, IS-IS adjacencies will not be established.
Option D suggests that the lo0 interface is not included as an IS-IS interface. This is also correct because the loopback interface (lo0) is typically used as the router ID in IS-IS. If the loopback interface is not included in IS-IS, it could prevent IS-IS adjacencies from being established.

NEW QUESTION # 22
Which two types of tunnels are able to be created on all Junos devices? (Choose two.)

A. STP
B. GRE
C. IP-IP
D. IPsec

Answer: B,C

Explanation:
GRE tunnels can be created on all Junos devices. GRE is a tunneling protocol that encapsulates a wide variety of network layer protocols inside virtual point-to-point links.
IP-IP tunnels can also be created on all Junos devices. IP-IP tunneling is used to encapsulate IP packets within IP packets, providing a simple way to tunnel IP traffic.

NEW QUESTION # 23
......

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