Limited-Time Offer: Enjoy 60% Savings! - Ends In 0d 00h 00m 00s Coupon code: 60OFF
Welcome to QA4Exam
Logo

- Trusted Worldwide Questions & Answers
Mail Us support@qa4exam.com
0
Menu

Most Recent Juniper JN0-351 Exam Questions & Answers


Prepare for the Juniper Enterprise Routing and Switching, Specialist exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Juniper JN0-351 exam and achieve success.

The questions for JN0-351 were last updated on Dec 21, 2024.
  • Viewing page 1 out of 13 pages.
  • Viewing questions 1-5 out of 65 questions
Get All 65 Questions & Answers
Question No. 1

An update to your organization's network security requirements document requires management traffic to be isolated in a non-default routing-instance. You want to implement this requirement on your Junos-based devices.

Which two commands enable this behavior? (Choose two.)

Show Answer Hide Answer
Correct Answer: C, D

To isolate management traffic in a non-default routing-instance on Junos-based devices, you can use theset system management-instanceandset routing-instances mgmt_junoscommands12.

set system management-instance: This command associates the management interface (usually named fxp0 or em0 for Junos OS, or re0:mgmt-* or re1:mgmt-* for Junos OS Evolved) with the non-default virtual routing and forwarding (VRF) instance1.After you configure the non-default management VRF instance, management traffic no longer has to share a routing table with other control traffic or protocol traffic1.

set routing-instances mgmt_junos: This command creates a new routing instance namedmgmt_junos.The name of the dedicated management VRF instance is reserved and hardcoded asmgmt_junos; you cannot configure any other routing instance by the namemgmt_junos1.

Therefore, options C and D are correct.Options A and B are not correct because they attempt to assign an interface to themgmt_junosrouting instance, which is not necessary for isolating management traffic1.


Question No. 2

Which two BGP attributes must be supported by all BGP implementations and must be included in every update? (Choose two.)

Show Answer Hide Answer
Correct Answer: A, C

BGP attributes are properties that BGP uses for route advertisement, path selection, and loop prevention1.There are four categories of BGP attributes123:

Well-known mandatory: Must be recognized by all BGP routers, present in all BGP updates, and passed on to other BGP routers123.

Well-known discretionary: Supported by all BGP implementations, and are optionally included in BGP updates1.

Optional transitive: May not be supported by all implementations of BGP1.

Optional non-transitive: May not be supported by all implementations of BGP1.

The well-known mandatory attributes must be supported by all BGP implementations and must be included in every update123.These include the AS path and next hop attributes23. Therefore, options A and C are correct.


Question No. 3

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

Show Answer Hide Answer
Correct Answer: A, D

Ais correct because when an OSPF adjacency is established, a router will advertise a connected network to OSPF neighbors.An OSPF adjacency is a logical relationship between two routers that agree to exchange routing information using the OSPF protocol1.To establish an OSPF adjacency, the routers must be in the same area, have compatible parameters, and exchange hello packets1.Once an OSPF adjacency is formed, the routers will exchange database description (DBD) packets, which contain summaries of their link-state databases (LSDBs)1.The LSDBs include information about the connected networks and their costs2. Therefore, when an OSPF adjacency is established, a router will advertise a connected network to OSPF neighbors through DBD packets.

Dis correct because when a static route to the 224.0.0.5 address is created, a router will advertise a connected network to OSPF neighbors.The 224.0.0.5 address is the multicast address for all OSPF routers3.A static route to this address can be used to send OSPF hello packets to all OSPF neighbors on a network segment3.This can be useful when the network segment does not support multicast or when the router does not have an IP address on the segment3.When a static route to the 224.0.0.5 address is created, the router will send hello packets to this address and establish OSPF adjacencies with other routers on the segment3. As explained above, once an OSPF adjacency is formed, the router will advertise a connected network to OSPF neighbors through DBD packets.


Question No. 4

Exhibit

Your BGP neighbors, one in the USA and one in France, are not establishing a connection with each other.

Referring to the exhibit, which statement is correct?

Show Answer Hide Answer
Correct Answer: B

The exhibit shows the configuration of BFD liveness detection for BGP at the global level, which applies to all BGP neighbors by default1.However, this configuration does not specify the session mode, which determines whether BFD uses single-hop or multihop mode to communicate with a neighbor2.

For single-hop BGP neighbors, which are directly connected on the same subnet, the session mode can be either automatic or single-hop.For multihop BGP neighbors, which are not directly connected and require multiple hops to reach, the session mode must be multihop2.

Since your BGP neighbors are in different countries, they are likely to be multihop neighbors.Therefore, you need to configure the session mode as multihop for each neighbor individually at the [edit protocols bgp group group-name neighbor address bfd-liveness-detection] hierarchy level2. For example:

protocols { bgp { group usa { neighbor 192.0.2.1 { bfd-liveness-detection { session-mode multihop; } } } group france { neighbor 198.51.100.1 { bfd-liveness-detection { session-mode multihop; } } } } }

If you do not configure the session mode for multihop neighbors, BFD will use the default mode of automatic, which will try to use single-hop mode and fail to establish a BFD session with the remote neighbor2. This will prevent BGP from using BFD to detect liveliness and failover.

Therefore, the answerBis correct, as you need to configure the BFD liveness detection on the BGP neighbor level with the appropriate session mode for multihop neighbors.


Question No. 5

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

Show Answer Hide Answer
Correct Answer: B, D

Junos devices support various types of tunnels for different purposes12.

Option B is correct.Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links over an Internet Protocol network1.Junos devices support GRE tunnels1.

Option D is correct.IPsec (Internet Protocol Security) is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session1.Junos devices support IPsec tunnels1.

Option A is incorrect. Spanning Tree Protocol (STP) is not a type of tunnel.It's a network protocol designed to prevent loops in a bridged Ethernet local area network2.

Option C is incorrect.While Junos devices do support IP-IP (also known as IP tunneling), it's not supported on all Junos devices1.


Unlock All Questions for Juniper JN0-351 Exam

Full Exam Access, Actual Exam Questions, Validated Answers, Anytime Anywhere, No Download Limits, No Practice Limits

Get All 65 Questions & Answers
Explore Other Juniper Exams