Certified Juniper Specialist: Ace JN0-349 the top best Exam Now!

Certified Juniper Specialist: Ace JN0-349 Exam Now!
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Certified Juniper Specialist: Ace JN0-349 Exam Now!


The JN0-349 exam for the Juniper Data Center Certificate and Juniper Enterprise Routing and Switching Certificate is among the most affordable and demanding examinations. Students must select authentic exam questions if they want to save time, effort, and cash on the Juniper JN0-349 exam. You can pass the JN0-349 exam with the help of CertMagic, one of the leading providers of Juniper JN0-349 test questions.

Juniper’s JNCIS certification course allows you to demonstrate your knowledge of networking technologies in standard and Juniper Networks corporate routing & switching systems. JNCIS-ENT, the specialist-level accreditation in the JNCIS certification track, is ideal for experienced networking professionals with a basic to intermediate grasp of Junos routing and switching solutions. The Juniper JNCIS-ENT JN0-349 exam confirms your basic understanding.

Continue reading and exploring to learn how to become a certified Juniper Specialist by passing the Juniper JN0-349 exam in 2024.

What is the JN0-349 Exam?

The JN0-349 Exam covers a variety of subjects, including routing methods, security, and network administration. It is designed for people with a good grasp of routing and switching fundamentals and prior experience utilizing Juniper enterprise solutions.

Individuals preparing for the JN0-349 Exam should thoroughly grasp Juniper’s routing & switching platforms, including the MX Series, EX Series, and QFX Series. They should also understand Juniper’s OS, Junos, and routing protocols, including OSPF and BGP.

The JN0-349, also called the Enterprise Routing & Switching Specialist (JNCIS-ENT), allows Juniper to examine a wide range of subjects, as do every test.

That implies that understanding the bulk of JN0-349 exam material is essential because the test is given at random on the numerous subjects that are accessible. Be aware. However, that experience needs frequently exist because they have observed the ordinary individual and what is necessary. You can always push past it to succeed with the JN0-349, but it will require more effort.

Juniper Networks Certified Enterprise Routing & Switching Specialist JN0-349 Exam Details

Here are the details for the Juniper JN0-349 exam:

  • Exam Name: Juniper Enterprise Routing and Switching
  • Exam Code: JN0-349
  • Number of Questions: 65
  • Exam Duration: 90 minutes

JNCIS-ENT JN0-349 Exam Course Outline

Here is the course outline for the JN0-349 exam you must know before taking the actual exam:

  1. Layer 2 switching, or VLANs

  • Identify the principles, activities, or functions of Layer 2 shifting for the Junos operating system.
  • Bridging elements
  • Frame processing
  • Describe the ideas, advantages, and functions of VLANs:
  • Ports
  • Tagging
  • Native and Voice VLANs
  • Inter-VLAN Routing
  • Demonstrate understanding of Layer 2 switching or VLANs configuration, monitoring, and troubleshooting:
  • Interfaces and Outlets
  • VLANs
  • InterVLAN Routing
  1. Spanning Tree

  • Describe the ideas, advantages, procedures, or functions of the Spanning Tree Protocol (STP).
  • The STP and Rapid Spanning Tree Protocol (RSTP) principles
  • Port roles and states.
  • Bridge Protocol Data Units (BPDU)
  • Convergence and Reconvergence
  • Demonstrate expertise in Spanning Tree configuration, monitoring, and troubleshooting.
  • STP
  • RSTP
  • Layer 2 security.
  • Identify the principles, advantages, or operations of the following Layer 2 defense or security features:
  • BPDU, loop, and root protection
  • Port security options include MAC limiting, DHCP surveillance, Dynamic ARP investigation (DAI), and IP source guard (MACsec).
  • Storm control
  • Identify the ideas, advantages, and operations of Layer 2 firewall filters:
  • Filter Types
  • Processing the order.
  • Match the requirements and actions.
  • Show how to configure, monitor, or debug Layer 2 security:
  • Protection
  • Port security
  • Storm control
  • Firewall filter setup and application.
  1. Protocol-independent routing

  • Identify the concepts, processes, or functions of the following protocol-independent routing elements:
  • Static, aggregated and created routes
  • Martian addresses
  • Routing instances include routing information base (RIB) groupings.
  • Load balance
  • Filter-Based Forwarding
  • Demonstrate competence in configuring, monitoring, and troubleshooting different protocol-independent routing components.
  • Static, aggregated, and created routes.
  • Load balance
  • Filter-Based Forwarding
  1. OSPF

  • Describe the ideas, procedures, or functions of OSPF:
  • Link-state database.
  • OSPF packet types.
  • Router ID
  • Adjacent areas and neighbors
  • Designated router (DR), backup dedicated router (BDR)
  • OSPF Area and Router Types
  • Realms
  • Packet types for Link-state advertisements (LSA)
  • Demonstrate understanding of OSPF configuration, monitoring, and troubleshooting:
  • Areas, interfaces, and neighbors.
  • Additional basic choices.
  • Routing Policy Application
  • Debugging tools (ping, traceroute, trace options, display commands, and logging)
  1. IS-IS

  • Describe the ideas, procedures, or functions of IS-IS:
  • Link-state database.
  • IS-IS Protocol Data Units (PDU)
  • Type, length, and value (TLVs)
  • Adjacent areas and neighbors
  • Levels and Areas
  • Designated intermediate system (DIS) metrics.
  • Show that you understand how to configure, monitor, and debug IS-IS:
  • Levels, Interactions, and Adjacencies
  • Additional basic choices.
  • Routing Policy Application
  • Debugging tools (ping, traceroute, trace options, display commands, and logging).
  1. BGP

  • Describe the ideas, activities, or functions of BGP:
  • BGP Basic Operation
  • BGP Message Types
  • Qualities
  • Route/path selection procedure
  • Internal and exterior BGP (IBGP and EBGP) capabilities and interaction

Show that you understand how to configure, monitor, and debug BGP:

  • Groups and Peers
  • Additional basic choices.
  • Routing Policy Application
  • Debugging tools (ping, traceroute, traceoptions, display commands, and logging).
  1. Tunnels

  • Identify the ideas, needs, or functionalities of IP tunneling:
  • Tunneling Applications and Concerns
  • Generic routing encapsulating (GRE)
  • IP-IP
  • Demonstrate understanding of IP tunnel configuration, monitoring, and troubleshooting:
  • GRE
  • IP-IP
  • Debugging tools (ping, traceroute, trace options, display commands, and logging).
  • High availability.
  • Identify the principles, advantages, applications, or needs for high availability in a Junos OS system.
  • Link Aggregation Groups (LAGs)
  • Redundant trunk groups (RTGs)
  • Virtual Chassis
  • Graceful restart.
  • Gentle Routing Engine Switchover (GRES)
  • Nonstop Active Routing (NSR)
  • Nonstop Bridging (NSB)
  • Bidirectional Forwarding Detection (BFD).
  • Virtual Router Redundancy Protocol (VRRP).
  • Unified In-Service Software Upgrades (ISSU)
  • Show that you can configure, monitor, and troubleshoot high-availability components.
  • LAG & RTG
  • Virtual Chassis
  • Graceful restart, GRES, NSB and NSR
  • VRRP
  • ISSU
  • Debugging tools (trace options, display commands, and logging)

Top 10 Strategies for JNCIS-ENT JN0-349 Exam Preparation

Certified Juniper Specialist: Ace JN0-349 Exam Now!

  1. Create a Timetable.

Creating a schedule is an essential stage in any JN0-349 exam preparation. It provides a foundation for the necessary preparations and helps you to arrange your time properly. Creating a study calendar is also an excellent method to organize your daily preparation and disperse your responsibilities.

  1. Sort your topics in order of importance.

Give extra attention to the things you find difficult. Set aside additional time to learn more challenging ideas. Remember that you do not have to devote a similar amount of time to each JN0-349 exam topic. Spend extra time where you need to, and you will not be surprised by the test.

  1. Obtain suitable study materials.

When preparing for the JNCIS-ENT JN0-349  test, you must discover relevant study resources, as learning from genuine and up-to-date study materials is critical. You may purchase study aids and eBooks, participate in a training session, etc. To get the necessary study resources, seek assistance from friends or peers who completed this test.

  1. Attend the necessary instruction.

It is critical to attend a suggested course to learn all of the JN0-349 exam ideas. Juniper offers training to help you on your preparatory journey. You will gain a compact understanding of each idea by attending the prescribed training.

  1. Write Short Notes

When studying for tests, taking brief notes on relevant facts is beneficial. This makes your revisions easier. Making notes helps you recall information more readily. You may then utilize your notes in your own words and convert the textual knowledge into postcards for last-minute review.

  1. Take JNCIS-ENT JN0-349 Exam practice tests.

It has now been proved that taking practice tests improves your exam performance. The JNCIS-ENT mock test can help you improve your exam abilities and performance. You will master the content and psychologically prepare to ace the JN0-349 exam.

  1. Schedule the JN0-349  exam.

Arrange your exam when you believe you have mastered all of the subjects. Determine the time to complete the curriculum, then schedule your test. If you are a professional who works, ensure you have enough time to balance your academics and employment.

  1. Teach JN0-349 JNCIS-ENT Topics to Someone

Teaching someone is the finest technique for reviewing previously learned material. Explain or educate to a friend or colleague; this will help you revise. Furthermore, this will assist you in determining whether or not you have comprehended the knowledge.

  1. Take frequent breaks.

You can’t study for hours at a time. Working in a straight line for more than an hour isn’t easy. After a full hour of learning the JN0-349 exam, take a five- to ten-minute break. Furthermore, studying for extended hours is not recommended because long-term information retention is nearly meaningless.

  1. Eat healthy foods and stay hydrated.

You must consume nutritious foods throughout your preparation. Keep your body and brain healthy by eating fresh, natural, vitamin-rich foods that are good for you and improve your memory and focus. Drink lots of fluids when studying for the JNCIS-ENT JN0-349 exam and during it. Staying hydrated is essential and boosts your overall good energy.

JNCIS-ENT JN0-349 Exam Sample Questions

Here are the sample questions for the JNCIS-ENT JN0-349 exam that you must master before taking the actual exam in 2024:

Question 1:

Your BGP router gets routes from two upstream ISPs, ISP A and ISP B.

In this circumstance, what adjustment would you make to favor routes from ISP A?

  1. Set the local-preference property for all routes received from ISP A to 200, whereas all routes obtained from ISP B use the standard local-preference value of 100.
  2. Prepend the AS route to all routes received from ISP A, whereas all routes acquired from ISP B use the default AS path.
  3. Set the MED value to 1 for all routes from ISP A, leaving all routes from ISP B with no MED value.
  4. Change the local-preference characteristic for all routes from ISP A to 50, but all routing received from ISP B retains the default local-preference amount of 100.

Question 2:

Each PC & IP phone in your network connects to a switch using the same port. All inbound data traffic is unidentified and belongs to the v10 VLAN. However, traffic from IP phones is tagged with a VLAN ID of 20 and should be routed to the v20 VLAN on the switch.

In this situation, which statement is correct?

  1. Turn on the voice VLAN functionality on the incoming interfaces and designate the v20 VLAN.
  2. You must activate and allocate an IRB interface to the v10 and v20 VLANs.
  3. You must activate LLDP-MED on all incoming interfaces and allocate the v20 VLAN.
  4. Enable the guest VLAN functionality on incoming interfaces and allocate the v20 VLAN.

Question 3:

When an EX Series switch gets a frame with a specified destination MAC address, what is the intended action?

  1. The packet is sent out to all ports allocated to the related VLAN save the ingress port from whence it was received.
  2. The frame is transmitted to all ports belonging to all specified VLANs except for the ingress port where it was received.
  3. The frame is routed across all trunk ports connected with the ingress VLAN, regardless of whether or not a matching MAC address is found in the bridge information table.
  4. The packet is transmitted from the egress port using a destination MAC address from the bridge table linked with the ingress VLAN.

Question 4:

Which two claims concerning the Junos operating system’s default load-balancing behavior are correct? (Choose two.)

  1. By standard, the Junos OS does per-packet load balancing.
  2. By default, the Junos OS includes numerous equal-cost next hops in the relaying table for a destination prefix.
  3. By default, the Junos OS chooses one of the equal-cost next hops for receiving destination prefixes.
  4. By standard, all Packet Routing Engine slots on the Junos device have the same hash value.

Question 5:

You are setting IBGP and must guarantee that reachability between participating routers remains constant, even if their physical configuration changes.

Which two steps should you take in this situation? (Choose two.)

  1. Configure DHCP across every IBGP device.
  2. Set up an IGP inside your IBGP network.
  3. Configure static routes for all IBGP peers.
  4. Set IBGP peerings for the loopback addresses.


Many applicants find the JNCIS-ENT JN0-349 exam methodology terrible, but it doesn’t need to be! Follow the JN0-349 exam methods above to improve your learning and avoid stress. This JN0-349 exam will undoubtedly propel your career to an additional level. A practice test might help you focus on achieving the Juniper certification.

Perhaps this is the start of your journey toward certification, or maybe you’re returning for another round. We hope you find this test challenging, educating, and preparing you to pass the JN0-349 exam. If this is your initial study guide, take time to unwind. It might be the first step toward a new, higher-paying job and a fantastic career. Comment below with your queries regarding the JN0-349 exam and get the best response from our skilled Juniper expert.

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