JN0-351 is an exam designed for individuals seeking the Juniper Networks Certified Specialist, Enterprise Routing and Switching (JNCIS-ENT) certification. It is an updated version of the JN0-349 exam, which has been retired. To help you prepare for the JN0-351 exam and increase your chances of passing it on the first try, Passcert is proud to release its latest Juniper JNCIS-ENT JN0-351 dumps which contain up-to-date questions that reflect the most recent exam trends, ensuring that you are well-equipped to tackle any question that comes your way. By using these Juniper JNCIS-ENT JN0-351 dumps, you can familiarize yourself with the exam format and identify areas where you need to improve. With Passcert Juniper JNCIS-ENT JN0-351 dumps, you can be confident in your ability to pass the exam and obtain your JNCIS-ENT certification.

This Enterprise Routing and Switching Certification Track enables you to demonstrate competence with networking technology in general and Juniper Networks enterprise routing and switching platforms. JNCIS-ENT, the specialist-level certification in this track, is designed for experienced networking professionals with beginner to intermediate knowledge of routing and switching implementations in Junos. The written exam verifies your basic understanding of routing and switching technologies and related platform configuration and troubleshooting skills.

 

Exam Code: JN0-351

Prerequisite Certification: JNCIA-Junos

Delivered by Pearson VUE

Exam Length: 90 minutes

Exam Type: 65 multiple-choice questions

Software Versions: Junos 23.1

 

Bridging components

Frame processing

 

Ports

Tagging

Native VLANs and voice VLANs

Inter-VLAN routing

 

Interfaces and ports

VLANs

Inter-VLAN routing  

 

STP and Rapid Spanning Tree Protocol (RSTP) concepts

Port roles and states

Bridge Protocol Data Units (BPDUs)

Convergence and reconvergence

 

STP

RSTP

 

BPDU, loop or root protection

Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard

MACsec

Storm control

 

Filter types

Processing order

Match criteria and actions

 

Protection

Port security

Storm control

Firewall filter configuration and application

 

Static, aggregate, and generated routes

Martian addresses

Routing instances, including routing information base (RIB.  groups

Load balancing

Filter-based forwarding

 

Static, aggregate, and generated routes

Load balancing

Filter-based forwarding

 

Link-state database

OSPF packet types

Router ID

Adjacencies and neighbors

Designated router (DR) and backup designated router (BDR)

OSPF area and router types

Realms

Link-state advertisement (LSA.  packet types

 

Areas, interfaces, and neighbors

Additional basic options

Routing policy application

Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

Link-state database

IS-IS Protocol Data Units (PDUs)

Type, length, and values (TLVs)

Adjacencies and neighbors

Levels and areas

Designated intermediate system (DIS)

Metrics

 

Levels, interfaces, and adjacencies

Additional basic options

Routing policy application

Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

 

BGP basic operation

BGP message types

Attributes

Route/path selection process

Internal and external BGP (IBGP and EBGP) functionality and interaction

 

Groups and peers

Additional basic options

Routing policy application

Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

 

Tunneling applications and considerations

Generic Routing Encapsulation (GRE)

IP-IP

 

GRE

IP-IP

Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

 

Link aggregation groups (LAG)

Redundant trunk groups (RTG)

Virtual chassis

Graceful restart

Graceful Routing Engine switchover (GRES)

Nonstop active routing (NSR)

Nonstop bridging (NSB. 

Bidirectional Forwarding Detection (BFD. 

Virtual Router Redundancy Protocol (VRRP)

Unified In-Service Software Upgrade (ISSU)

 

LAG and RTG

Virtual chassis

Graceful restart, GRES, NSB, and NSR

VRRP

ISSU

Troubleshooting tools (traceoptions, show commands, logging)

 

1. Which operational mode command will show the VRRP priority?

A.  show vrrp detail

B.  show interfaces vrrp extensive 

C.  show vrrp summary 

D.  monitor interfaces vrrp

Answer: A

 

2. Which command shows you the status of the redundant trunk groups configured on an EX Series switch?

A.  show interfaces 

B.  show redundant-trunk-group 

C.  show spanning-tree interface 

D.  show ethernet-switching redundant-trunk-group

Answer: D

 

3. Which two tools are useful for monitoring inter-VLAN routing? (Choose two.)

A.  vlan-trace 

B.  GVRP 

C.  ping 

D.  traceroute

Answer: C, D

 

4. You must allow both untagged and tagged VLAN traffic to enter an interface on an EX Series switch. Which two methods satisfy this requirement?

(Choose two.)

A.  Configure the port with dual-mode VLAN tagging. 

B.  Configure the port using the voice VLAN feature. 

C.  Configure the port with the native-vlan-id parameter. 

D.  Configure the port with the access parameter.

Answer: B, C

 

5. Which protocol family must you configure to enable bridging on an interface of an EX Series switch?

A.  inet 

B.  inet-bridging 

C.  ethernet-switching 

D.  ethernet-bridging

Answer: C

 

6. What are three valid bridging mechanisms? (Choose three.)

A.  Forwarding 

B.  Refreshing 

C.  Flooding 

D.  Aging 

E.  Segmenting

Answer: A, C, D

 

7. A root bridge in an RSTP network is connected to other neighboring bridges using point-to-point links. Which combination of port types can exist on the root bridge?

A.  There can be some combination of designated ports and alternate ports. 

B.  There can be some combination of root ports and alternate ports. 

C.  All ports will be designated ports. 

D.  All ports will be root ports.

Answer: C

 

8. Which two statements regarding an STP BPDU Ethernet frame are true? (Choose two.)

A.  The source MAC address is always 01:80:C2:00:00:00. 

B.  The destination MAC address is always 01:80:C2:00:00:00. 

C.  The destination MAC address is the MAC address associated with the receiving interface. 

D.  The source MAC address is the MAC address associated with the transmitting interface.

Answer: B, D

 

9. Which statement is true regarding STP?

A.  All switch ports operating in the point-to-point mode have a quicker recovery time than switch ports operating in shared mode. 

B.  All switch ports must pass through the listening and learning states before they can be placed in the forwarding state. 

C.  Edge ports are automatically placed in the forwarding state when they are operational. 

D.  Nonedge ports must receive at least one keepalive every six seconds to remain operational.

Answer: B

 

10. Which is evaluated first when selecting a BGP route?

A.  MED 

B.  Origin

C.  Local preference 

D.  AS path

Answer: C