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What is the JN0-349 exam like?

Enterprise Routing and Switching – Specialist (JNCIS-ENT) enables you to demonstrate the ability of network technologies in general and network routing for enterprise and switching platforms.

There is a prerequisite certification for JN0-349 – JNCIA-Junos, which means that you must first pass the JN0-104 exam. The JN0-349 exam lasts 90 minutes and has 65 multiple-choice questions.

Are there any recommended resources to prepare for the Enterprise Routing and Switching – Specialist (JNCIS-ENT) exam?

  • Junos Intermediate Routing (JIR)
  • Junos Enterprise Switching (JEX)
  • Industry/product knowledge
  • Juniper TechLibrary
  • Juniper Learning Portal
  • Pass4itSure JN0-349 exam dumps

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Juniper JN0-349 Free Questions Material Share:



In the exhibit, each IP subnet in the network is associated with a unique VLAN ID. Which action will ensure that Host C will communicate with Host A and Host B?

A. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN.
B. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs.
C. Configure an IRB interface for each VLAN and associate It with its corresponding VLAN.
D. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs

Correct Answer: A


Which three mechanisms are associated with the bridging process? (Choose three.)

A. blocking
B. flooding
C. aging
D. filtering
E. listening

Correct Answer: BCD

Explanation: https://www.juniper.net/documentation/en_US/junos/topics/topic- map/bridging-and-vlans.html


You need to a new ESXi host connected to port ge-0/0/1. One of the VMs configured with VLAN 10 is not reachable from any other device on the switch. To troubleshoot, you decide to verify of the VMs MAC address is learned properly under VLAN 10. Which command would you use in this scenario?

A. Show Ethernet-switching table vlan-id 10
B. Show interfaces ge-0/01 detail
C. Show vlans 10
D. Monitor interface ge-0/01

Correct Answer: A



Referring to the exhibit, what do the asterisks (*) indicate?

A. The entries are new.
B. The router receive the entries.
C. The entries are state.
D. The router originated the entries.

Correct Answer: D


Which statement is correct about trunk ports?

A. Trunk ports mast have an IRB assigned to accept VLAN tagged traffic
B. By default, trunk ports accept only VLAN tagged traffic
C. By default, a trunk port can have only a single VLAN assigned
D. Trunk ports must have an IRB assigned to accept untagged traffic.

Correct Answer: B


Which two sequences correctly describe the processing order of firewall filters on an EX Series switch? (Choose two.)

A. router filter > VLAN filter > port filter > transmit packet
B. port filter > VLAN filter > router filter > transmit packet
C. receive packet > port filter > VLAN filter > router filter
D. receive packet > router filter > VLAN filter > port filter

Correct Answer: BD


Click the Exhibit button.

Referring to the exhibit, which configuration change is needed for an IS-IS Level 1 adjacency between R1 and R2?

A. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R2
B. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R1
C. Enable Level 2 on R1\\’s ge-0/0/1 interface
D. Disable Level 2 on R2\\’s ge-0/0/1 interface

Correct Answer: A


Click the Exhibit button.

Referring to the exhibit, which router becomes the OSPF DR when all routers are powered on at the same time?

A. R3
B. R4
C. R1
D. R2

Correct Answer: D

Explanation: https://sites.google.com/site/amitsciscozone/home/juniper-junos/junos–ospf-designated-router OSPF DR
Election: On a broadcast network, DR election takes place based on OSPF router priority. The Priority is set to 128 by default by JUNOS software. In case of a tie, the router with highest router-id is elected the DR.


Exhibit is Missing
Which two statements are correct. (Choose two.)

A. Route 2001:2244:3311:321:233::.128 has been prepended.
B. The active path to2001:2244:3311:321:233::.128 will exist using interface irb.433.
C. Route 2001:2244:3311:321:233::.128 will be advertised to an EBGP peer in AS 62553.
D. The AS path shows two hops to their IBGP routers within autonomous system 62553.

Correct Answer: AB


What are two reasons for configuring more than one VLAN on a switch? (Choose two.)

A. A group of clients requires that security be applied to traffic entering or exiting the group\’s devices
B. A group of devices must forward traffic across a WAN.
C. A group of devices are connected to the same Layer 3 network.
D. A group of clients requires that the group\’s devices receive less broadcast traffic than they are currently receiving

Correct Answer: AD


You configured a GRE that traverses a path using default MTU settings. You want to ensure that packets are not dropped or fragmented. In this scenario. What is the maximum packet size that would traverse the GRE tunnel?

A. 1500
B. 1400
C. 1524
D. 1476

Correct Answer: D


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

A. virtual routing and forwarding
B. virtual router
C. forwarding
D. virtual switch

Correct Answer: BC

Explanation: https://www.juniper.net/documentation/en_US/junos/topics/example/firewall- filter-option-filterbasedforwarding-example.html



Which statement is correct about the ISO NET address shown in the exhibit?

A. The authority and format identifier (AFI) is 00.
B. The area identifier is 0001.
C. The system identifier is 6800.1001.00.
D. This is not a valid NET address.

Correct Answer: B

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