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Juniper JN0-349 Exam Questions
Enterprise Routing and Switching, Specialist (Page 4 )

Updated On: 21-Feb-2026
Page 4 of 21
PDF with 110 Questions

What are two characteristics of OSPF ABRs? (Choose two.)

  1. ABRs transmit routing information between the backbone and other areas.
  2. ABRs cannot be part of the backbone and another area at the same time.
  3. ABRs inject information from outside the OSPF domain.
  4. ABRs link two OSPF areas

Answer(s): A,D

Explanation:

Area border router (ABR): An OSPF router with links in two areas, the ABR is responsible for connecting OSPF areas to the backbone. It transmits network information between the backbone and other areas.



Exhibit.


Referring to the exhibit, which configuration will force traffic to always use ae0.0 as long as it is active?









Answer(s): C

Explanation:

1. set protocols rstp disable
2. set redundant-trunk-group group name interface interface-name primary
3. set redundant-trunk-group group name interface interface-name
4. option: set redundant-trunk-group group name preempt-cutover-timer seconds

※ Rapid Spanning Tree Protocol (RSTP) is enabled by default on EX Series switches to create a loop- free topology, but an interface is not allowed to be in both a redundant trunk group and in a spanning-tree protocol topology at the same time.


Reference:

https://www.juniper.net/documentation/en_US/junos/topics/topic-map/redundant-trunk- groups.html



Exhibit.


Click the Exhibit button Referring to the exhibit, what will be the IS-IS adjacency result of the configurations?

  1. A level 1 and level 2 IS-IS adjacency will form
  2. A level 2 IS4S adjacency will form
  3. No IS-IS adjacencies will form
  4. A level 1 IS-IS adjacency will form

Answer(s): C



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

  1. router filter > VLAN filter > port filter > transmit packet
  2. port filter > VLAN filter > router filter > transmit packet
  3. receive packet > port filter > VLAN filter > router filter
  4. receive packet > router filter > VLAN filter > port filter

Answer(s): B,D



In which two STP states is a port active and a MAC address learned? (Choose two.)

  1. Blocking
  2. Forwarding
  3. Disabled
  4. Learning

Answer(s): B,D






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