Free JN0-349 Exam Braindumps (page: 7)

Page 7 of 26

Click the Exhibit button.



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

  1. R3
  2. R4
  3. R1
  4. R2

Answer(s): D

Explanation:

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.


Reference:

https://sites.google.com/site/amitsciscozone/home/juniper-junos/junos--ospf-designated-router



Which statement is correct about trunk ports?

  1. Trunk ports mast have an IRB assigned to accept VLAN tagged traffic
  2. By default, trunk ports accept only VLAN tagged traffic
  3. By default, a trunk port can have only a single VLAN assigned
  4. Trunk ports must have an IRB assigned to accept untagged traffic.

Answer(s): B



Click the Exhibit button.



Referring to the output shown in the exhibit, which two statements are true?

  1. The route is active
  2. The route is not active
  3. The route is a generate route
  4. The route is an aggregate route

Answer(s): B,C



Which two requirements must be satisfied before graceful restart work? [Choose two)

  1. a stable network topology
  2. a neighbor configured with BfD
  3. a neighbor configured with graceful restart
  4. a neighbors with an uptime greater than an hour

Answer(s): A,C

Explanation:

The primary drawback to GR is the need for protocol extensions and helper support in neighboring routers, and a stable network topology. If any neighbors do not support GR, or if other changes occur in the network, GR ends up aborting and loss results in the dataplane. Even when all goes to plan and the GR event succeeds, which means there is zero loss in the data plane, there is still control plane flap and a subsequent need for protocol reconvergence between the restarting router and its helpers, ...


Reference:

https://www.oreilly.com/library/view/juniper-mx-series/9781449358143/ch09s03.html



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Desmond commented on April 19, 2023
The questions in this exam dumps were spot-on. Easily passed my exam yesterday.
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