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Juniper JN0-349 Exam
Enterprise Routing and Switching, Specialist (Page 8 )

Updated On: 26-Jan-2026
Page 4 of 21
PDF with 110 Questions

Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)

  1. If no IP-to-MAC address entry exists in the DHCP snooping database
  2. If the IP address in the ARP packet is deemed invalid
  3. If the requested MAC address exceeds the configured limit on the port
  4. If the ARP packet comes from a port that has been configured as trusted

Answer(s): A,B


Reference:

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/understanding-and-using-dai.html#id-understanding-arp-spoofing-and-inspection



Click the Exhibit button.


Given the route shown in the exhibit, which two prefixes contribute to the aggregate route? (Choose two.)

  1. 172.12.31.0/24
  2. 172.12.33.0/24
  3. 172.12.30.0/24
  4. 172.12.32.0/24

Answer(s): A,C



What are two methods for reducing the size of an OSPF link-state database? (Choose two.)

  1. Use unique router IDs where possible.
  2. Use identical link metrics where possible.
  3. Use point-to-point interface types where possible
  4. Use stub areas where possible.

Answer(s): C,D



Your network connect to the Internet Through two different ISPs using EBGP. You must ensure that ISP1 is the primary path used for all traffic entering your network while using ISP2 as a backup path. In this scenario, which statement is correct?

  1. You should use a lower MED value on routes sent to ISP1.
  2. You should assign a higher local preference on routers that you are sending to ISP1.
  3. You should change the next hop for all routes sent to ISP2.
  4. You should your local AS number three times on routes that you are sending to ISP2.

Answer(s): D



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

  1. blocking
  2. flooding
  3. aging
  4. filtering
  5. listening

Answer(s): B,C,D


Reference:

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



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Viewing questions 36 - 40 out of 110 questions



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