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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions (Q41-Q46):

NEW QUESTION # 41
Which statement is correct about 1S IS link state PDUs?

  • A. They are used to establish adjacencies
  • B. They are used to determine whether the neighbors are Level 1 or Level 2
  • C. They are used to maintain link slid.: database synchronization
  • D. They are used to build the link state database.

Answer: D


NEW QUESTION # 42
Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)

  • A. if the IP address in the ARP packet is deemed invalid
  • B. if the requested MAC address exceeds the configured limit on the port
  • C. if the ARP packet comes from a port that has been configured as trusted
  • D. if no IP-to-MAC address entry exists in the DHCP snooping database

Answer: A,D


NEW QUESTION # 43
Which two statements are true about high availability on Junos devices? (Choose two.)

  • A. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol
    information.
  • B. BFD is faster at detecting failures than default GRE or OSPF timers.
  • C. NSR is independent of helper routers to assist the routing platform in restoring routing protocol
    information.
  • D. BFD is slower at detecting failures than default GRE or OSPF timers.

Answer: B,C

Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/concept/nsr-overview.html


NEW QUESTION # 44
Click the Exhibit button. A recent security audit indicates that peer-to-peer applications are
allowed on the guest VLAN and employees may have been using the guest VLAN for this
purpose.
You deploy the configuration shown in the exhibit, but it does not stop the peer-to-peer traffic.

In this scenario, what must you do to implement the security policy?

  • A. Attach the filter to the VLAN
  • B. Deploy storm control to block unknown unicast traffic
  • C. Use persistent MAC learning
  • D. Implement 802.1X on the guest VLAN

Answer: D


NEW QUESTION # 45
Which three mechanisms are associated with the bridging process? (Choose three.)

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

Answer: A,D,E

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


NEW QUESTION # 46
......

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