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Juniper JN0-348 Exam
Enterprise Routing and Switching, Specialist (JNCIS-ENT) (Page 3 )

Updated On: 12-Jan-2026
Page 3 of 20
PDF with 94 Questions

Which statement is true about Layer 2 firewall filters on EX Series switches?

  1. They are stateful and evaluated by the forwarding plane.
  2. They are stateless and evaluated by the control plane.
  3. They are stateful and evaluated by the control plane.
  4. They are stateless and evaluated by the forwarding plane.

Answer(s): D



Which two statements about DHCP snooping are correct? (Choose two)

  1. DHCP snooping inspects all DHCP packets on untrusted ports.
  2. By default, the Junos OS treats access ports as trusted and trunk ports as untrusted.
  3. DHCP snooping uses ARP to add statically defined IP addresses to its database.
  4. The DHCP database maps IP addresses, MAC addresses, and the associated VLAN.

Answer(s): A,D



Click the Exhibit button.


Referring to the exhibit, which two statements about BGP prefixes advertised by R1 to AS 65501 are true? (Choose two.)

  1. R1 will modify the originator ID attribute in prefixes advertised to AS 65501
  2. R1 will modify the AS path attribute in prefixes advertised to AS 65501
  3. R1 will modify the next-hop attribute in prefixes advertised to AS 65501
  4. R1 will modify the cluster list attribute in prefixes advertised to AS 65501

Answer(s): A,C



Click the Exhibit button.


You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch device. Referring to the exhibit, what should be done to accomplish this task?

  1. Configure the three lab ports as edge ports
  2. Configure an input filter on interface xe-0/2/0 to discard the RSTP packets
  3. Configure the three lab ports under the protocols layer2-control bpdu-block hierarchy on the switch
  4. Configure protocols rstp with the bpdu-block-on-edge parameter for interface xe-0/2/0

Answer(s): C



Click the Exhibit button.


You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0 link between Switch-1 and Switch-2. Which statement is correct about the expected behavior?

  1. Switch-2 will remove itself from the RSTP topology
  2. Switch-2’s ge-0/0/2 port role and state will transition to root and forwarding
  3. Switch-2 will become the root bridge for a separate RSTP topology
  4. Switch-2’s ge-0/0/2 port role and state will remain as designated and forwarding

Answer(s): B



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