BPDU, Loop, or Root Protection JN0-352 Practice Questions (Page 2)

Questions 6–8

1. 6foundation · easy

   Which statement correctly describes the purpose of BPDU protection on a Junos access port?

   • AIt prevents the port from becoming a root port by ignoring superior BPDUs.
   • BIt disables the port if it receives any BPDU, preventing an unauthorized switch from participating in spanning tree.
   • CIt blocks all traffic on the port if a loop is detected, ensuring the network remains stable.
   • DIt prevents the port from sending BPDUs, so the access device cannot influence the spanning-tree topology.
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A network engineer is troubleshooting a spanning-tree loop that occurs intermittently on a switch. The loop appears only when a specific link to another switch goes down and then comes back up. The engineer suspects that a port is not receiving BPDUs correctly during the transition. Which protection mechanism should be configured to automatically disable a port that stops receiving BPDUs?

   • ABPDU protection
   • BLoop protection
   • CRoot protection
   • DEdge protection
   Reveal Solution Discussion Select an answer first
3. 8application · medium

   A network administrator has a spanning-tree topology with a specific switch designated as the root bridge. The administrator wants to ensure that no other switch can become the root bridge, even if a rogue switch is connected to the network. Which protection mechanism should be enabled on the ports that connect to other switches?

   • ASpanning-tree edge
   • BBPDU protection
   • CRoot protection
   • DLoop protection
   Reveal Solution Discussion Select an answer first