Configure, Monitor, or Troubleshoot Layer 2 Protection and Port Security JN0-352 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   How does a port recover from a loop-inconsistent state?

   • AThe port remains in loop-inconsistent state permanently
   • BThe administrator must manually re-enable the port
   • CThe switch must be rebooted
   • DThe port automatically recovers when BPDUs are received again
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What does it indicate when a root-protected port is in a blocked state?

   • AThe port is experiencing a physical link failure
   • BThe port is functioning normally as a designated port
   • CThe port is disabled by BPDU protection
   • DThe port has received a superior BPDU and is being protected
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which Junos operational command shows whether a port is in a loop-inconsistent state?

   • Ashow spanning-tree interface
   • Bshow log messages | match loop-protection
   • Cshow ethernet-switching table
   • Dshow interfaces ge-0/0/1 extensive
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which violation mode in port security allows traffic from unauthorized MAC addresses to be dropped while keeping the interface operational?

   • ARestrict
   • BDisable
   • CProtect
   • DShutdown
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A network engineer is configuring a spanning-tree topology where a specific distribution switch is intended to be the root bridge. The engineer wants to ensure that no other switch can become the root by sending superior BPDUs on the designated ports connecting to access switches. Which configuration should be applied on those designated ports?

   • AEnable root protection on the designated ports so that if a superior BPDU is received, the port transitions to a root-inconsistent state.
   • BConfigure the ports as edge ports to immediately transition to forwarding and ignore BPDUs.
   • CSet a higher bridge priority on the access switches to ensure they cannot become the root.
   • DEnable BPDU protection on the designated ports to shut them down if any BPDU is received.
   Reveal Solution Discussion Select an answer first