Convergence and Reconvergence JN0-352 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network engineer is designing a redundant Layer 2 network with two distribution switches and multiple access switches. The engineer wants to ensure that if the root bridge fails, the network converges quickly and the new root bridge is predictable. What should the engineer configure?

   • AConfigure both distribution switches with the same bridge priority.
   • BSet a lower bridge priority on one distribution switch and a higher priority on the other.
   • CConfigure all access switch uplinks as edge ports.
   • DEnable root protection on all access switch ports.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   How does a topology change notification affect the MAC address table aging time on switches?

   • AIt has no effect on MAC address aging
   • BIt lengthens the aging time to prevent MAC flapping
   • CIt shortens the aging time to allow faster relearning
   • DIt disables MAC address learning entirely
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A network engineer is configuring RSTP on a switch that connects to a legacy hub. The hub connects several end devices, and the switch port is operating in half-duplex mode. The engineer wants to ensure that the port converges correctly without causing loops. What should the engineer do?

   • AConfigure the port as an edge port to allow immediate forwarding.
   • BLeave the port in its default shared link mode, which uses legacy STP behavior.
   • CConfigure the port as a point-to-point link to force RSTP to use the rapid handshake.
   • DDisable spanning tree on the port to avoid the delay.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A switch in the core of a campus network has just experienced a link failure on its root port. The switch has an alternate port to the root bridge that was previously in the discarding state. The network uses RSTP. What happens immediately after the root port failure is detected?

   • AThe alternate port transitions directly to the forwarding state without sending any BPDUs.
   • BThe switch sends a topology change notification and waits for the max age timer to expire before using the alternate port.
   • CThe switch elects a new root bridge because the current root is no longer reachable.
   • DThe alternate port enters the listening state and then the learning state before forwarding, taking 30 seconds.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Which configuration change can trigger spanning tree reconvergence?

   • AChanging the hostname of a switch
   • BChanging the login password
   • CChanging the SNMP community string
   • DChanging the bridge priority of a switch
   Reveal Solution Discussion Select an answer first