Bridging Components JN0-352 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   How does a bridge handle a frame whose destination MAC address is known in its forwarding database?

   • AIt forwards the frame only out the port associated with that MAC address
   • BIt floods the frame to all ports except the ingress port
   • CIt drops the frame to prevent loops
   • DIt sends the frame to the router for further processing
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A switch receives a frame on port ge-0/0/3 with source MAC 00:11:22:33:44:55. The FDB already has an entry for this MAC pointing to ge-0/0/7. What does the switch do with the FDB entry?

   • AIt drops the frame because the source MAC is already known on another port.
   • BIt keeps the entry pointing to ge-0/0/7, because the first learned port is always preferred.
   • CIt updates the entry to point to ge-0/0/3, because the source MAC is seen on a different port.
   • DIt deletes the entry and floods the frame out all ports.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What does a bridge do when it receives a frame with a source MAC address that is already in its forwarding database but on a different port?

   • AIt updates the forwarding database with the new port
   • BIt drops the frame
   • CIt sends an error message to the source
   • DIt floods the frame to all ports
   Reveal Solution Discussion Select an answer first
5. 9application · easy

   A junior engineer is explaining how a bridge forwards frames to a new team member. Which statement accurately describes the role of a bridge in a Layer 2 network?

   • AA bridge segments a network into multiple collision domains while forwarding frames based on MAC addresses.
   • BA bridge broadcasts all frames to every port, creating a single collision domain.
   • CA bridge forwards frames based on IP addresses, routing packets between different subnets.
   • DA bridge connects two different Layer 3 networks and translates between them.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   What does a bridge do when it receives a unicast frame whose destination MAC address is not in its forwarding database?

   • AIt floods the frame to all ports except the ingress port
   • BIt forwards the frame only to the port where the source MAC was learned
   • CIt drops the frame
   • DIt sends the frame to the router to resolve the destination
   Reveal Solution Discussion Select an answer first