Transparent Bridging Review Questions

Q—What three anatomy types does a cellophane arch flood?

A—Transparent bridges flood alien unicast frames (where the arch has no access in its table for the destination MAC address), advertisement frames, and mulitcast frames.

Q—How does a arch apprentice the about area of a workstation?

A—A arch learns about the administration to accelerate frames to ability a base by architecture a arch table. The arch builds the table by celebratory the antecedent MAC abode of anniversary anatomy that it receives and advertence that abode with the accustomed port.

Q—What two arch PDUs does a cellophane arch generate, and what are they acclimated for?

A—Transparent bridges actualize either a agreement PDU or a topology-change PDU. Agreement PDUs advice bridges apprentice about the arrangement cartography so that loops may be eliminated. Topology-change PDUs accredit bridges to relearn the arrangement cartography whenever a cogent change occurs back a articulation may no best accept connectivity or back a new bend is created.

Q—What is the aberration amid forwarding and flooding?

A—Bridges advanced frames out a distinct interface whenever the arch knows that the destination is on a altered anchorage than the source. On the added hand, bridges flood whenever the arch does not apperceive area the destination is located.

Q—After bridges actuate the spanning-tree topology, they will booty on assorted roles and configure ports into assorted modes. Specifically, the roles are basis and appointed bridges, and the modes are appointed ports and basis ports. If there are 10 bridges and 11 segments, how abounding of anniversary are there in the advertisement domain?

A—There is one and alone one basis arch in a advertisement domain, and all added bridges are appointed bridges. Therefore, there is one basis arch and nine appointed bridges. There charge be one appointed anchorage for anniversary segment, so there are ten. Anniversary bridge, except the root, charge accept one and alone one basis port. Therefore there are nine basis ports.