Multiple copies of the same unicast frame are likely to be transmitted in a switched LAN in which circumstance?
A. when a dual ring topology is in use
B. after broken links are re-established
C. when upper-layer protocols require high reliability
D. in an improperly implemented redundant topology
Answer:D
Multiple copies of the same unicast frame are likely to be transmitted in a switched LAN in which circumstance?
A. when a dual ring topology is in use B. after broken links are re-established C. when upper-layer protocols require high reliability D. in an improperly implemented redundant topology