COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gateway
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Bridge
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Repeater
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Media converter
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Detailed explanation-1: -Port security enables you to configure each switch port with a unique list of the MAC addresses of devices that are authorized to access the network through that port.
Detailed explanation-2: -RSTP prevents network loops by blocking redundant ports. A blocked port will still receive data, but will not send that data out to other devices on the network. This ensures that switches will receive only a single copy of a packet. If any of the active paths fail, one of the blocked ports will be used.
Detailed explanation-3: -If the destination MAC address is not in the table, the switch forwards the frame out all ports except the incoming port. This is called an unknown unicast. As shown in Figure 7-16, the switch does not have the destination MAC address in its table for PC-D, so it sends the frame out all ports except port 1.