DATA LINK LAYER WIRED NETWORKS
WIRED LANS ETHERNET PROTOCOL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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building a routing table that is based on the first IP address in the frame header
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using the source MAC addresses of frames to build and maintain a MAC address table
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forwarding frames with unknown destination IP addresses to the default gateway
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utilizing the MAC address table to forward frames via the destination MAC address
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examining the destination MAC address to add new entries to the MAC address table
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Detailed explanation-1: -When a frame comes in, the switch examines the Layer 2 source address to build and maintain the Layer 2 MAC address table. It examines the Layer 2 destination address to determine how to forward the frame. 04-Mar-2020
Detailed explanation-2: -A switch dynamically builds its MAC address table by examining the source MAC addresses of the frames received on a port. The switch forwards frames by searching for a match between the destination MAC address in a frame and an entry in the MAC address table.
Detailed explanation-3: -The MAC address table is where the switch stores information about the other Ethernet interfaces to which it is connected on a network. The table enables the switch to send outgoing data (Ethernet frames) on the specific port required to reach its destination, instead of broadcasting the data on all ports (flooding).
Detailed explanation-4: -To forward the frame, the switch examines the destination MAC address and compares it to addresses found in the MAC address table. If the address is in the table, the frame is forwarded out the port associated with the MAC address in the table.