6.3.7 Check Your Understanding – The Access Layer Answers

1. Ethernet switches make their forwarding decision based on what field of the Ethernet frame?

• SFD (Start Frame Delimiter)
• Destination MAC address
• Source MAC address
• Type/Length
• FCS

2. Ethernet switches add entries to their MAC address table based on what field of the Ethernet frame?

• SFD (Start Frame Delimiter)
• destination MAC address
• source MAC address
• Type/Length
• FCS

3. When a switch receives an Ethernet frame and the destination MAC address of that frame is not in its MAC address table, the switch will:

• Add the Destination MAC address to the table.
• Add the Source MAC address to the table.
• Forward the frame out all ports except in the incoming port.
• Drop the frame.

4. Ethernet hubs are considered:

• cutting-edge
• obsolete
• a security device
• a wireless device