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156-816.61 · Question #37

Virtual Switches make packet-forwarding decisions based on which of the following?

The correct answer is A. MAC Address. Virtual switches operate at Layer 2 (Data Link) of the OSI model, making forwarding decisions based on MAC addresses - they maintain a MAC address table to determine which port to send frames out of, just like physical switches. IP addresses (B) and routing tables (C) are Layer…

VSX Architecture and Components

Question

Virtual Switches make packet-forwarding decisions based on which of the following?

Options

  • AMAC Address
  • BIP Address
  • CRouting Table
  • DSubnet mask
  • ETraffic Flow Direction

How the community answered

(61 responses)
  • A
    90% (55)
  • B
    3% (2)
  • C
    2% (1)
  • D
    5% (3)

Explanation

Virtual switches operate at Layer 2 (Data Link) of the OSI model, making forwarding decisions based on MAC addresses - they maintain a MAC address table to determine which port to send frames out of, just like physical switches. IP addresses (B) and routing tables (C) are Layer 3 concepts used by routers, not switches. Subnet masks (D) are used for IP network segmentation and have no role in switch forwarding logic. Traffic flow direction (E) is not a forwarding criterion - switches are direction-agnostic and simply learn which MAC lives on which port.

Memory tip: Think "Switches = Street address (MAC)" vs. "Routers = Region/ZIP code (IP)" - switches know the specific device address on their local segment, routers know how to reach distant networks.

Topics

#Virtual Switching#MAC Address Forwarding#Layer 2 Operations#VSX Components

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