What is a similarity between Layer 2 and Layer 3 switches?

August 27, 2021 by Admin

What is a similarity between Layer 2 and Layer 3 switches?

  • Both provide a high level of security to the network.
  • Both use logical addressing to forward transmissions.
  • Both forward packets onto the network.
  • Both allow the implementation of VLANs.

Explanation:

A single layer-2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them via one or more routers; such a domain is referred to as a virtual local area network, virtual LAN or VLAN.
LANs are layer 2 constructs, so they can be supported by both Layer 2 and Layer 3 switches.

Incorrect:
Not A: Layer 2 switches do not provide high level of security.
Not B: Another name for logical address is IP address. Only Layer 3 switches uses IP address. Layer 2 switches uses MAC addresses.
Not C: only Layer 3 switches forward packets on the network (like routers).

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