What are two functions of a Layer 2 switch? (Choose two)

The correct answer is C. moves packets within a VLAN E. makes forwarding decisions based on the MAC address of a packet. A layer 2 switch is primarily responsible for transporting data on a physical layer and in performing error checking on each transmitted and received frame. A layer 2 switch requires MAC address of NIC on each network node to transmit data. They learn MAC addresses automatically

Submitted by paula_co· Mar 5, 2026Network Access

Question

What are two functions of a Layer 2 switch? (Choose two)

Options

Aacts as a central point for association and authentication servers
Bselects the best route between networks on a WAN
Cmoves packets within a VLAN
Dmoves packets between different VLANs
Emakes forwarding decisions based on the MAC address of a packet

How the community answered

(21 responses)

A
5% (1)
C
90% (19)
D
5% (1)

Explanation

A layer 2 switch is primarily responsible for transporting data on a physical layer and in performing error checking on each transmitted and received frame. A layer 2 switch requires MAC address of NIC on each network node to transmit data. They learn MAC addresses automatically by copying MAC address of each frame received, or listening to devices on the network and maintaining their MAC address in a forwarding table. This also enables a layer 2 switch to send frames quickly to destination nodes. However, like other layer switches (3,4 onwards), a layer 2 switch cannot transmit packet on IP addresses and don’t have any mechanism to prioritize packets based on sending/receiving application.

Topics

#Layer 2 switching#MAC address forwarding#VLANs

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