What are two actions performed by a Cisco switch? (Choose two.)

IT Questions Bank › Category: CCNA › What are two actions performed by a Cisco switch? (Choose two.)

Question:
What are two actions performed by a Cisco switch? (Choose two.)

building a routing table that is based on the first IP address in the frame header
using the source MAC addresses of frames to build and maintain a MAC address table
forwarding frames with unknown destination IP addresses to the default gateway
utilizing the MAC address table to forward frames via the destination MAC address
examining the destination MAC address to add new entries to the MAC address table

Explanation: Important actions that a switch performs are as follows:

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. When the destination address is in the MAC address table, then the frame is sent out a particular port. When the address is unknown, the frame is sent to all ports that have devices connected to that network.