Which MAC address is used for broadcast on a local network?

Prepare for the Cisco Certified Network Associate (CCNA) Exam with comprehensive quizzes, multiple choice questions, and detailed explanations. Gear up for success with a blend of structured study materials and expert tips!

Multiple Choice

Which MAC address is used for broadcast on a local network?

Explanation:
When a frame is meant for every device on the local Ethernet network, the destination MAC address uses all ones: FF-FF-FF-FF-FF-FF. This broadcast address ensures every NIC on the LAN processes the frame, which is how devices like ARP requests or DHCP discover messages reach all hosts. The other addresses shown have specific purposes but are not broadcast. A random unicast address targets a single device. A MAC address starting with 01-00-5E is used for IPv4 multicast, delivering to a group of devices subscribed to that multicast. An address like 00-00-00-00-00-01 isn’t a broadcast address and isn’t sent to every host. So, the broadcast MAC address is FF-FF-FF-FF-FF-FF.

When a frame is meant for every device on the local Ethernet network, the destination MAC address uses all ones: FF-FF-FF-FF-FF-FF. This broadcast address ensures every NIC on the LAN processes the frame, which is how devices like ARP requests or DHCP discover messages reach all hosts.

The other addresses shown have specific purposes but are not broadcast. A random unicast address targets a single device. A MAC address starting with 01-00-5E is used for IPv4 multicast, delivering to a group of devices subscribed to that multicast. An address like 00-00-00-00-00-01 isn’t a broadcast address and isn’t sent to every host.

So, the broadcast MAC address is FF-FF-FF-FF-FF-FF.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy