Which is true about a layer 3 broadcast?

A. All of the network bits are ones.
B. The destination MAC in the frame is always all Fs.
C. The broadcast can be segmented by switches.
D. The IP address is always 255.255.255.255.

B. A layer 3 broadcast is always all ones in the host portion of the IP address. When the IP stack see this, it puts all Fs in the destination Ethernet MAC address.