Question

question 10
which statement describes a characteristic of the frame header fields of the data link layer?
they include information on user applications.
they vary depending on protocols.
they all include the flow control and logical connection fields.
ethernet frame header fields contain layer 3 source and destination addresses.

Explanation:

The frame - header fields in the data - link layer vary depending on the protocol used. For example, Ethernet and PPP (Point - to - Point Protocol) have different frame - header structures. Information on user applications is at higher layers. Not all frame headers have flow - control and logical - connection fields. Ethernet frame headers have Layer 2 (MAC) addresses, not Layer 3 (IP) addresses.

Answer:

They vary depending on protocols.