If the server receives an ambiguous request, it sends a list of the
different alternatives it has. The user agent can make the choice if it
has sufficient knowledge of the user's preferences. Otherwise, it displays
the list of links for the user to make the final choice.
Advantages |
Disadvantages |
- The cache is used to reduce network overhead.
-
The client gains more privacy because no description is sent to
the server.
|
-
The increase of latency due to the round trip to select the representation.
|