問題文
An UPDATE that a UAC sent within an established dialog draws a 481 in reply. What does the standard have that UAC do about the dialog and about the session parameters that were in force?
選択肢
- It ends the dialog and adopts the parameters that it had proposed, since a rejection lands too late to undo a description already taken up.
- It ends the dialog and leaves the parameters as they stood, since a rebuff of this particular sort strips away the dialog underneath it.
- It keeps the dialog and adopts the parameters that it had proposed, since a turndown of this kind reports upon the moment instead of upon the payload.
- It keeps the dialog and leaves the parameters as they stood, since a failure speaks to the body that was carried rather than to the footing.