精选优质文档-倾情为你奉上1.1In the following options, which does not define in protocol? (D)Athe format of messages exchanged between two or more communicating entitiesBthe order of messages exchanged between two or more communicating entitiesCthe actions taken on the transmission of a message or other eventDthe transmission signals are digital signals or analog signals1.2In the following options, which is defined in protocol? (A)Athe actions taken on the t