The DDS (Doctor of Dental Surgery) and DMD (Doctor of Dental Medicine) are the same degrees. At least one of these degrees is required to become a general dentist. The majority of dental schools award the DDS degree, but some award a DMD degree. The level of education and the degrees are the same.
An intranet is a network based on TCP/IP protocols (an internet) belonging to an organization, usually a corporation, accessible only by the organization's members, employees, or others with authorization.
An Intranet is by definition any local area network that communicates with the same protocols as the Internet. Though the term Intranet is usually reserved for larger local area networks that are connected to some form of centralized storage.