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.
1 SharePoint E-Zine Volume 10: Quantifying the Success of Your SharePoint  ... An extranet is a private network that uses Internet technology and the public telecommunication system to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses. An extranet can be viewed as part of a company's intranet that is extended to users outside the company. It has also been described as a state of mind in which the Internet is perceived as a way to do business with other companies as well as to sell products to customers. Download this free guide.