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.
Telnet is a user command and an underlying TCP/IP protocol for accessing remote computers. Through Telnet, an administrator or another user can access someone else's computer remotely. On the Web, HTTP and FTP protocols allow you to request specific files from remote computers, but not to actually be logged on as a user of that computer.