13. e. Metropolitan Area Network - is a large computer network that usually spans a city or a large campus. A MAN usually interconnects a number of local area networks (LANs) using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks and the Internet.
14. f. Global Access Network - is a telecommunication system that extends mobile voice, data and IP Multimedia Subsystem/Session Initiation Protocol (IMS/SIP) applications over IP networks. Unlicensed Mobile Access or UMA, is the commercial name used by mobile carriers for external IP access into their core networks.
16. 108.5 State the difference between IPv4 and IPv6. IPV4 HAS 32 BIT ADDRESSES IPV6 HAS 64 BIT ADDRESSES
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21. a. DODN GIG – the global information grid is a globally interconnected, end-to-end set of information capabilities for collecting, processing, storing, disseminating, and managing information on demand to warfighters, policy makers, and support personnel.
22. b. Defense Information System Network (DISN) is the United States Department of Defense's enterprise network for providing data, video and voice services. In September 1991, OSD directed DISA to implement the DISN
23. c. Navy/Marine Corps Intranet (NMCI) is a United States Department of the Navy outsourcing program, in which an outside contractor provides a vast majority of information technology services for the entire Department, including the United States Navy and Marine Corps. The major US-CONUS shore based Navy network.
24. d. ONE-NET is a Navy-wide initiative to install a common and secure IT infrastructure to OCONUS Navy locations. It is based on the Navy-Marine Corps Intranet (NMCI) architecture and is designed to be interoperable with IT-21, NMCI, and the Global Information Grid in the near future.
25. e. IT-21 Network – The IT-21 network is a system built to industry standards, using commercial off-the-shelf technology (or COTS), devoid of stovepipes, in a client-server environment. The goal of IT-21 is to link all U.S. forces and eventually our allies together in a network that enables voice, video and data transmissions from a single desktop PC, allowing warfighters to exchange information that is classified or unclassified, and tactical or non-tactical. The IT-21 network is a GAN, and is managed by 4 Fleet NOCs positioned around the world for 24/7 operations.
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