Chapter 12 Homework - CIS 3003 Chapter 12 Homework 1....

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CIS 3003 – Chapter 12 Homework 1. Industry convention describes a WAN as a network that spans a large geographical distance. 2. The largest example of a WAN is the public Internet, but many other types of WANs exist. 3. Wide area networking is sometimes referred to as enterprise networking, 4. IBM’s Systems Network Architecture (SNA) and Digital Equipment Corporation’s DECnet networking architectures provided a set of protocols and used computers and other networked devices manufactured by a single vendor in the 1970s. 5. During the 1970s, there was NO complete interoperability between computing devices made by different manufacturers. 6. Packet switching is an important general concept of computer networking and is the sole switching approach used by the most popular WAN: the Internet. 7. A packet contains the actual information content to be transmitted, such as an electronic mail message, as well as supplementary overhead information, such as the order of the packet, the sender’s binary address and the binary address of the packet’s destination. 8. In one type of networking approach, known as connectionless packet switching, NO dedicated end-to-end physical connection is established for the duration of data transmission. 9. One goal of routers is to minimize hops, the number of times a packet traverses various routers as it is transmitted over a network. 10. The packet-switching approach uses resources more efficiently than the circuit-switching approach because no single user can exclusively occupy a given path. 11. In the United States, the development of the packet-switching approach was influenced by concerns about survivable communication networks during the Cold War. 12. Packet switching was independently developed by Paul Baran at RAND Corporation in the United States and by Donald Davies at the National Physical Laboratory in the United Kingdom. 13. Protocols are the rules that enable information exchange over a network, including how many bits make up a binary network address, how to place information in standard formats that anyone can read, and rules for performing error checking over the network.
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This note was uploaded on 10/05/2010 for the course CIS CIS 3003 taught by Professor K during the Spring '10 term at University of Central Florida.

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Chapter 12 Homework - CIS 3003 Chapter 12 Homework 1....

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