This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Chapter 6 Discussion Questions 1. Define the following terms as they relate to a computer network: network interface card, network operating system. Network interface card – Each computer on the network contains a network interface called a network interface card. Most personal computers today have this card built into their motherboard. Network operating system – Routes and manages communications on the network and coordinates network resources. It can reside on every computer in the network, or it can reside primarily on a dedicated server computer for all the applications on the network. 2. Discuss how packet switching technology makes much more efficient use of the communications capacity of a network. Packet switching is a method of slicing digital messaged into parcels called packets, sending the packets along different communication paths as they become available, and then reassembling the packets once they arrive at their destination. Prior to the development of packet switching, computer networks used leased, dedicated telephone circuits to communicate with other computer in remote locations. Packet switching makes much more efficient use of the communications capacity of a network, because in packet-switched networks, messages are first broken down into small fixed bundles of data called packets. The packets include information for directing the packet to the right address and for checking transmission errors along with the data. The packers are then transmitted over various communication channels using routers, each packet traveling independently. Packets of data originating at one source will be routed through many different paths and networks before being reassembled into the original message when they reach their destination. 3. What is a protocol? What is TCP/IP? Protocol – a set of rules and procedures governing transmission of information between two points in a network. TCP/IP – In the past, many diverse proprietary and incompatible protocols often forced business firms to purchase computing and communication equipment from a single vendor, but today corporate networks are increasingly using a single, common, worldwide standard called Transmission Control Protocol/Internet Protocol. This was developed during the early 1970’s to support U.S. Department of Defense Advanced Research Project Agency (DARPA) efforts to help scientists transmit data among different types of computers over long distances. TCP/IP uses a suite of protocols, the main ones being TCP and IP. TCP refers to the Transmission Control Protocol (TCP), which handles the movement of data between computers. TCP establishes a connection between the computers, sequences the transfer of packers, and acknowledges the packets sent. IP refers to the Internet Protocol (IP) which is responsible for the delivery of packers and includes the disassembling and reassembling of packets during transmission. transmission....
View Full Document
This note was uploaded on 11/24/2010 for the course MGT MIS taught by Professor Nicholson during the Spring '10 term at Rowan.
- Spring '10