Appendix B: Networks & Telecommunications – Flashcards
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What is designed to connect to a group of computers in close proximity to each other, such as in an office building, a school, or home?
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Local area network (LAN)
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What is a router?
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Refers to an intelligent connecting device that examines each packet of data it receives and then decides which way to send it onward toward its destination.
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What runs a network, steering information between computers and managing security and users?
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Network operating system
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Which of the following is not a commonly used type of guided media?
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Transmission control protocol/internet protocol
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What allows web browsers and servers to send and receive web pages?
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Hypertext transfer protocol (HTTP)
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What is a client?
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A computer that is designed to request information from a server
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What occurs when the sending computer divides a message into a number of efficiently sized units called packets, each of which contains the address of the destination computer?
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Packet-switching
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What is a network?
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A communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, so that they can work together
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What is a client/server network?
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Refers to a model application in which the bulk of the back-end processing, such as performing a physical search of a database, takes place on a server, while the front-end processing, which involves communicating with the users, is handled by the clients
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What refers to a type of cable composed of four (or more) copper wire twisted around each other within a plastic sheath?
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Twisted-pair cable
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What allows files containing text, programs, graphics, numerical data, and so on to be downloaded off or uploaded onto a network?
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File transfer protocol (FTP)
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What spans a large geographic area, such as a state, province, or country?
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Wide area network
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What is TCP/IP's own messaging system for email?
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Simple mail transfer protocol (SMTP)
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What is a protocol?
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A standard that specifies the format of dates well as the rules to be followed during transmission
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What allows the management of networked nodes to be managed from a single point?
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Simple network management protocol (SNMP)
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What is interoperability?
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The capability of two or more computer systems to share data and resources, even though they are made by different manufacturers
