Exam 24: B: Extension: A Networks and Telecommunications

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A router is 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 is a protocol?

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Wireless media are transmission materials manufactured so that signals will be confined to a narrow path and will behave predictably.

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What is a computer that is designed to request information from a server?

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Simple mail transfer protocol (SMTP) is TCP/IP's own messaging system for email.

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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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What is designed to connect a group of computers in close proximity to each other such as in an office building, a school, or a home?

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A WAN is a physical and data layer technology for LAN networking.

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The transport layer formats the data into packets, adds a header containing the packet sequence and the address of the receiving device, and specifies the services required from the network.

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Which of the following is not a network topology?

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A WAN is a card that plugs into the back (or side) of your computers and lets them send and receive messages from other computers.

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What allows web browsers and servers to send and receive web pages?

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FTP provides terminal emulation that allows a personal computer or workstation to act as a terminal, or access device, for a server.

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A hub is a computer designed to request information from a server.A server is a computer dedicated to providing information in response to requests.

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What is TCP/IP's own messaging system for email?

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How many layers does the OSI model contain?

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What is a client?

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Protocols includes bus, star, ring, hybrid, and wireless.

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List and describe the four components that differentiate networks.

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What is a router?

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