Exam 6: Data Communication: Delivering Information Anywhere and Anytime

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Ethernet is a standard communication protocol embedded in software and hardware devices used for building a local area network (LAN).

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Describe the ring topology.

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In a ring topology,no host computer is required because each computer manages its own connectivity.Computers and devices are arranged in a circle so each node is connected to two other nodes: its upstream neighbor and its downstream neighbor.Transmission is in one direction,and nodes repeat a signal before passing it to the downstream neighbor.If any link between nodes is severed,the entire network is affected,and failure of a single node disrupts the entire network.A token ring is a common implementation of the ring topology.Modern ring topologies,such as Fiber Distributed Data Interface (FDDI),are capable of bidirectional transmission (clockwise and counterclockwise),which prevents the problems caused by a single node failure.

In the context of communication media,what is the difference between a point-to-point and a multipoint system?

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In a point-to-point system,only one device at a time uses the medium.In a multipoint system,several devices share the same medium,and a transmission from one device can be sent to all other devices sharing the link.

A _________ is a collection of binary digits,including message data and control characters for formatting and transmitting,sent from computer to computer over a network.

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A(n)_____ is a device that connects a user to the Internet.

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Why is an efficient data communication system critical to an information system?

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Which of the following events takes place in the most basic client / server configuration?

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Identify the layer of the Open Systems Interconnection (OSI)model in which the Internet Protocol (IP)operates.

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A network _____ represents a network's physical layout.

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A _________ works well for companies that are geographically dispersed.

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An access point (AP)is the part of a wireless local area network (WLAN)that connects it to other networks.

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A communication network shortens product and service development life cycles and delivers information to those who need it faster and more efficiently.

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List the three main components of a typical data communication system.

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Computers in a local area network (LAN)are usually connected to the network via a(n)_____,which is a hardware component.

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Both Wireless LANs (WLANs)and Wireless WANs (WWANs)rely on the _________ as the communication medium.

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_____ are conducted media,which can be used for both data and voice transmissions.

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Which of the following media is based on line of sight?

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Identify a true statement about distributed processing.

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The data transfer speed of a wide area network (WAN)depends on the _____.

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Identify a layer of the Open Systems Interconnection (OSI)model that provides methods for controlling data flow,ordering received data,and acknowledging received data.

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