Chat with AIExam 1: Introduction to Computer Networks and Data Communications
A(n) ____ connection is a nonphysical connection between sender and receiver that allows an exchange of commands and responses.
(32) 
VerifiedD
Explain what is meant by personal area network-to-workstation connections.
(29) VerifiedThe personal area network was created in the late 1990s and is one of the newer forms of computer networks. Using wireless transmissions with devices such as personal digital assistants (PDAs), laptop computers, and portable music players, an individual can transfer voice, data, and music from handheld devices to other devices such as microcomputer workstations. Likewise, a user can download data from a workstation to one of these portable devices. For example, a user may use a PDA to record notes during a meeting. Once the meeting is over, the user can transmit the notes over a wireless connection from the PDA to his or her workstation. The workstation then runs a word processor to clean up the notes, and the formatted notes are uploaded to a local area network for corporate dissemination.
The ____________________ layer of the OSI model is responsible for taking data from the network layer and transforming it into a cohesive unit called a frame.
(36) Verifieddata link
The top layer in the OSI model is the ____________________ layer, where the application using the network resides.
(37) ____ are more advanced devices that are replacing hubs and are capable of filtering out unnecessary traffic.
(33) A ____ is an interconnection of computers and computing equipment using either wires or radio waves over small or large geographic areas.
(39) ____ are the computers that store network software and shared or private user files.
(33) By the 1970s, telephone systems carried more computer data than voice.
(42) The merging together of two or more businesses or technologies is termed
(43) The bottom layer in the OSI model-the ____ layer-handles the transmission of bits over a communications channel.
(38) A(n) ____________________, or communications model, places the appropriate network pieces in layers.
(37) A type of microcomputer-to-local area network connection that is growing in popularity is the wireless connection.
(31) ____________________ are sets of rules used by communication devices.
(40) ___________________________________ is used to allow Web browsers and servers to send and receive World Wide Web pages.
(42) The TCP/IP ____ layer, sometimes called the Internet layer, is roughly equivalent to OSI's network layer.
(37) A ____ is a device that is essentially a keyboard and screen with no long-term storage capabilities and little, if any, processing power.
(28) ____ ensures that the network does not become saturated at any one point.
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