Exam 1: Lan/Wan Networking: an Overview

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OSI stands for ____.

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IBM's Personal Computer (PC)hit the market in the 1970s.

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Often a LAN ends when there is a change in the communications medium.

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A(n)frame does not include routing information.

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The M in MAN stands for multiple .

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____ developed the UNIX operating system.

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____ can determine the shortest path between two computers separated by LANs or by WANs.

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Bridges can be used to segment LANs into smaller subnetworks to improve performance by isolating network traffic, isolating network problems, and controlling access to each network.

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The design layout of a network is called the network ____________________.

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Match each correct item with the statement below.
A network transport method that uses carrier sending and packet collision detection to coordinate network traffic flow.
WAN
A layered communications protocol used by IBM for communications between IBM mainframe computers and terminals.
enterprise
The key characteristic in this is the existence of different resources that enable users to fulfill business, research, and educational tasks.
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A network transport method that uses carrier sending and packet collision detection to coordinate network traffic flow.
WAN
A layered communications protocol used by IBM for communications between IBM mainframe computers and terminals.
enterprise
The key characteristic in this is the existence of different resources that enable users to fulfill business, research, and educational tasks.
SNA
The extensive research network that preceded the Internet.
fiber optics
The high-speed links between networks in this are typically made possible by fiber-optic connections.
MAN
A private network that functions like a tunnel through a larger network that is restricted to designated member clients only.
Ethernet
A far-reaching system of networks that form a complex whole.
LAN
An example of this is a university chemistry department in which the computers in each office and lab are connected by communications cable.
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Encoding involves converting a frame or packet from one format to another, as in formatting all frames or packets to the same size requirements regardless of the protocol.

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____ created the first mass-produced minicomputer.

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The network protocol does not specify ____.

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IP stands for ______________________________.

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____ are employed least frequently.

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A number of connected LANs in a city form a ____.

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Which network properties enable you to distinguish one type of network from another?

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The Soviets launched the first communications satellite, called Echo.

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In a network the logical path of the data must match the physical layout.

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A(n)____________________ is a unit of data that is formatted for transmission as a signal over a network.

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