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Network troubleshooting devices that can test for cable defects, monitor network collisions, and monitor network congestion.
Cable testers
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A network troubleshooting tool that measures voltage, amperage, and resistance on a cable or other conductive element.
Digital voltmeter (DVM)
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A web document with two parts to each entry. The first part is a question the manufacturer has anticipated or received from customers; the second part is an answer to that question.
Frequently Asked Questions (FAQ)
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A set of objects containing information about a networking device that SNMP uses to manage that device.
Management information base (MIB)
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Software that monitors network traffic and gathers information about packet types, errors, and packet traffic to and from each computer.
Network monitors
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Network trouble shooting devices that measure the signal voltage per amount of time. When used with a TDR, they can help define cable problems.
Oscilloscopes
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A method of forestalling network problems by planning in advance and performing regular network maintenance.
Preemptive troubleshooting
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Specialized software that gathers network data and provides statistics to a network management console.
Remote Monitoring (RMON)
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Part of an upgrade plan that provides instructions on how to undo the upgrade if problems happen during the upgrade.
Rollback plan
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A condition that occurs when conductors that are normally insulated from one another establish a connection. In a coaxial cable, if the shield and the internal conductor become connected, the cable stops functioning because the ______ blocks all network traffic; the same condition can occur in twisted-pair cable if two or more of the paired wires become connected.
Short circuit
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Part of the SNMP structure loaded on to each device to be monitored.
Software agents
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A network troubleshooting device that can determine whether there's a break or short in the cable and, if so, approximately how far down the cable it's located.
Time-domain reflectometer (TDR)
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The process of detecting problems, identifying causes or contributing factors, and applying necessary workarounds or repairs to eliminate their effects.
troubleshooting
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