Chapter 13 Terms

Question 1

Jabber

Answer 1

A device that handles electrical signals improperly, usually affecting the rest of the network. This device is always retransmitting, effectively bringing the network to a halt.

Question 2

Voltmeter

Answer 2

A device used to measure voltage or electrical pressure on an electrical circuit.

Question 3

TDR

Answer 3

A high-end instrument for testing the qualities of a cable. It works by issuing a signal on a cable and measuring the way in which the signal bounces back to the device.

Question 4

OTDR

Answer 4

A performance testing device for use with fiber-optic networks. It works by issuing a light-based signal on a fiber-optic cable and measuring the way in which the signal bounces back.

Question 5

Baseline

Answer 5

A record of how a network operates under normal conditions, including its performance, collision rate, utilization rate, etc., to be used for comparison when conditions change.

Question 6

Multimeter

Answer 6

A simple instrument that can measure multiple characteristics of an electric circuit, including its resistance and voltage.

Question 7

Tone Generator

Answer 7

A small electronic device that issues a signal on a wire pair. When used in conjunction with a tone locator, it can help locate the termination of a wire pair.

Question 8

Butt Set

Answer 8

A tool for accessing and testing a telephone company’s local loop. This lineman’s handset is essentially a telephone handset with attached wires that can be connected to local loop terminations at a demarc or switching facility.

Question 9

Promiscuous Mode

Answer 9

The feature of a network adapter that allows it to pick up all frames that pass over the network–not just those destined for the node served by the card.