NAVEDTRA 14224, Ch. 3 Flashcards
What are the majority of all network-related problems caused by?
Operator error
How many primary culprits to network malfunctions are there?
3
How many categories are component failures categorized into?
2
What are the simple set of system checks called that are stored in ROM that are run when the computer is turned on?
Power on Self Test (POST)
Which device can be used to monitor the activity of a network and the stations on it and provides daily summaries or long-term trends of network usage and performance?
Network analyzer
What is the simultaneous presence of signals from two nodes on the network referred to as?
Data collision
What is the hardware signal that is sent from a potential transmitter to a destination to indicate that the transmitter wishes to begin a transmission?
Request To Send (RTS)
What is the hardware signal that is sent from a receiver to a transmitter to indicate that the transmitter can begin sending?
Clear To Send (CTS)
Which term is used to describe the random electrical signals that become part of a transmission, that serve to make the signal component of the transmission more difficult to identify?
Noise
How is the Signal-to-Noise Ratio (SNR) usually expressed?
dB
What can be used to determine how long a cable segment can be before the signal loss is unacceptably high?
Signal-to-Noise Ratio
What is defined as the decrease in signal strength, measured in decibels (dB) per 100 feet?
Attenuation
What is defined as interference in the form of a signal from a neighboring cable or circuit?
Crosstalk
What is used to try to eliminate the effects of certain types of distortions on the signal?
Line conditioning
Which device is used to test the integrity of a section of cable before the cable is even unwound?
Time Domain Reflectometry (TDR)
