Copper Core Cable Pretest

Network _____ is a general term for the various ways to transmit data.

• encapsulation

• media

• amplitude

• frequency

From what does all network communication originate?

• radio waves

• coaxial and twisted-pair cabling

• electronic signals

• crosstalk

What is the difference between analog and digital signals?

• Analog signals have continuous ranges of values; digital signals have discrete values of on or of.

• Analog signals are generated by nodes; digital signals are generated by hosts.

• Analog signals travel via cabling; digital signals travel on radio waves.

• Analog signals are not susceptible to interference; digital signals are not susceptible to crosstalk.

Which of the following is true regarding analog signals?

• Analog signals are represented by one voltage being a 1 and another voltage being a 0.

• Analog signals are similar to the signals generated by pressing the power button on a computer

• Analog signals must contain digital information.

• Analog signals will not work on Wi-Fi.

What is attenuation?

• Any undesired electromagnetic signal

• Electromagnetic interference

• Interference caused by a neighboring conductor

• Loss of signal strength

_____ is the amount of time it takes a signal to travel from its source to its destination

• Crosstalkk

• Latency

• Filtering

• Noise

What is bandwidth?

• A measurement of the network media’s ability to carry an electronic signal

• The maximum number of hops allowed

• Bidirectional communication

• A measurement of the network media’s ability to carry data

_____ is to digital as _____ is to analog.

• Baseband, broadband

• Simplex, full-duplex

• Broadband, baseband

• Half-duplex, simplex

Most modern communication is done with _____ communication.

• simplex

• half-duplex

• duplex

• full-duplex

What is the opposition to direct current called?

• Alternating current

• Resistance

• Impedance

• Reflected loss