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UCT Test #1 > Unit 7 > Flashcards

Unit 7 Flashcards

1
Q

The key asset for achieving information superiority defined as the transmission of Information over a communication medium using technological means?

A

Telecommunications

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2
Q

How is a wavelength is measured from two congruent points located?

A

peak to peak or

valley to valley of repetitive waves

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3
Q

The duration of time required for a wave to complete one cycle.

A

Period

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4
Q

The number of cycles that are repeated in a one second interval of time.

A

Frequency

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5
Q

A measures of a wave’s intensity and is measured from a wave’s center to its lowest or highest point.

A

Amplitude

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6
Q

____ signals are discrete and quantized, while _______ signals are of a continuous flowing nature.

A

Digital, Analog

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7
Q

The process of manipulating some characteristics of a sine wave (carrier wave) with values from an information/message signal

A

Modulation

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8
Q

A device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier to decode the transmitted information.

A

Modem

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9
Q

Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment.

A

Electromagnetic Interference (EMI)

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10
Q

Any disturbance caused by the electric or magnetic fields of one telecommunication signal in an adjacent circuit.

A

Crosstalk

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11
Q

Weakening of a signal as it is transmitted

A

Attenuation

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12
Q

When a wave encounters discontinuities in the transmission medium.

A

Scattering

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13
Q

Digital transmission and light pulses

A

Dispersion

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14
Q

Defined as any difference between the expected output signal and the actual output signal

A

Distortion

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15
Q

Brief Voltage or current spikes

A

Transients

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16
Q

Reflections of a portion of the signal wave caused by discontinuities or inconsistencies along the transmission path

A

Echoes

17
Q

Combining multiple analog signals or digital data streams into one contiguous signal over a commonly shared medium

A

Multiplexing

18
Q

The most common types of Multiplexing are

A

Frequency-Division Multiple (FDMA)
Time-Division Multiple Access (TDMA)
Code Division Multiple Access (CDMA)

19
Q

The difference between upper and lower frequencies in a continuous set of frequencies and is typically measured in hertz.

A

Bandwith

20
Q

The amount of data processed or transferred at in a given time period.

A

Throughput

21
Q

An independent federal regulatory agency responsible directly to Congress

A

Federal Communications Commission

22
Q

The President’s principal advisor on telecommunications and information policy issues, and in this role frequently works with other executive-branch agencies to develop and present the administration’s position and information policy

A

National Telecommunications and Information Administration (NTIA)

23
Q

An international organization organization established to standardize and regulate interational radio and telecommuniations

A

International Telecommuncations Union (ITU)

24
Q

Responsible for developing comprehensive and integrated spectrum planning and long-term strategies for DoD spectrum access.

A

The Defense Spectrum Office

25
Q

Who is responsible for all electromagnetic radiation emanating from the installation and from those outlying activities hosted by the installation

A

Installation Commander

26
Q

What is required because each organization operating an RF-emitting device must obtain a frequency assignment before using devices that intentionally emit RF energy

A

Unit Frequency manager

27
Q

Spectrum Supportability Risk Assesment are defined in

A

DoDI 4650.01

28
Q

Radio Frequency Ranges

A

EHF, SHF, UHF, VHF

29
Q

30 to 300 GHz

A

Extremely High Frequency (EHF)

30
Q

3 to 30 GHz

A

Super High Frequency (SHF)

31
Q

300 MHz o 3 GHz

A

Ultra High Frequency (UHF)

32
Q

30 MHz to 300 MHz

A

Very High Frequency (VHF)

33
Q

What are the three types of satellite communications:

A

Ultra high frequency
Super High Frequency
Extremely High Frequency

UCT Test #1 (11 decks)

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