Electromagnetic Spectrum Frequency Ranges Quiz

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What distinguishes an analog wave from a digital wave?

Analog waves have fixed amplitude and frequency, while digital waves have continuously varying characteristics.

Analog waves can only be used for voice transmission, while digital waves are versatile for all types of data.

Analog waves have continuously varying amplitude and time, while digital waves have discrete states. (correct)

Analog waves are unidirectional, while digital waves can flow bidirectionally.

Which statement accurately describes a digital wave?

Digital waves have fixed amplitude but variable pulse width and frequency. (correct)

Digital waves have continuously varying amplitude and frequency.

Digital waves can only transmit human voice and music.

Digital waves are always unidirectional in nature.

In the context of networking media, what is the defining characteristic of wired or bounded media?

They are not limited by physical geography.

They transmit data without the use of any cables.

They leverage electrical or electromagnetic signals for data transmission.

They use cables as the physical path for transmitting data. (correct)

What type of media is not bounded by physical geography in transmitting data?

Wireless media Signup and view all the answers

In networking, what is the most significant advantage of wireless media over wired media?

No physical restrictions on data transmission Signup and view all the answers

Which factor determines the frequency of a wave?

Rate of oscillation Signup and view all the answers

What term is used to refer to the horizontal distance of a wave?

Wavelength Signup and view all the answers

In analog waves, what is measured in volts, amperes, or watts?

Amplitude Signup and view all the answers

What does frequency refer to in the context of waves?

Number of waves made per second Signup and view all the answers

Which attribute of a wave describes the position of the waveform relative to time zero?

Phase Signup and view all the answers

What unit is used to measure frequency?

Hertz Signup and view all the answers

Which attribute of a wave is measured in meters in SI units?

Wavelength Signup and view all the answers

Which frequency range is commonly used for military systems and submarine communication?

Low Frequency (LF) - 30 KHz to 300 KHz Signup and view all the answers

Which frequency range is typically associated with commercial AM radio broadcasting?

Medium Frequency (MF) - 300 kHz to 3 MHz Signup and view all the answers

What is the main propagation characteristic of Sky-Wave (SW) propagation for frequencies in the Medium Frequency (MF) range?

Ionospheric propagation Signup and view all the answers

Which frequency range is commonly used for international broadcasting and long-distance aircraft communication?

High Frequency (HF) - 3 MHz to 30 MHz Signup and view all the answers

Which wireless medium technology refers to short-range communication using the frequency range of 0.3 THz to 300 THz?

Infrared Signup and view all the answers

What is the primary propagation characteristic of Extremely Low Frequency (ELF) waves in the frequency range of 30 Hz to 300 Hz?

Ground Wave propagation Signup and view all the answers