Wireless Spectrum Quiz

Froggy Jumps

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Telecom wavelengths in action

Ella Mae Mangana

Philippines

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Wireless Spectrum Quiz


Froggy Jumps Wireless Spectrum QuizVersion en ligne Telecom wavelengths in action par Ella Mae Mangana 1 What is a primary use of radio waves in telecoms? a Underwater cables b Fiber optic signaling c Wireless long-distance data transmission 2 Which property makes microwaves suitable for point-to-point links? a Inability to carry high data rates b Line-of-sight propagation with focused beams c Heavy attenuation in free space 3 What is a key limitation of infrared in telecoms? a Very low data rates b Penetrates clouds easily c Limited to short-range line-of-sight paths 4 Which band is commonly used for home Wi-Fi communications? a Ultra-high frequency (UHF) b Infrared range c Microwave range (2.4 GHz and 5 GHz) 5 Which characteristic helps radio waves penetrate obstacles better than infrared? a Higher energy photons b Lower frequency and diffraction around objects c Single-path propagation 6 What is the main advantage of microwaves in satellite links? a High data rates over long distances b Unlimited bandwidth c Low energy consumption 7 Infrared is primarily used in which telecom scenario? a Near-field, short-range remote controls and LOS links b Global satellite networks c Submarine communications 8 What enables radio waves to cover large areas with fewer towers? a Higher frequency stability and spectrum efficiency b Increased optical fiber reliance c Lower modulation schemes