DATA LINK LAYER WIRED NETWORKS
CONNECTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver.
Detailed explanation-2: -Surveyors, scientists, pilots, boat captains, first responders, and workers in mining and agriculture, are just some of the people who use GPS on a daily basis for work. They use GPS information for preparing accurate surveys and maps, taking precise time measurements, tracking position or location, and for navigation.
Detailed explanation-3: -Today, GPS is used to map forests, help farmers harvest their fields and airplane pilots navigate on the ground or in the air.
Detailed explanation-4: -It is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. It is a network of 24 satellites that provides service to civilian and military users. GPS receivers provide location in terms of latitude, longitude, and altitude. Hence, Statement 3 is correct.