Heat Map — Learn free · DataAI Nexus

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Questions 1–10 of 10

1. What is a Heat Map?
Question 1A. A table listing temperatures by cityB. A graphical representation of objects at any specific locationC. A chart of CPU usage over timeD. A list of latitude values onlyE. A database index for geographic data
2. During the Covid-19 era, what were Heat Maps used to identify?
Question 2A. Highly populated areasB. Hospital staffing levelsC. Vaccine storage temperaturesD. Internet bandwidthE. Stock market trends
3. How does Heat Map software know where a location is?
Question 3A. Users type in their postal address on every pageB. It guesses from the language of the web pageC. It reads the device's serial numberD. Latitude and longitude values picked up when a web page or app is opened are sent to databases, from which the software reads themE. It uses the time zone setting of the computer
4. What does Latitude measure?
Question 4A. Distance east or west of the prime meridianB. Height above sea levelC. Distance north or south of the EquatorD. The time difference from GreenwichE. The curvature of the Earth
5. How many imaginary lines are used to measure Latitude?
Question 5A. 90B. 360C. 24D. 12E. 180
6. What does Longitude measure?
Question 6A. Distance north or south of the EquatorB. Distance east or west of the prime meridianC. Depth below sea levelD. The distance between two citiesE. The speed of a moving object
7. What are the imaginary vertical lines that measure Longitude and meet at the North and South Poles called?
Question 7A. MeridiansB. ParallelsC. TropicsD. EquatorsE. Hemispheres
8. How many degrees does the distance around the Earth measure?
Question 8A. 90 degreesB. 180 degreesC. 720 degreesD. 360 degreesE. 100 degrees
9. With the introduction of Big Data and Data Lakes, which in-demand use case involving location is mentioned?
Question 9A. Compressing map imagesB. Printing paper mapsC. Analysing video and audio streams to identify unusual activities with location detailsD. Storing postal codes in a spreadsheetE. Calculating tax by region
10. In the Uber example, how do drivers use the Heat Map feature?
Question 10A. To rate passengers after each tripB. To calculate fuel consumptionC. To book their own holidaysD. To pay road tolls automaticallyE. To see where most taxis already are and where there are none, the latter being peak-hour areas where rates become high