The Ultimate Guide To Google Maps Interview Questions (2023)
Google Maps Interview Questions
- Q: What is Google Maps?
- Q: Does Google Maps have an API?
- Q: What is Google Maps Api?
- Q: Is Google Maps API free?
- Q: How to load the Google Map on a web page?
- Q: What is GIS?
- Q: What are the GIS types?
- Q: What are examples of GIS?
- Q: What are the six components of GIS?
- Q: What is GPS and how does it work?
- Q: What is the difference between GIS and GPS?
- Q: What is difference between google maps and earth?
Q: What is Google Maps?
Ans:
Google Maps is a web mapping service designed by Google.It provides geographic data, routes and other information to user.
Q: Does Google Maps have an API?
Ans:
Each product (Maps, Routes or Places) provide a set of APIs. You can choose multiple product and with it's Api's like Places: Places API, Places Library, Maps JavaScript API; Geocoding API; Geolocation API; Time Zone API;
and Elevation API."
Q: What is Google Maps Api?
Ans:
The Google Map API is a robust tool that can be used to create a custom map, searchable map, check-in functions, display live data synchronization with location, plan routes, and many more features.
Q: Is Google Maps API free?
Ans:
Google Maps APIs are available for a wide range of
use scenarios, including complimentary usage limits and consistent overage pricing for the
use of regular APIs, as well as annual business implementation contracts.
The following APIs do not have usage limits:
Q: How to load the Google Map on a web page?
Ans:
Following are the steps to load the Google Map on a web page.- First Create an HTML Page and load Google Maps API using script tag
- Create a container element to hold the Map. We use div tag
<html> <!-- 1) Load Google Maps API using javascript --> <head> <script src="https://maps.googleapis.com/maps/api/js"></script> </head> <body> <!-- 2) Create a container to load Google Map inside --> <div id="mapContainer" style = "width:900px; height:580px;"></div> ............. </body> </html> - Define Google Maps Options:
Following are the various options that Google Maps provide.- Centre
- Zoom
- Maptypeid
var mapOptions = { center:new google.maps.LatLng(17.240498, 82.287598), zoom:9, mapTypeId:google.maps.MapTypeId.ROADMAP }; - Create Map Object :
How we will Create Map Object by using the html div element container reference and passing Map options to as belowfunction loadMap() { // Define Map Options var mapOptions = { center:new google.maps.LatLng(17.240498, 82.287598), zoom:9, mapTypeId:google.maps.MapTypeId.ROADMAP }; // Create Map Object by using the container reference and passing Map options var map = new google.maps.Map(document.getElementById("mapContainer"), mapOptions); } - Load the Map :
Finally we will load Map either by loadMap() method as followgoogle.maps.event.addDomListener(window, 'load', loadMap); OR <body onload = "loadMap()">
Q: What is GIS?
Ans:
A geographic information system (GIS) is a framework designed to capture, store, manipulate, analyze, manage and display all types of geographic information. Geography is the key word for this application, this means that
some of the data is spatial.
Q: What are the GIS types?
Ans:
GIS have two categories:
- Vector : Spatially referenced data which is represented by vector.
- Raster: Raster forms (including imagery) and attribute tables which is represented in tabular format.
Q: What are examples of GIS?
Ans:
It is also possible to enter digital data into GIS. Computer data collected by satellites showing land use is the location of farms, cities, and forests is an example of such information. Remote sensing provides another tool
that can be integrated into a GIS.
Q: What are the six components of GIS?
Ans:
The six parts of a GIS are: hardware, software, data, methods, people, and network.
Previously, there were only five parts to a GIS.