Interview Questions and Answers - Android


 Basics :1


1# : What is Android?


        Android is a mobile operating system (OS) based on the Linux kernel and currently developed by  Google. With a user interface based on direct manipulation, Android is designed primarily for touchscreen mobile devices such as smartphones, tablet computers,and  televisions (Android TV), cars (Android Auto), and wrist watches (Android Wear).





2# : Code names of android Version?

        



Note :-  "Android 5.0 "Lollipop" is the latest version of the Android mobile operating system developed by Google. Unveiled on June 25, 2014 during Google I/O, it became available through official over-the-air (OTA) updates on November 12, 2014, for select devices that run distributions of Android serviced by Google (such as Nexus and Google Play edition devices). Its source code was made available on November 3, 2014."

 3# : Android-Development-Services ?





 4# : Android Core Building Block ?



      Android main components : -                
  •  Activity 
  • View 
  • Intent 
  • Broadcast Receiver
  • Content Provider
  • Services
  • Fragments 
  • AndroidManifest.xml
  • Android Virtual Device (AVD) etc ..   



5# : Advantages of android?
  • Open source: No licence, Distribution and Development fee.
  • Platform independent: Supports windows, mac and linux platforms.
  • Supports various technologies: Supports camera, bluetooth, wifi, speech, EDGE etc ...
  • Highly Optimized Virtual Machine: Highly optimized virtual machine for mobile devices, called DVM (Dalvik Virtual Machine).
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