🧪 Android Studio MCQ Quiz Hub

1. Android is licensed under which open source licensing license?
Gnu's GPL
Apache/MIT
OSS
Sourceforge

2. Although most people's first thought when they think of Android is Google, Android is not actually owned by Google. Who owns the Android platform?
Oracle Technology
Dalvik
Open Handset Alliance
The above statement is and Android is owned by Google

3. As an Android programmer, what version of Android should you use as your minimum development target?
Versions 1.6 or 2.0
Versions 1.0 or 1.1
Versions 1.2 or 1.3
Versions 2.3 or 3.0

4. What was Google's main business motivation for supporting Android?
To level the playing field for mobile devices
To directly compete with the iPhone
To corner the mobile device application market for licensing purposes
To allow them to advertise more

5. From a phone manufacturer's point of view, what makes Android so great?
Aside from some specific drivers, it provides everything to make a phone work
It makes the hardware work better
It allows them to compete with Apple's iPhone
It allows users to create apps, generating revenue for the companies

6. What is a funny fact about the start of Android?
It was orginaly going to be called UFO
The first version of Android was released without an actual phone on the market
Androids main purpose was to unlock your car door when you left the keys inside of it.
Was going to be a closed source application to make more money for its company.

7. A device with Android installed is needed to develop apps for Android.
True
False
all of the above
All of the mentioned

8. Android tries hard to __________ low-level components, such as the software stack, with interfaces so that vendor-specific code can be managed easily.
confound
absract
modularize
compound

9. Google licensed some proprietary apps.
True
False
all of the above
All of the mentioned

10. What part of the Android platform is open source?
low-level Linux modules
all of these answers #The entire stack is an open source platform
native libraries
application frame work

11. When did Google purchase Android?
2007
2005
2008
2010

12. Android releases since 1.5 have been given nicknames derived how?
Adjective and strange animal
Food
Something that starts w/ 'A' -> Something that starts w/ 'B'...
American states

13. Android doesn't make any assumptions about a device's screen size, resolution, or chipset.:
True
False
all of the above
All of the mentioned

14. Why are the so few users left with versions 1.0 and 1.1?
The first phones were released with version 1.5
1.0 and 1.1 had security holes that forced carriers to recall phones using them
1.0 and 1.1 are just number designations for the version Apple's iPhone is running
Everyone with 1.0 and 1.1 were upgraded to 1.5 over the air automatically

15. Which Android version had the greatest share of the market as of January 2011?
1.1
1.5
2.3
3.45 kJ

16. Which piece of code used in Android is not open source?
Keypad driver
WiFi? driver
Audio driver
Power management

17. Android is built upon the Java Micro Edition (J2ME) version of Java.
True
False
all of the above
All of the mentioned

18. What operating system is used as the base of the Android stack?
Linux
Windows
Java
XML

19. What year was development on the Dalvik virtual machine started?
2003
2005
2007
2006

20. What is a key difference with the distribution of apps for Android based devices than other mobile device platform applications?
Applications are distributed by Apple App Store only
Applications are distributed by multiple vendors with different policies on applications.
Applications are distributed by multiple vendors with the exact same policies on applications.
Applications are distributed by the Android Market only.

21. When developing for the Android OS, Java byte code is compiled into what?
Java source code
Dalvik application code
Dalvik byte code
C source code

22. What does the .apk extension stand for?
Application Package
Application Program Kit
Android Proprietary Kit
Android Package

23. When you distribute your application commercially,you'll want to sign it with your own key.
True
False
all of the above
All of the mentioned

24. How does Google check for malicious software in the Android Market?
Every new app is scanned by a virus scanner
Users report malicious software to Google
Google employees verify each new app
A seperate company monitors the Android Market for Google

25. Which of these are not one of the three main components of the APK?
Dalvik Executable
Resources
Native Libraries
Webkit

26. What was the main reason for replacing the Java VM with the Dalvik VM when the project began?
There was not enough memory capability
Java virtual machine was not free
Java VM was too complicated to configure
Java VM ran too slow

27. Android Applications must be signed.
After they are installed
Before they are installed
Never
Within two weeks of installation

28. Which of the following are not a component of an APK file?
Resources
All of these are components of the APK
Native Libraries
Dalvik executable

29. The AWT and Swing libraries have been removed from the Android library set.
True
False
all of the above
All of the mentioned

30. The R.java file is where you edit the resources for your project.
True
False
all of the above
All of the mentioned

31. What is contained within the manifest xml file?
The permissions the app requires
The list of strings used in the app
The source code
All other choices

32. What is contained within the Layout xml file?
Orientations and layouts that specify what the display looks like.
The permissions required by the app.
The strings used in the app.
The code which is compiled to run the app.

33. The emulated device for android.
Runs the same code base as the actual device, all the way down to the machine layer.
Is more of a simulator, and acts as a virtual machine for the Android device.
Runs the same code base as the actual device, however at a higher level.
An imaginary machine built on the hopes and dreams of baby elephants.

34. Your Java source code is what is directly run on the Android device.
True
False
all of the above
All of the mentioned

35. The Emulator is identical to running a real phone EXCEPT when emulating/simulating what?
Telephony
Applications
Sensors
The emulator can emulate/simulate all aspects of a smart phone.

36. How is a simulator different from an emulator?
Emulators are only used to play old SNES games, simulators are used for software development
The emulator is shipped with the Android SDK and third party simulators are not
The emulator can virtualize sensors and other hardware features, while the simulator cannot
The emulator imitates the machine executing the binary code, rather than simulating the behavior of the code at a higher level.

37. The R file is a(an) generated file
Automatically
Manually
Emulated
None of the above

38. To create an emulator, you need an AVD. What does it stand for?
Android Virtual Display
Android Virtual Device
Active Virtual Device
Application Virtual Display

39. The ________ file specifies the layout of your screen.
Layout file
Manifest file
Strings XML
R file

40. The manifest explains what the application consists of and glues everything together.
True
False
all of the above
All of the mentioned

41. What is the driving force behind an Android application and that ultimately gets converted into a Dalvik executable?
Java source code.
R-file.
the emulator.
the SDK

42. While developing Android applications, developers can test their apps on.
Emulator included in Android SDK
Physical Android phone
Third-party Emulators (Youwave, etc.)
All three options will work.

43. What file is responsible for glueing everthing together , explaining what the applicatin consists of, what its main building blocks are, ext...?
Layout file
Strings XML
R file
Manifest file

44. Which of the following is the most "resource hungry" part of dealing with Activities on Android.
Closing an app
Suspending an app
Opening a new app
Restoring the most recent app

45. What runs in the background and doesn't have any UI components?
Intents
Content Providers
Services
Applications

46. What is an Activity?
A single screen the user sees on the device at one time
A message sent among the major building blocks
A component that runs in the background without any interface.
Context referring to the application environment.

47. When an activity doesn't exist in memory it is in.
Starting state
Running state
Loading state
Inexistent state.

48. Which of the following is NOT a state in the lifecycle of a service?
Starting
Running
Destroyed
Paused

49. There is no guarantee that an activity will be stopped prior to being destroyed.
True
False
all of the above
All of the mentioned

50. Intents
are messages that are sent among major building blocks
trigger activities to being, services to start or stop, or broadcast
are asynchronous
all of these

51. In an explicit intent, the sender specifies the type of receiver.
True
False
all of the above
All of the mentioned

52. When the activity is not in focus, but still visible on the screen it is in?
running state
Paused state
stopped state
destroyed state

53. An activity in a stopped state is doing nothing.
True
False
all of the above
All of the mentioned

54. Services have any user interface components
True
False
all of the above
All of the mentioned

55. Broadcast receivers are Android’s implementation of a system-wide publish/subscribe mechanism, or more precisely, what design pattern?
Observer
Facade
Mediator
command directive

56. There can be only one running activity at a given time.
True
False
all of the above
All of the mentioned

57. YAMBA stands for Yet Another Mobile Banking App.
True
False
all of the above
All of the mentioned

58. Lists and adapters are more organizational aids than user interface elements in Android.
True
False
all of the above
All of the mentioned

59. What built-in database is Android shipped with?
SQLite
Apache
MySQL
Oracle trace file

60. Creating a UI (User Interface) in Android requires careful use of...
Java and SQL
XML and Java
XML and C++
Dreamweaver