Correct Answer : Is an operating system
Explanation : Android is a software package and linux based operating system for mobile devices such as tablet computers and smartphones.
Correct Answer : Google
Explanation : The first commercial version, Android 1.0, was released on September 23, 2008. Android is continually developed by Google and the Open Handset Alliance (OHA), and it has seen several updates to its base operating system since the initial release.
Correct Answer : September 23, 2008
Explanation : Android is a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in 23rd September 2008.
Correct Answer : Apache/MIT
Explanation : The Android platform was released under the Apache 2.0 license, and it is responsible for the copyright of the Android Open Source project. The Apache Foundation permits and grants licenses for software uses and distribution by the copyright under the Android Open Source Project.
Correct Answer : Open Handset Alliance
Explanation : Android was developed by the Open Handset Alliance, led by Google, and other companies.
Correct Answer : A single screen in an application with supporting java code
Correct Answer : Mobile devices
Explanation : Android is a software package and a Linux-based operating system specially designed for touch-screen mobile devices like smartphones and tablets.
Correct Answer : All of the above
Explanation : Jelly Bean is an incremental update, with the primary aim of improving the user interface, both in terms of functionality and performance.
Correct Answer : Java
Explanation : Android applications are usually developed in the Java language using the Android Software Development Kit.
Correct Answer : T - Mobile G1
Explanation : The first Android mobile was publicly released with Android 1.0 of the T-Mobile G1 (aka HTC Dream) in October 2008.
Explanation : All of the above are reasons for which Android is based on Linux.
Correct Answer : Dalvik virtual machine
Explanation : The Dalvik Virtual Machine (DVM) is an android virtual machine optimized for mobile devices. It optimizes the virtual machine for memory, battery life, and performance. Dalvik is a name of a town in Iceland. The Dalvik VM was written by Dan Bornstein.
Correct Answer : Android Package Kit
Explanation : An APK is a short form of the Android Package Kit. An APK file is the file format used to install the applications on the android operating system.
Correct Answer : Application Programming Interface
Explanation : API stands for application program interface. It is a set of routines, protocols, and tools for building software and applications. It may be any type of system like a web-based system, operating system, or database system.
Correct Answer : Dex compiler
Explanation : The Dex compiler converts the class files into a .dex file that runs on the Dalvik VM. Multiple class files are converted into one dex file.
Correct Answer : 21
Explanation : API level of Android 5.0 is 21 and VERSION_CODE is LOLLIPOP.
Correct Answer : MARSHMALLOW
Explanation : Version code of Android 6.0 is MARSHMALLOW.
Correct Answer : GCM
Explanation : Google Cloud Messaging (GCM) is a service that lets developers send short message data to their users on Android devices, without needing a proprietary sync solution.
Correct Answer : 39692
Explanation : Android 1.0, was released in September 2008.
Correct Answer : Slide Mobango
Explanation : Slide Mobango is not a Features of Android.
Correct Answer : By using the stopSelf() and stopService() method
Explanation : A service is started when a component (like activity) calls the startService() method; now, it runs in the background indefinitely. It is stopped by the stopService() method. The service can stop itself by calling the stopSelf() method.
Correct Answer : Both (a) and (b)
Explanation : The finish() method is used to close the activity. Whereas the finishActivity(int requestCode) also closes the activity with requestCode.
Correct Answer : Android debug bridge
Explanation : ADB stands for Android Debug Bridge. It is a command-line tool that is used to communicate with the emulator instance.
Explanation : We can use the Android emulator, physical android phone, or third-party emulator as a target device to execute and test our Android application.
Correct Answer : Linux
Explanation : Android is a customized Linux 3.6 kernel. It is the heart of android architecture that exists at the root of android architecture. Linux kernel is responsible for device drivers, power management, memory management, device management, and resource access.
Correct Answer : onCreate() method
Explanation : onCreate() method is called when activity is first created. The onCreate() and onDestroy() methods are called only once throughout the activity lifecycle.
Correct Answer : onBackPressed() method
Correct Answer : Android Virtual device
Explanation : An Android Virtual Device (AVD) is an emulator configuration that represents a specific Android device. We can use the Android emulator as a target device to execute and test our Android application on our PC.
Correct Answer : Yes
Explanation : Yes, an android app can be developed in C/C++ also using android NDK (Native Development Kit). It makes the performance faster. It should be used with Android SDK.
Correct Answer : For sending the data from an application to another application
Explanation : A content provider is used to share information between Android applications.
Correct Answer : 4
Explanation : Android operating system is a stack of software components which is roughly divided into five sections and four main layers.
Correct Answer : Linux kernel
Explanation : At the bottom of the layers is Linux - Linux 3.6 with approximately 115 patches
Correct Answer : Applications
Explanation : Android application at the top layer. You will write your application to be installed on this layer only.
Correct Answer : android.app
Explanation : android.app − Provides access to the application model and is the cornerstone of all Android applications
Correct Answer : A set of classes intended to allow web-browsing capabilities to be built into applications.
Explanation : android.webkit : A set of classes intended to allow web-browsing capabilities to be built into applications.
Correct Answer : Android Runtime
Explanation : Android Runtime is not a layer in Android Architecture.
Correct Answer : Provides access to non-code embedded resources such as strings, color settings and user interface layouts.
Explanation : Resource Manager : Provides access to non-code embedded resources such as strings, color settings and user interface layouts.
Correct Answer : android.opengl
Explanation : android.opengl : A Java interface to the OpenGL ES 3D graphics rendering API
Correct Answer : Controls all aspects of the application lifecycle and activity stack.
Explanation : Activity Manager :Controls all aspects of the application lifecycle and activity stack.
Explanation : This is the third section of the architecture and available on the second layer from the bottom. This section provides a key component called Dalvik Virtual Machine which is a kind of Java Virtual Machine specially designed and optimized for Android.
Correct Answer : Android Asset Packaging Tool
Explanation : AAPT is an acronym for "Android Asset Packaging Tool". It handles the packaging process.
Correct Answer : Native Development Kit
Explanation : NDK stands for Native Development Kit. By using NDK, you can develop a part of an app using a native language such as C/C++ to boost performance.
Correct Answer : Java source code
Correct Answer : onClick
Correct Answer : Fragment
Explanation : Android Fragment is the part of activity; it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screens inside one activity.
Correct Answer : contextThemeWrapper
Explanation : The android Activity is the subclass of ContextThemeWrapper class. Android Activity Lifecycle is controlled by 7 methods of android.app.Activity class. An activity is a single screen in android. It is like a window or frame of Java.
Correct Answer : contextWrapper
Explanation : The android.app.Service is subclass of ContextWrapper class. Android service is a component used to perform operations on the background, such as playing music, handling network transactions, interacting content providers, etc.
Explanation : OHA stands for "Open Handset Alliance". It's a consortium of 84 companies such as google, samsung, AKM, synaptics, KDDI, Garmin, Teleca, eBay, Intel, etc.
Correct Answer : Logcat
Explanation : Logcat is a command-line tool that dumps a log of system messages. It includes the messages that you have written from your app with the Log class and also includes the stack traces when the devices throw an error. Logcat helps to analyze the problems and also helps to display the log messages of our android device.
Correct Answer : 2007
Explanation : OHA (Open Handset Alliance) was established on 5th November 2007, led by Google. It is committed to advance open standards, provide services and deploy handsets using the Android Platform.
Correct Answer : Services
Explanation : Services : They handle background processing associated with an application.
Correct Answer : They handle data and database management issues
Explanation : Content Providers : They handle data and database management issues.
Correct Answer : An activity represents a single screen with a user interface,in-short Activity performs actions on the screen.
Correct Answer : A broadcast receiver is implemented as a subclass of BroadcastReceiver class
Explanation : A broadcast receiver is implemented as a subclass of BroadcastReceiver class and each message is broadcaster as an Intent object.
Correct Answer : Represents a portion of user interface in an Activity.
Explanation : Fragments : Represents a portion of user interface in an Activity.
Correct Answer : Views
Explanation : Views : UI elements that are drawn on-screen including buttons, lists forms etc.
Correct Answer : Layouts
Explanation : Layouts : View hierarchies that control screen format and appearance of the views.
Correct Answer : Messages wiring components together
Correct Answer : Cupcake
Explanation : On April 27, 2009, the Android updated to 1.5 with the codename of the dessert item (Cupcake). It has a Linux kernel 2.6.27.
Correct Answer : Donut
Explanation : On September 15, 2009, Android 1.6 was released with the name Donut. It contains numerous new features such as voice and text entry search, bookmark history, contacts, web, "speak" a string of text, faster camera access, user can select multiple photos for deletion, support text-to-speech engine, WVGA screen resolutions.
Correct Answer : Permission that the application requires
Explanation : The AndroidManifest.xml file contains information of your package, including components of the application such as activities, services, broadcast receivers, content providers, etc. It is responsible for protecting the application to access any protected parts by providing the permissions.
AndroidManifest.xml
Correct Answer : Applications Framework
Explanation : On the top of Native libraries and android runtime, there is an application framework. Android framework includes Android API's such as UI (User Interface), telephony, resources, locations, Content Providers (data), and package managers. It provides a lot of classes and interfaces for android application development.
Correct Answer : Paused
Explanation : A service is a component that runs in the background. It is used to play music, handle network transaction, etc.
Correct Answer : Version 1.6 or version 2.0
Correct Answer : Muffin
Explanation : Muffin is not a nickname of any android version.
Explanation :
Explanation : A Fragment is a piece of an activity which enable more modular activity design. It will not be wrong if we say, a fragment is a kind of sub-activity.
Correct Answer : onStart
Explanation : onStart()The onStart() method is called once the fragment gets visible.
onStart()
Correct Answer : onStop
Explanation : onStop()Fragment going to be stopped by calling onStop()
Correct Answer : onDestroy
Explanation : onDestroy()onDestroy() called to do final clean up of the fragment's state but Not guaranteed to be called by the Android platform.
Correct Answer : onResume
Explanation : onResume()Fragment becomes active
Correct Answer : transitions
Explanation : Activity and Fragment transitions in Lollipop are built on top of a relatively new feature in Android called Transitions.
Correct Answer : 3
Explanation : Basically fragments are divided as three stages : Single Frame Fragment, List fragments and Fragments transaction.
Correct Answer : android 3.0 version
Explanation : Single frame fragment is designed for small screen devices such as hand hold devices(mobiles) and it should be above android 3.0 version.
Correct Answer : list fragment
Explanation : Fragments having special list view is called as list fragment
Correct Answer : SQLite
Explanation : SQLite is an open-source relational database, i.e., used to perform database operations on android devices such as storing, manipulating, or retrieving persistent data from the database. It is embedded in android by default. So, there is no need to perform any database setup or administration task.
Correct Answer : android.database
Explanation : onResume is called when an activity will start interacting with the user.
Correct Answer : Sticky
Explanation : If we use the sendStickyBroadcast(Intent) method, the Intent is sticky. It means that the Intent that we are sending will stay around after the completion of the broadcast.
Correct Answer : toast class
Explanation : An android toast provides feedback to the users about the operation being performed by them. It displays the message regarding the status of operation initiated by the user.
Correct Answer : Log.d()
Explanation : The Lod.d() method in android is used to log debug messages.
Lod.d()
Correct Answer : onDestroy() method
Explanation : The onDestroy() method can be used by services to clean up any resources like receivers, threads, registered listeners, etc.
Correct Answer : android.view.ViewGroup
Explanation : In Android, all layout classes are the subclasses of android.view.ViewGroup.
Correct Answer : LinearLayout
Explanation : LinearLayout in android aligns all children either vertically or horizontally. The direction of the LinearLayout can be specified using the android orientation attribute.
Correct Answer : Intent
Explanation : An Android Intent is an abstract description of an operation to be performed.
Correct Answer : Context.startActivity()
Explanation : Context.startActivity() :The Intent object is passed to this method to launch a new activity or get an existing activity to do something new.
Correct Answer : Context.startService()
Explanation : Context.startService() : The Intent object is passed to this method to initiate a service or deliver new instructions to an ongoing service.
Correct Answer : ACTION_DIAL tel:123
Explanation : ACTION_DIAL tel:123 : Display the phone dialer with the given number filled in.
Correct Answer : Show settings for choosing wallpaper
Explanation : ACTION_SET_WALLPAPER : Show settings for choosing wallpaper
Correct Answer : putExtras() and getExtras() methods
Explanation : The extras can be set and read using the putExtras() and getExtras() methods respectively.
Correct Answer : This flag is generally used by activities that want to present a "launcher" style behavior
Explanation : FLAG_ACTIVITY_NEW_TASK: This flag is generally used by activities that want to present a "launcher" style behavior: they give the user a list of separate things that can be done, which otherwise run completely independently of the activity launching them..
Explanation : View class extends Object class and implements Drawable.Callback, KeyEvent.Callback and AccessibilityEventSource.
Correct Answer : match_parent
Explanation : match_parent means it will occupy the complete space available on the display of the device.
Correct Answer : wrap_content
Correct Answer : onCreate() callback
Explanation : Android system initiates its program with in an Activity starting with a call on onCreate() callback method..
Correct Answer : startActivityForResult()
Explanation : startActivityForResult() should use when need to pass data back from an activity.
Correct Answer : Fragments
Explanation : In android mini-activities are also known as Fragments
