Page 1 : BCSTY, , Android OS Practice Questions, , 2021-22, , Android Multiple Choice Questions :1) Android is licensed under which open source licensinglicense?, A. Gnu’s GPL, B. Apache/MIT, C. OSS, D. Sourceforge, Ans: B, 2) Although most people’s first thought when they think ofAndroid is Google,, Android is not actually owned by Google. Who owns the Android platform?, A. Oracle Technology, B. Dalvik, C. Open Handset Alliance, D. The above statement is and Android is owned by Google, Ans: C, 3) As an Android programmer, what version of Android should you use as your, minimum development target?, , A. ersions 1.6 or 2.0, B. Versions 1.0 or 1.1, C. Versions 1.2 or 1.3, D. Versions 2.3 or 3.0, Ans: A, 4), , What was Google’s main business, , motivation forsupporting Android?, A. To level the playing field for mobile devices, B. To directly compete with the iPhone, C. To corner the mobile device application market for licensing, purposes, D. To allow them to advertise more, Ans: D

Page 2 : BCSTY, , 5), , Android OS Practice Questions, , What was the first phone released that ran the, , AndroidOS?, A. Google gPhone, B. T-Mobile G1, C. Motorola Droid, D. HTC Hero, Ans: B, 6), , From a phone manufacturer’s point of view, what, , makesAndroid so great?, A. Aside from some specific drivers, it provides everything to make a, phone work, B. It makes the hardware work better, C. It allows them to compete with Apple’s iPhone, D. It allows users to create apps, generating revenue for the, companies, Ans: A, 7) What is a funny fact about the start of Android?, A. It was orginaly going to be called UFO, B. The first version of Android was released without an actual phone, on the market, C. Androids main purpose was to unlock your car door when you left, the keys inside of it., D. Was going to be a closed source application to make more money, for its company., Ans: B, 8) What year was the Open Handset Alliance announced?, A. 2005, B. 2006, C. 2007, D. 2008, Ans: C, , 2021-22

Page 3 : BCSTY, , 9), , Android OS Practice Questions, , A device with Android installed is needed to develop, , appsfor Android., A. True, B. False, Ans: B, 10) Android tries hard to, , low-level, , components, such as the software stack, with interfaces so, that vendor-specific code can be managed easily., A. confound, B. absract, C. modularize, D. compound, Ans: B, 11) Google licensed some proprietary apps., A. True, B. False, Ans: A, 12) What part of the Android platform is open source?, A. low-level Linux modules, B. all of these answers #The entire stack is an open source platform, C. native libraries, D. application frame work, E. complete applications, Ans: B, 13) When did Google purchase Android?, A. 2007, B. 2005, C. 2008, D. 2010, Ans: B, , 2021-22

Page 4 : BCSTY, , Android OS Practice Questions, , 14), Android releases since 1.5 have been given, nicknamesderived how?, A. Adjective and strange animal, B. Food, C. Something that starts w/ ‘A’ -> Something that starts w/ ‘B’…, Ans: B, 15) Which one is not a nickname of a version of Andriod?, A. cupcake, B. Gingerbread, C. Honeycomb, D. Muffin, Ans: D, 16), , Android doesn’t make any assumptions about a, , device’sscreen size, resolution, or chipset.:, A. True, B. False, Ans: A, 17) Why are the so few users left with versions 1.0 and 1.1?, A. The first phones were released with version 1.5, B. 1.0 and 1.1 had security holes that forced carriers to recall phones, using them, C. 1.0 and 1.1 are just number designations for the version Apple’s, iPhone is running, D. Everyone with 1.0 and 1.1 were upgraded to 1.5 over the air, automatically, Ans: D, 18), , Which Android version had the greatest share of, , themarket as of January 2011?, , 2021-22

Page 5 : BCSTY, A. 1.1, , Android OS Practice Questions, , B. 1.5, C. 2.3, D. 3.4, Ans: B, 19) Which piece of code used in Android is not open source?, A. Keypad driver, B. WiFi? driver, C. Audio driver, D. Power management, Ans: B, 20), , Android is built upon the Java Micro Edition, , (J2ME)version of Java., A. True, B. False, Ans: B, 21), , Which among these are NOT a part of Android’s, , nativelibraries?, A. Webkit, B. Dalvik, C. OpenGL, D. SQLite, Ans: B, 22) Android is based on Linux for the following reason., A. Security, B. Portability, C. Networking, D. All of these, Ans: D, , 2021-22

Page 6 : BCSTY, , 23), , Android OS Practice Questions, , What operating system is used as the base of, , theAndroid stack?, A. Linux, B. Windows, C. Java, D. XML, Ans: A, 24), , What year was development on the Dalvik, , virtualmachine started?, A. 2003, B. 2005, C. 2007, D. 2006, Ans: B, 25), , What is a key difference with the distribution of, , appsfor Android based devices than other mobile device, platform applications?, A. Applications are distributed by Apple App Store only, B. Applications are distributed by multiple vendors with different, policies on applications., C. Applications are distributed by multiple vendors with the exact, same policies on applications., D. Applications are distributed by the Android Market only., Ans: B, 26), , When developing for the Android OS, Java byte, , code iscompiled into what?, A. Java source code, B. Dalvik application code, C. Dalvik byte code, D. C source code, Ans: C, , 2021-22

Page 7 : BCSTY, , Android OS Practice Questions, , 27) What does the .apk extension stand for?, A. Application Package, B. Application Program Kit, C. Android Proprietary Kit, D. Android Package, Ans: A, 28), When you distribute your application, commercially,you’ll want to sign it with your own, key., A. True, B. False, Ans: A, 29), , How does Google check for malicious software in, , theAndroid Market?, A. Every new app is scanned by a virus scanner, B. Users report malicious software to Google, C. Google employees verify each new app, D. A seperate company monitors the Android Market for Google, Ans: B, 30), Which of these are not one of the three, maincomponents of the APK?, A. Dalvik Executable, B. Resources, C. Native Libraries, D. Webkit, Ans: D, 31), , What is the name of the program that converts, , Javabyte code into Dalvik byte code?, , 2021-22

Page 8 : BCSTY, , Android OS Practice Questions, , A. Android Interpretive Compiler (AIC), B. Dalvik Converter, C. Dex compiler, D. Mobile Interpretive Compiler (MIC), Ans: C, 32), What was the main reason for replacing the Java, VMwith the Dalvik VM when the project began?, A. There was not enough memory capability, B. Java virtual machine was not free, C. Java VM was too complicated to configure, D. Java VM ran too slow, Ans: B, 33) Android Applications must be signed., A. After they are installed, B. Before they are installed, C. Never, D. Within two weeks of installation, Ans: B, 34), Which of the following are not a component of an, APKfile?, A. Resources, B. All of these are components of the APK, C. Native Libraries, D. Dalvik executable, Ans: B, 35), The AWT and Swing libraries have been removed, fromthe Android library set., A. True, B. False, Ans: A, , 2021-22

Page 9 : BCSTY, , Android OS Practice Questions, , 36), The R.java file is where you edit the resources for, yourproject., A. True, B. False, Ans: B, 37) What is contained within the manifest xml file?, A. The permissions the app requires, B. The list of strings used in the app, C. The source code, D. All other choices, Ans: A, 38) What is contained within the Layout xml file?, A. Orientations and layouts that specify what the display looks like., B. The permissions required by the app., C. The strings used in the app., D. The code which is compiled to run the app., Ans: A, 39) The emulated device for android., A. Runs the same code base as the actual device, all the way down to, the machine layer., B. Is more of a simulator, and acts as a virtual machine for the, Android device., C. Runs the same code base as the actual device, however at a higher, level., D. An imaginary machine built on the hopes and dreams of baby, elephants., Ans: A, , 2021-22

Page 10 : BCSTY, , 40), , Android OS Practice Questions, , Your Java source code is what is directly run on, , theAndroid device., A. True, B. False, Ans: B, 41), The Emulator is identical to running a real phoneEXCEPT when, emulating/simulating what?, A. Telephony, B. Applications, C. Sensors, D. The emulator can emulate/simulate all aspects of a smart phone., Ans: C, 42) How is a simulator different from an emulator?, A. Emulators are only used to play old SNES games, simulators are, used for software development, B. The emulator is shipped with the Android SDK and third party, simulators are not, C. The emulator can virtualize sensors and other hardware features,, while the simulator cannot, D. The emulator imitates the machine executing the binary code,, rather than simulating the behavior of the code at a higher level., Ans: D, 43) The R file is a(an) generated file, A. Automatically, B. Manually, C. Emulated, D. None of the above, Ans: A, 44) An activity can be thought of as corresponding to what?, , 2021-22

Page 11 : BCSTY, , Android OS Practice Questions, , A. A Java project, B. A Java class, C. A method call, D. An object field, Ans: B, 45), To create an emulator, you need an AVD. What, does itstand for?, A. Android Virtual Display, B. Android Virtual Device, C. Active Virtual Device, D. Application Virtual Display, Ans: B, 46) The Android SDK ships with an emulator., A. True, B. False, Ans: A, 47), , The file specifies the layout, , of yourscreen., A. Layout file, B. Manifest file, C. Strings XML, D. R file, Ans: A, 48), , The manifest explains what the application, , consists ofand glues everything together., A. True, B. False, Ans: A, 49), , The Android Software Development Kit (SDK) is all, , youneed to develop applications for Android., A. True, B. False, Ans: A, , 2021-22

Page 12 : BCSTY, , Android OS Practice Questions, , 50), What is the driving force behind an Android, applicationand that ultimately gets converted into a Dalvik, executable?, A. Java source code., B. R-file., C. the emulator., D. the SDK, Ans: A, 51), , While developing Android applications, developers, , cantest their apps on…, A. Emulator included in Android SDK, B. Physical Android phone, C. Third-party Emulators (Youwave, etc.), D. All three options will work., Ans: D, 52), , What file is responsible for glueing everthing, , together ,explaining what the applicatin consists of, what, its main building blocks are, ext…?, A. Layout file, B. Strings XML, C. R file, D. Manifest file, Ans: D, 53), , The XML file that contains all the text that, , yourapplication uses., A. stack.xml, B. text.xml, C. strings.xml, D. string.java, Ans: C, , 2021-22

Page 13 : BCSTY, , Android OS Practice Questions, , 54), Which of the following is the most “resource, hungry”part of dealing with Activities on Android, A. Closing an app, B. Suspending an app, C. Opening a new app, D. Restoring the most recent app, Ans: C, 55), What runs in the background and doesn’t have, any UIcomponents?, A. Intents, B. Content Providers, C. Services, D. Applications, Ans: C, 56) What is an Activity?, A. A single screen the user sees on the device at one time, B. A message sent among the major building blocks, C. A component that runs in the background without any interface., D. Context referring to the application environment., Ans: A, 57) When an activity doesn’t exist in memory it is in., A. Starting state, B. Running state, C. Loading state, D. Inexistent state., Ans: A, 58), Which of the following is NOT a state in the, lifecycle of aservice?, A. Starting, B. Running, C. Destroyed, D. Paused, Ans: D, , 2021-22

Page 14 : BCSTY, , 59), , Android OS Practice Questions, , There is no guarantee that an activity will be, , stoppedprior to being destroyed., A. True, B. False, Ans: A, 60) Intents, A. are messages that are sent among major building blocks, B. trigger activities to being, services to start or stop, or broadcast, C. are asynchronous, D. all of these, Ans: D, 61), In an explicit intent, the sender specifies the, type ofreceiver., A. True, B. False, Ans: B, 62), , an implicit intent is the sender specifies the, , type ofreceiver?, A. True, B. False, Ans: A, 63), , When the activity is not in focus, but still visible, , on thescreen it is in?, A. running state, B. Paused state, C. stopped state, D. destroyed state, Ans: B, 64) An activity in a stopped state is doing nothing., A. True, B. False, Ans: B, , 2021-22

Page 15 : BCSTY, , 65), , Android OS Practice Questions, , Application contexts are independent of the, , activity lifecycle., A. True, B. False, Ans: A, 66) Services have any user interface components, A. True, B. False, Ans: B, 67), Broadcast receivers are Android’s, implementation of asystem-wide publish/subscribe, mechanism, or more precisely, what design pattern?, A. Observer, B. Facade, C. Mediator, D. Command, Ans: A, 68) YAMBA stands for Yet Another Mobile Banking App., A. True, B. False, Ans: B, 69), , Lists and adapters are more organizational, , aids thanuser interface elements in Android., A. True, B. False, Ans: A, 70) What built-in database is Android shipped with?, A. SQLite, B. Apache, C. MySQL, D. Oracle, , 2021-22

Page 16 : BCSTY, , Android OS Practice Questions, , Ans: A, 71) Creating a UI (User Interface) in Android, requirescareful use of…, A. Java and SQL, B. XML and Java, C. XML and C++, D. Dreamweaver, Ans: B, 72) What will services be used for in the Yamba project?, A. Recompile the source code, B. It will update tweets periodically in the background, C. The services will pause the app, D. Configures the user interface, Ans: B, 73), , Which answer is not part of the design, , philosophytalked about in chapter five?, A. Always whole and complete, B. Small increments, C. Lagre increments, D. Refactoring code, Ans: C, 74), App Widgets are can be place on the home screen, by theuser to check for updates are available?, A. True, B. False, Ans: A, 75), , The android OS comes with many useful, , system services, which include processes you can, easily ask forthings such as your.., A. All of these and more., B. Location, C. Sensor Readings, , 2021-22

Page 17 : BCSTY, , Android OS Practice Questions, , D. WiFi? Hot Spots, Ans: A, 76), , What does the Gargenta mean in his Design, , Philosophywhen he says that the project will, “Always, be whole and complete”?, A. He means that when we finish the entire project we will have, a working application, even though there will be points along, the waywhen we will stop and the application will not run., B. He means that the program must always be able to compile., C. He means that we will work on the program by adding self, contained chunks to it so that at every stopping point the, applicationruns as though it were a whole and complete, application. Each additional chunk simply adds a new, functionality to the application., D. None of the above, Ans: C, 77) An Android application is a loose collection of, contentproviders, activities, broadcast receivers, and, services., A. True, B. False, Ans: A, 78) Which of the following is NOT an activity we will, becreating for the YAMBA project?, A. Preferences Activity, B. Update Activity, C. Timeline Activity, D. Status Activity, Ans: B, 79), , The timeline receiver will receive messages, , from theAndroid system., A. True, B. False, , 2021-22

Page 18 : BCSTY, , Android OS Practice Questions, , Ans: B, 80) Status data will be exposed to the rest of the, Androidsystem via:, A. Intents, B. A content provider, C. Network receivers, D. Altering permissions, Ans: B, 81) If the UI begins to behave sluggishly or crash, whilemaking network calls, this is likely due to…, A. Network latency, B. Hardware malfunctions, C. Virus on the Server, D. Activity manager contains too much., Ans: A, 82), , How does Gargenta approach the problem of, , the appacting sluggishly due to network latency?, A. Starting over, B. Switching API levels, C. Refactoring code, D. Multithreading, Ans: D, , 2021-22