Android Question & Answers January 7, 2023 By WatElectronics This article lists 100 Android MCQs for engineering students. All the Android Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Android. Android is the OS of mobiles and it is the Linux kernel version modified with the other available software i.e., open-source. The design of android is basically for touchscreen purposes in tablets and smartphones. Developers from 'Open Handset Alliance' has been developed Android under Google as its commercial sponsor. In 2007, on 1st November, an Android commercial device has been launched, HTC Dream HTC launched its first Android mobile in 2008 September. Each app in Android itself acts as a distinct user. The system assigns every application with Linux User Ids that are unique. Every process has its own VM (virtual machine). Application code running on Android is isolated from the other applications. The system in Android begins the process when the app components are required to get executed and shut as per requirements. The principle implemented by Android systems is ‘Least Privilege’. By default, the applications in the system are accessible by the components when required and then stop. Apps permissions in Androids make it more secure. If the permissions are not provided apps are unable to access system parts. Components of Apps are considered the essential blocks that build Android. They can easily package and are sold via stores like Opera Mobile store, Google Play, F-droid, and so on. 1). What is an OS based on Linux developed for mobiles? DOS Android Microsoft Windows Ubuntu None Hint 2). What provides the unique method for the development of applications in mobiles? DOS Android Microsoft Windows Ubuntu None Hint 3). Beta version of Android was first developed by _____________? Google HTC Microsoft Window Opera None Hint 4). What is AOSP? Android Open-Source Project Android Organized Simulation Project Android Organization Synchronized Propagation Accumulation-Oriented Synchronized Project None Hint 5). What in Android is based upon manipulating directly? Home Screen Status Bar Interface App Lists None Hint 6). What is the purpose of the interface in Android? Swiping Tapping Pinching All Mentioned Above None Hint 7). Full-size keyboards i.e., physical in Androids can be supported via ____________? Bluetooth USB Wi-fi Either a or b None Hint 8). What is FOSS? Free and Open-source Software Flexible and Oriented Space software Free and Oriented Space Synchronization Fast and Organized Space Software None Hint 9). What is the hub of information in devices of Android? Home Screen Status Bar Interface App Lists None Hint 10). Devices of Android boots to __________? Home Screen Status Bar Interface App Lists None Hint 11). What does a home screen in Android consist of? App Icons Widgets a & b None None Hint 12). What launches are the applications associated with? App Icons Widgets a & b None None Hint 13). What Android devices are used in displaying Weather forecasts? App Icons Widgets Interface None None Hint 14). What deals with screen adjustments in Androids? Home Screen Status Bar Interface App Lists None Hint 15). What shows the device information in Android? Home Screen Status Bar Interface App Lists None Hint 16). What is Android? Operating System Server Client Browser None Hint 17). Why Android developed is Linux based? Security Networking Portability All Mentioned Above None Hint 18). Android OS use __________virtual machine? Simple Virtual Machine Java Virtual Machine Dalvik Virtual Machine C Virtual Machine None Hint 19). In ________ executable is APK? Simple Virtual Machine Java Virtual Machine Dalvik Virtual Machine C Virtual Machine None Hint 20). What displays the updated information? Home Screen Status Bar Interface App Lists None Hint 21). What is the purpose of DVM in Androids? Optimizing Virtual Machines Memory Optimizing Battery Life Optimizing Device Performance All Mentioned Above None Hint 22). What converts the files of the class into .dex files? Simple Virtual Machine Java Virtual Machine Dalvik Virtual Machine C Virtual Machine None Hint 23). What does .odex mean? Optimized Dalvik Executable Organized Dos Files Executable Organized Distributed Executable Optimized Direct Encoded None Hint 24). What is register-based? Simple Virtual Machine Java Virtual Machine Dalvik Virtual Machine C Virtual Machine None Hint 25). What is ART? Android Runtime Antenna Repeater Android Repeater Antenna Replaceable None Hint Android MCQs for Interviews 26). What language is Android built on? C++ Ubuntu Java Python None Hint 27). What is APK? Android Programming Kernel Android Package Kit Android Programming Kit Application Package Kit None Hint 28). How the files APK can be compiled? XML Android Studio Browser None None Hint 29). What is XML? Extensible Manifest Location Extensible Markup Language Enhanced Manifest Language Enhanced Markup Locomotive None Hint 30). In __________, XMLs utilized in implementing data related to UI? DOS Android Microsoft Windows Ubuntu None Hint 31). What does not make the layout look heavy? XML Android Studio Browser None None Hint 32). Manifest XML in Androids have ____________? Layouts Information Applications Information Activities Information All Mentioned Above None Hint 33). What shares the information among applications in Android? XML Android Studio Content Provider Virtual Machines None Hint 34). Mini activity in Android is referred to as ________? Activity Adapter File Fragment None Hint 35). What are the various types of Fragments? Single Frame Fragments List Fragments Fragments Transaction All Mentioned Above None Hint 36). Which fragments are utilized for hand-held devices? Single Frame Fragments List Fragments Fragments Transaction All Mentioned Above None Hint 37). Fragments with a special view as list format is referred to as ___________? Single Frame Fragments List Fragments Fragments Transaction All Mentioned Above None Hint 38). What is moving from one fragment to another? Single Frame Fragments List Fragments Fragments Transaction All Mentioned Above None Hint 39). What handles the interaction of users to the screen of smartphones? Services Activities Broadcast Receivers Content Provider None Hint 40). What handles background application processing? Services Activities Broadcast Receivers Content Provider None Hint 41). What is the purpose of Broadcast Receivers in Android? To Handle User Interaction To Handle Background Processing To Handle Communication To Handle Data None Hint 42). What handles issues of managing databases? Services Activities Broadcast Receivers Content Provider None Hint 43). Actions on screen performed are known as __________? Services Activities Broadcast Receivers Content Provider None Hint 44). What responds to the broadcasting messages obtained from various applications? Services Activities Broadcast Receivers Content Provider None Hint 45). What represents the UIs portion in any Activity? Fragments Views Layouts Intents None Hint 46). What responds to the inputs of a user? Fragments Views Layouts Intents None Hint 47). A formatted label of text is displayed by ___________? Text View Button Image View Edit Text None Hint 48). What is the critical section in Android development? Fragments Views Layouts Intents None Hint 49). What is the purpose of Image view? Display Formatted Text Label Display an Image Resource Displays a Clickable Image Performs Action None Hint 50). What is clicked to perform actions? Text View Button Image View Edit Text None Hint Android MCQs for Students 51). What displays an image in Android? Text View Image Button Image View Edit Text None Hint 52). What contains various items? List View Button Image View Edit Text None Hint 53). Where a user can insert input? Text View Button Image View Edit Text None Hint 54). What views the hierarchies to control the format of the screen? Fragments Views Layouts Intents None Hint 55). What wires the components? Fragments Views Layouts Intents None Hint 56). What are the resources in Android? Strings Drawable Pictures Constants All Mentioned Above None Hint 57). What is the file for application configuration? Fragments Manifest Layouts Intents None Hint 58). How the activities in the Android are killed? finish() Method finish activity (int request code) a & b Close() None Hint 59). What is ADB in Android? Android Debug Bridge Application Data Bridge Application Delete Broadcast Automated Delete Broadcast None Hint 60). What does ADB facilitate? Installing Apps Debugging Apps a & b None None Hint 61). What controls the Android devices from computers? ADB AVD XML Manifest None Hint 62). What does the folder of src contain in Android? C Files Java Files C++ Files XML None Hint 63). What is AVD in Android? Active Visible Display Android Virtual Display Android Visible Device Android Virtual Device None Hint 64). Android Emulator that runs the OS of Android in the VMs referred to as ________? ADB AVD XML Manifest None Hint 65). What is the purpose of an AVDs manager in Android? Create AVDs Manage AVDs Delete AVDs a & b None Hint 66). What is stored in AVD? Device User Data Installed Apps & Settings Emulated SD Card All Mentioned Above None Hint 67). Error in Android is shown in __________? ADB CPU Logcat Memory None Hint 68). What is the cat in Logcat? Concatenate Content Communicate Category None Hint 69). How many layers are present in the architecture of Android? Five Four Three Two None Hint 70). What is the top layer in the architecture of Android? Application Framework Linux Kernel Libraries Android Runtime None Hint 71). Pre-installed applications are located in _________? Application Linux Kernel Libraries Android Runtime None Hint 72). What are the services included in the Application Framework? Activity Manager Notification Manager Package Manager All Mentioned Above None Hint 73). What is the important segment of Androids architecture? Application Framework Linux Kernel Libraries Android Runtime None Hint 74). Dalvik virtual Machine is present in ____________? Application Framework Linux Kernel Libraries Android Runtime None Hint 75). What supports Android for running various instances efficiently? JVM DVM Compiler Emulator None Hint Android MCQs for Exams 76). DVMs are based upon ___________ for threading? Application Framework Linux Kernel Libraries Android Runtime None Hint 77). Which layer is known as the heart of Androids architecture? Application Framework Linux Kernel Libraries Android Runtime None Hint 78). What provides a layer of abstraction amid the hardware of the device and the remaining components? Application Framework Linux Kernel Libraries Android Runtime None Hint 79). What handles security among applications & systems? Application Framework Linux Kernel Libraries Android Runtime None Hint 80). What allocates the resources to process based on their needs? Application Framework Linux Kernel Libraries Android Runtime None Hint 81). What provides the access to resources that are ‘non-code embedded’? Activity Manager Notification Manager Package Manager Resource Manager None Hint 82). What is the database i.e., built-in Android? Oracle MySQL SQLite All Mentioned Above None Hint 83). What is SSL? Secure Sockets Layer Secure Synchronization Layer Service Socket Layer Service Synchronization Layer None Hint 84). In which year ‘Open Handset Alliance’ is announced? 2007 2006 2005 2004 None Hint 85). Doughnut is the version of _______? DOS Android Microsoft Windows Ubuntu None Hint 86). Who is the developer of color OS? Vivo Oppo Honor Amazon None Hint 87). What is the OS developed by Vivo? Color OS Origin OS Magic UI Fire OS None Hint 88). Magic UI is developed by _____________? Vivo Oppo Honor Amazon None Hint 89). Battery life in iPhones is of low quality compared to ___________? DOS Android Microsoft Windows Ubuntu None Hint 90). Apple devices ensure more security compared to ____________ devices? DOS Android Microsoft Windows Ubuntu None Hint 91). Fire OS is the Android developed by __________? Vivo Oppo Honor Amazon None Hint 92). Android was released under ___________? Sourceforge Apache OSS None None Hint 93). Android is for ___________? Mobile Phones PCs Laptops Servers None Hint 94). First mobile device with OS as Android is _____________? Google Phone T-Mobile G1 HTC Honor None Hint 95). How to stop services in Android? stopSelf() stopService() a & b Exit() None Hint 96). What is AAPT in Android? Android Act Presentation Tool Android Application Presentation Text Android Asset Packaging Tool Application Asset Prevention Tool None Hint 97). What is OHA? Open Health Alliance Open Handset Alliance Oriented Health Application Open Handset Application None Hint 98). What does NDK stand for? Native Distinct Knowledge Native Development Kit New Design Kit Native Detecting Knowledge None Hint 99). Nine-patch image tool purpose in Android is __________________? Image Extension Tool Change Bitmap Images into Nine Sections Image Conversion Tool All Mentioned Above None Hint 100). What is GCM? Google Count Message Google Cloud Messaging Great Center Manifest Google Center Manifestation None Hint Please fill in the comment box below. Time's up
