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- Question
What is android? What are the features of Android?
- Correct Answer
- Android is a stack of software for mobile devices which has Operating System, middleware and some key applications The application executes within its own process and its own instance of Dalvik Virtual Machine Many Virtual Machines run efficiently by a DVM device DVM executes Java language?s byte code which later transforms into dex format files Features of Android : - Components can be reused and replaced by the application framework - Optimized DVM for mobile devices - SQLite enables to store the data in a structured manner - Supports GSM telephone and Bluetooth, WiFi, 3G and EDGE technologies - The development is a combination of a device emulator, debugging tools, memory profiling and plug-in for Eclipse IDE
- 1. What is needed to make a multiple choice list with a custom view for each row? Discuss
- 2. Describe Android Application Architecture. Discuss
- 3. HTML language is a set of markup
Options- A. Groups
- B. Attributes
- C. Tags
- D. Sets Discuss
- 4. Website always has
Options- A. Address
- B. Information
- C. Attachments
- D. Images Discuss
- 5. JavaScript is designed for following purpose
Options- A. To add interactivity to HTML Pages.
- B. To Execute Query Related to DB on Server
- C. To Style HTML Pages
- D. To Perform Server Side Scripting Opertion Discuss
- 6. What are the dialog boxes that are supported in android? Explain. Discuss
- 7. What is the TTL (Time to Live)? Why is it required? Discuss
- 8. What is the role of compatibility that is used in Android? Discuss
- 9. What are the multimedia features involved in making Android popular? Discuss
- 10. What are the different modes of operations used in services for Android? Discuss
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Correct Answer: Multiple choice list can be viewed by making the CheckBox android:id value be ?@android:id /text1" That is the ID used by Android for the CheckedTextView in simple_list_item_multiple_choice
Correct Answer: Android Application Architecture has the following components: * Services ? like Network Operation * Intent - To perform inter-communication between activities or services * Resource Externalization - such as strings and graphics * Notification signaling users - light, sound, icon, notification, dialog etc * Content Providers - They share data between applications
Correct Answer: Tags
Explanation:
HTML language is a set of markup tags. The code used to specify the formatting are called tags. Markup languages are designed for the processing, definition and presentation of text. The language specifies code for formatting, both the layout and style, within a text file.
HTML is an example of a markup language to improve the appearance of, and link text with data on the internet.
Correct Answer: Address
Correct Answer: To add interactivity to HTML Pages.
Correct Answer: AlertDialog : An alert dialog box supports 0 to 3 buttons and a list of selectable elements, including check boxes and radio buttons Among the other dialog boxes, the most suggested dialog box is the alert dialog box ProgressDialog: This dialog box displays a progress wheel or a progress bar It is an extension of AlertDialog and supports adding buttons DatePickerDialog: This dialog box is used for selecting a date by the user TimePickerDialog: This dialog box is used for selecting time by the user
Correct Answer: TTL is a value in data packet of Internet Protocol It communicates to the network router whether or not the packet should be in the network for too long or discarded Usually, data packets might not be transmitted to their intended destination within a stipulated period of time The TTL value is set by a system default value which is an 8-bit binary digit field in the header of the packet The purpose of TTL is, it would specify certain time limit in seconds, for transmitting the packet header When the time is exhausted, the packet would be discarded Each router receives the subtracts count, when the packet is discarded, and when it becomes zero, the router detects the discarded packets and sends a message, Internet Control Message Protocol message back to the originating host
Correct Answer: The compatibility is defined in terms of android compatible devices that run any application This application is written by third party developers using the Android platform that comes in the form of SDK and NDK There are many filters that are used to separate devices that are there to participate in the compatibility mode for the Android applications The devices that are compatible require the android to approve it for their trademark The devices that are not passes the compatibility are just given in the Android source code and can use the android trademark The compatibility is a way through which the user can participate in the Android application platform The source code is free to use and it can be used by anyone
Correct Answer: There is the demand for the rich multimedia that involves many features that are used till now to make the Android market more popular in all the phases The application includes the following: ? Mixable audio effects ? developer can easily create audio environments using the API key that is provided with it like creating equalization, bass boost, headphone feature, etc The android provide the tools that can be used to mix the audio effects and apply it ? There is also support for new media formats like VP8 open video compression format that uses a container format that can run on all the platforms and add the support for AAC and AMR encoding The applications provided allow higher quality video to be captured ? The application allows the access to multiple cameras that allows the use of APIs to include the camera and its properties in one The platform provides the application to include the camera with high and low resolution
Correct Answer: There are two modes of operations that are necessary to run depending on the value returned by the startcommand() The modes are as follows: - START_STICKY: this mode is used for the services that are explicitly started and stopped according to the need and the requirement of the user - START_NOT_STICKY or START_REDELIEVER_INTENT: this service mode is used for services that are running only when the processing command sent to them That means these run on the basis of the command that is passed to them by giving the instruction of execution - Clients uses the ContextbindService() that is used to get the persistent connection for a service To create a service that is not already running the command onCreate is used
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