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awsexchage · 7 years ago

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Android ExoPlayer + HLS + Google IMA http://ift.tt/2CbcmB1

Android ExoPlayer + HLS + Google IMA

はじめに

こんにちは streampack チームのメディです。 https://cloudpack.jp/service/option/streampack.html

Objective: ・目的 Play a HLS stream in an Android APP with ExoPlayer & display Google IMA advertisements. ExoPlayerを使用してAndroidアプリでHLSストリームを再生し、Google IMA広告を表示します。

Implementation・実装

Step 0

HLS

If you don’t have a HLS stream, please visit the following page to find one. HLSストリームがない場合は、以下のページをご覧ください。 https://github.com/notanewbie/LegalStream

IMA

If you don’t have IMA credentials, you can use demo tags. IMA資格情報がない場合は、デモタグを使用できます。 https://developers.google.com/interactive-media-ads/docs/sdks/html5/tags

Step 1

Create a new project & a blank Main Activity. 新しいプロジェクトと空白のメインアクティビティを作成してください。

MainActivity.java

package jp.co.mycompany.com.exotuto; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }

AndroidManifest.xml

Enable hardware acceleration. ハードウェアアクセラレーションを有効にしてください。

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="jp.co.mycompany.com.exotuto"> <application android:allowBackup="true" android:hardwareAccelerated="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

Dependencies ・ソフトウェアの依存関係

buid.gradle(Module:app)

apply plugin: 'com.android.application' android { compileSdkVersion 27 defaultConfig { applicationId "jp.co.mycompany.com.exotuto" minSdkVersion 15 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:27.0.0' implementation 'com.android.support.constraint:constraint-layout:1.0.2' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.1' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' compile 'com.google.android.exoplayer:exoplayer:2.6.0' compile 'com.google.android.exoplayer:exoplayer-hls:2.6.0' compile 'com.google.android.exoplayer:extension-ima:2.6.0' }

Step 2

Create a new Basic Activity & name it PlayerActivity. 新しいBasicアクティビティを作成し、それをPlayerActivityと名づけます。

Then modify MainActivity.java as follows: MainActivity.java を次のように変更します。

public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent intent = new Intent(this, PlayerActivity.class); startActivity(intent); } }

Step 3

Simple HLS implementation・単純なHLS実装

res/layout/content_player.xml

<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="jp.co.mycompany.com.exotuto.PlayerActivity" tools:showIn="@layout/activity_player"> <com.google.android.exoplayer2.ui.SimpleExoPlayerView android:id="@+id/player_view" android:focusable="true" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="10dp" /> </android.support.constraint.ConstraintLayout>

PLayerActivity.java

public class PlayerActivity extends AppCompatActivity { //Player private SimpleExoPlayerView simpleExoPlayerView; private SimpleExoPlayer player; //Logs final private String TAG = "PlayerActivity"; //HLS final private String VIDEO_URL = "https://nhkworld.webcdn.stream.ne.jp/www11/nhkworld-tv/domestic/263942/live_wa_s.m3u8"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_player); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); //ExoPlayer implementation //Create a default TrackSelector BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(); TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter); TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory); // Create a default LoadControl LoadControl loadControl = new DefaultLoadControl(); //Bis. Create a RenderFactory RenderersFactory renderersFactory = new DefaultRenderersFactory(this); //Create the player player = ExoPlayerFactory.newSimpleInstance(renderersFactory, trackSelector, loadControl); simpleExoPlayerView = new SimpleExoPlayerView(this); simpleExoPlayerView = (SimpleExoPlayerView) findViewById(R.id.player_view); //Set media controller simpleExoPlayerView.setUseController(true); simpleExoPlayerView.requestFocus(); // Bind the player to the view. simpleExoPlayerView.setPlayer(player); // Set the media source Uri mp4VideoUri = Uri.parse(VIDEO_URL); //Measures bandwidth during playback. Can be null if not required. DefaultBandwidthMeter bandwidthMeterA = new DefaultBandwidthMeter(); //Produces DataSource instances through which media data is loaded. DefaultDataSourceFactory dataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "PiwikVideoApp"), bandwidthMeterA); //Produces Extractor instances for parsing the media data. ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory(); //FOR LIVE STREAM LINK: MediaSource videoSource = new HlsMediaSource(mp4VideoUri, dataSourceFactory, 1, null, null); final MediaSource mediaSource = videoSource; player.prepare(videoSource); } //Android Life cycle @Override protected void onStop() { player.release(); super.onStop(); Log.v(TAG, "onStop()..."); } @Override protected void onStart() { super.onStart(); Log.v(TAG, "onStart()..."); } @Override protected void onResume() { super.onResume(); Log.v(TAG, "onResume()..."); } @Override protected void onPause() { super.onPause(); Log.v(TAG, "onPause()..."); } @Override protected void onDestroy() { super.onDestroy(); Log.v(TAG, "onDestroy()..."); player.release(); } }

Please run your app in the Android emulator. Androidエミュレータでアプリをテストしてください。

Step 4

Player listeners ・プレーヤーリスナー

In the onCreate method of PlayerActivity.java, please add the following listeners. PlayerActivityのonCreateメソッドで使用します。次のリスナーを追加してください。

//ExoPLayer events listener player.addListener(new Player.EventListener() { @Override public void onTimelineChanged(Timeline timeline, Object manifest) { Log.v(TAG, "Listener-onTimelineChanged..."); } @Override public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) { Log.v(TAG, "Listener-onTracksChanged..."); } @Override public void onLoadingChanged(boolean isLoading) { Log.v(TAG, "Listener-onLoadingChanged...isLoading:" + isLoading); } @Override public void onPlayerStateChanged(boolean playWhenReady, int playbackState) { Log.v(TAG, "Listener-onPlayerStateChanged..." + playbackState); switch (playbackState) { case Player.STATE_IDLE: Log.v(TAG, "STATE IDLE"); break; case Player.STATE_BUFFERING: Log.v(TAG, "STATE BUFFERING"); break; case Player.STATE_READY: Log.v(TAG, "STATE READY"); break; case Player.STATE_ENDED: Log.v(TAG, "STATE ENDED"); break; default: break; } } @Override public void onRepeatModeChanged(int repeatMode) { Log.v(TAG, "Listener-onRepeatModeChanged..."); } @Override public void onShuffleModeEnabledChanged(boolean shuffleModeEnabled) { } @Override public void onPlayerError(ExoPlaybackException error) { Log.v(TAG, "Listener-onPlayerError..."); player.stop(); player.prepare(adsMediaSource); player.setPlayWhenReady(true); } @Override public void onPositionDiscontinuity(int reason) { Log.v(TAG, "Listener-onPositionDiscontinuity..."); } @Override public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) { Log.v(TAG, "Listener-onPlaybackParametersChanged..."); } @Override public void onSeekProcessed() { } });

Step 5

IMA implementation ・IMAの実装

In PlayerActivity.java, add the following class variables. PlayerActivity.java で、次のクラス変数を追加してください。

//IMA private ImaAdsLoader imaAdsLoader; final private String AD_TAG_URI = "https://pubads.g.doubleclick.net/gampad/ads?sz=640x480&iu=/124319096/external/ad_rule_samples&ciu_szs=300x250&ad_rule=1&impl=s&gdfp_req=1&env=vp&output=vmap&unviewed_position_start=1&cust_params=deployment%3Ddevsite%26sample_ar%3Dpreonly&cmsid=496&vid=short_onecue&correlator=";

Please update the onCreate method of PlayerActivity.java as follows. PlayerActivity.java のonCreateメソッドを次のように更新してください。

//player.prepare(adsMediaSource);//Remove this line. imaAdsLoader = new ImaAdsLoader(this, Uri.parse(AD_TAG_URI)); AdsMediaSource.AdsListener adsListener = new AdsMediaSource.AdsListener() { @Override public void onAdLoadError(IOException error) { error.printStackTrace(); } @Override public void onAdClicked() { } @Override public void onAdTapped() { } }; AdsMediaSource adsMediaSource = new AdsMediaSource( mediaSource, dataSourceFactory, imaAdsLoader, simpleExoPlayerView.getOverlayFrameLayout(), null, adsListener ); player.prepare(adsMediaSource);

Results 結果

It works! できます！

Step 6

Adding IMA event listeners ・IMAイベントリスナーの追加

Please add the following code to the onCreate method of PlayerActivity.java. PlayerActivity.javaのonCreateメソッドに次のコードを追加してください。

//IMA event listeners com.google.ads.interactivemedia.v3.api.AdsLoader adsLoader = imaAdsLoader.getAdsLoader(); adsLoader.addAdsLoadedListener(new AdsLoader.AdsLoadedListener() { @Override public void onAdsManagerLoaded(AdsManagerLoadedEvent adsManagerLoadedEvent) { AdsManager imaAdsManager = adsManagerLoadedEvent.getAdsManager(); imaAdsManager.addAdEventListener(new AdEvent.AdEventListener() { @Override public void onAdEvent(AdEvent adEvent) { Log.v("AdEvent: ", adEvent.getType().toString()); switch (adEvent.getType()) { case LOADED: break; case PAUSED: break; case STARTED: break; case COMPLETED: break; case ALL_ADS_COMPLETED: break; default: break; /* Full list of events. Implement what you need. LOADED, TAPPED, PAUSED, LOG, CLICKED, RESUMED, SKIPPED, STARTED, MIDPOINT, COMPLETED, AD_PROGRESS, ICON_TAPPED, AD_BREAK_ENDED, AD_BREAK_READY, FIRST_QUARTILE, THIRD_QUARTILE, AD_BREAK_STARTED, ALL_ADS_COMPLETED, CUEPOINTS_CHANGED, CONTENT_PAUSE_REQUESTED,CONTENT_RESUME_REQUESTED */ } } }); } });

Information sources・情報源

https://github.com/sakurabird/Android-Example-HLS-ExoPlayer https://developers.google.com/interactive-media-ads/docs/sdks/android/ https://github.com/google/ExoPlayer https://google.github.io/ExoPlayer/demo-application.html

元記事はこちら

「Android ExoPlayer + HLS + IMA」

February 21, 2018 at 12:00PM

#AWS #Official #Blog

1 note · View note

siva3155 · 5 years ago

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300+ TOP ADO.NET Objective Questions and Answers

ADO.Net Multiple Choice Questions :-

1. What is the default value for the Method attribute in a ASP.NET server-side Form control A. GET B. POST C. SOAP D. SMTP Answer:- B 2. Which property allows ASP.NET controls to maintain their values when a page is posted to itself. A. EnableViewState B. MaintainValue C. SaveValue D. AutoPostBack Answer:- A 3. In a ASP.NET page, which is the best way to find if the contents of a TextBox has changed after the form containing the TextBox has been posted back to the server A. By comparing the old value with the new value B. By checking the NewValue property of the TextBox control C. By handling the TextBox control's TextChanged event D. By checking the HasChanged property of the TextBox Answer:- C 4. Which statement among the ones below is correct A. The Params and Forms collection of the HTTPRequest class are exactly same and theForms collection has been provided only for backward compatibility B. The HTTPRequest class does include the Params collection C. The HTTPRequest class does include the Forms collection D. The difference between the Params and Forms collection of the HTTPRequest class is that the Params collection also represents QueryStrings, ServerVariables, andCookies Answer:- D 5. Which statement among the ones below is correct a. If you use the server-side version of the tag, you cannot post the form to a different page. b. You can modify the Action attribute of the server-side version of the tag to post the form to a different page c. You have to set the Method and Action attributes of the server-side version of the tag to post the form to a different page d. You can use the SetAction(. method of the server-side version of the tag to post the form to a different page Answer:- A 6. If a form is posted to a different page, the you can retrieve the values of the form elements by a. Using the properties of the ASP.Net controls b. Using the GetElementByID(. method c. Using Request.Params d. The values cannot be retrieved Answer:- C 7. You are performing Form validations with Validation controls. You need to group all the errors at the top of the page and also show error messages besides each element. The messages besides each element need to be detailed and hence different from the messages at top of the page A. You can use the ValidationSummary Control to summarize the messages set in theErrorMessage property of the Validation controls. The messages set in the Text property of the Validation controls can be displayed besides each element. B. The error messages set in the SummaryText property of each Validation control havingisSummary=true will be automatically grouped at the top of the page and the messages set in the Text property can be displayed besides each element. C. The error messages in the Validation control can only be displayed in a popup D. The Validation controls cannot be used in the given scenario Answer:- A 8. How do view states work A. Using Cookies B. Using a hidden form field C. Using Session variables D. Using Application variables Answer:- B 9. You need to dynamically add a TextBox control to a page and display it at specific location A. Place a Label control at the required location in the page and add the control by manipulating the Text property of the Label control B. Place a PlaceHolder control at the required location in the page. Use the Add method of theControls collection of the PlaceHolder control to dynamically add the required control C. Build the HTML for the entire page in a String and insert the HTML code for required control in required place D. You cannot add a control to a page dynamically Answer:- B 10. You require to create an ASP.NET page with the functionality to allow a user to upload a file to the server A. You need to use the System.Web.Upload namespace B. You need to use a COM component to save the file on the server C. You need to use the SaveAs method of the HttpPostedFile class D. The ASP.Net application automatically loops through all the and saves the uploaded files to a virtual folder called "uploads" Answer:- C

ADO.NET MCQs 11. You need to programmatically add a user control without using the Register directive in your code A. Use AddUserControl B. Use cannot programmatically add a user control C. Use UserControl.Add D. Use LoadControl Answer:- D 12. You need to develop a business component myComp.dll in .Net and use it in your ASP.NET page a. You require to register the component using regsvr32.exe b. You require to register the component using TlbExp.exe c. You require to copy the component to the /bin directory in your applications root directory d. You require to copy the component to the /bin directory in your applications root directory and register the component using regsvr32.exe Answer:- C 13. Is it possible for multiple aspx pages to use the same code-behind file, if required A. Yes B. No Answer:- A 14. How is a ASP.NET presentation page associated with its code-behind A. The presentation page includes the code-behind file using #include B. The presentation page includes the code-behind file using C. The presentation page inherits from the code-behind D. The ASP.NET presentation page and the code-behind page have the same name and hence are automatically associated with each other Answer:- C 15. Which namespace would you use if you need to create an ASP.NET application with Microsoft SQL Server 2000 as the database. A. System.Data.SQLServer B. System.Data.SQLClient C. System.Data.OleDb D. System.Data.Microsoft Answer:- B 16. Which namespace would you use if you need to create an ASP.NET application with Oracle as the database. A. System.Data.SQLServer B. System.Data.SQLClient C. System.Data.OleDb D. System.Data.NonMS Answer:- C 17. Which statement among the following is correct while opening a connection using theSQLConnection class A. You cannot specify a connection string B. You need to specify a Provider parameter for the connection string C. You need to use a System DSN D. You cannot use a DSN Answer:- C 18. What method of the Command object would you use if you need to retrieve a single value (for example an aggregate value. from a database A. ExecuteScalar(. B. ExecuteReader(. C. ExecuteSingle(. D. ExecuteNonQuery(. Answer:- A 19. Which are the two things you need to take care of in your ASP.Net application to take advantage of connection pooling (select two. A. You need to set the Pooling property of the Connection object to True B. You need to use the same exact connection string whenever you open a database connection C. You need to call the ReleaseToPool(. method after the connection is closed D. You need to explicitly close the connection with the Close(. method Answer:- B,D 20. You have created a ASP.Net page Transaction by using A. If a transaction already exists, the page will execute within the context of the transaction. However it will not create a new transaction B. If a transaction already exists, the page will execute within the context of the transaction. 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The Cache object cannot be used to cache a DataSet, it can only cache a DataTable d. The code block is syntactically incorrect and should actually be Set Cache("myCachedDataSet". = dstDataset Answer:- A 29. How can you load an XML file directly into a DataSet A. By setting the XML property of the DataSet class B. By using the GetXML(. method of the DataSet class C. By using the ReadXml(. method of the DataSet class D. You cannot load an XML file directly into a DataSet Answer:- C 30. Your site has been restructured and the paths of few pages have changed. Which method would you use to redirect users requesting for a pages using the old URL A. Create an ISAPI filter to do the above task B. Create an entry in the section of the Web.Config file C. Use the Application.Config file D. Handle the Application_BeginRequest event and use the RewritePath(. method Answer:- D 31. Which statement about the Web.Config file is the most accurate A. The Web.Config file can be only placed in the root of a Web Site to override settings in theMachine.Config file for all applications in a particular Web Site B. The Web.Config file can only be placed in the root of a particular virtual directory C. The Web.Config file can be placed in the root of the Web Site and the root of a virtual directory. The settings from the file in the virtual directory overrides the settings from the file in the Web Site D. The Web.Config file can be placed in the root of the Web Site and the root of a virtual directory and in any subdirectory of an application. The settings from a file at a particular level override the settings from the ones above it. Answer:- D 32. The settings in the Web.Config file are case-sensitive A. True B. False Answer:- 33. The settings in the Web.Config file can be configured to apply to A. An application B. An application or a particular directory C. An application or a particular directory or even an individual file D. The Web.Config file always applies to all pages in the current directory and its subdirectories Answer:- C 34. Is there a way to prevent configuration settings in a Web.Config file from being overridden by aWeb.Config file located below it A. Yes, you can use the allowOverride attribute in the tag to prevent configuration settings in a Web.Config file from being overridden by a Web.Config file located below it B. Yes, you can use the tag to prevent configuration settings in aWeb.Config file from being overridden by a Web.Config file located below it C. If a Web.Config file exist at a particular level then all settings in the Web.Config file located above it are always ignored D. You cannot have more than one Web.Config file in an ASP.NET application Answer:- A 35. If you have an ASP.NET application with cookieless sessions enabled, which statement among the A. You cannot use relative URL's with cookieless sessions B. You cannot use absolute URL's with cookieless sessions C. Cookieless sessions have no relation with URL's D. You cannot have cookieless sessions with an ASP.NET application Answer:- B ADO.Net Objective type Questions with Answers 36. You are part of a team that is using Visual Studio .NET to develop a Web application. You have placed a number of configuration settings for the application in the server's Machine.config file. You learn in a meeting that one of your co-workers has created a Web.config file to store these settings, though in comparing notes you realize that you and your co-worker have used different settings. Which of the following describes what will happen when you execute the application a. The application will run correctly and will use the settings in the Web.config file, ignoring theMachine.config settings b. The application will run correctly and will use the settings in the Machine.config file, ignoring the Web.config settings c. The application will not run correctly until you either remove the Web.config file or delete the settings from the Machine.config file d. The application will run correctly, using only the settings that are identical in the Web.configand Machine.config files e. The application will not run correctly until you modify either the Web.config file or theMachine.config file so that the application settings are identical Answer:- A 37. You are preparing to deploy an ASP.NET Web application. You are currently creating the deployment project. You have started the Web setup project, which is namedAccountManagerDeploy, and added the application output to the project, and now you need to set the directory on the Web server to which the application will be installed. Which of the following procedures should you use to do so (Choose two. Each correct answer presents part of the solution.. A. Set the VirtualDirectory property in the Properties window. B. Select the Web Application Folder in the File System Editor. C. Select the AccountManagerDeploy project in the Solution Explorer. D. Set the Folder property in the Properties window. E. Select the Primary output from AccountManagerDeploy icon in the Solution Explorer. Answer:- A, B 38. You are part of a team that is using Visual Studio .NET to develop a Web application. You are looking through the files in the application, and you see the following files: createmembership.aspx createmembership.aspx.vb Which two of the following statements most accurately describe these two files (Select two.. A. The createmembership.aspx.vb file is a Web form, which displays a user interface to the user B. The createmembership.aspx file is a code file, which contains code that interacts with the user interface in the Web form C. The createmembership.aspx file is an uncompiled file that will become createmembership.aspx.vb when it is compiled D. The createmembership.aspx.vb file is a code file, which contains code that interacts with the user interface in the Web form E. The createmembership.aspx file is a Web form, which displays a user interface to the user F. The createmembership.aspx.vb file is the compiled version of createmembership.aspx Answer:- D, E 39. You are using Visual Studio .NET to develop a Web application. You are beginning to debug your application, and you would like to store debug messages in the Windows event log as you proceed with testing. Which of the following will allow you to do so A. TextWriterTraceListener B. DefaultTraceListener C. EventLogTraceListener D. TraceSwitch Answer:- C 40. You are using Visual Studio .NET to develop a Web application for a large video rental store. The titles, as well as other information about the store's videotapes, laser disks, DVDs, and audio books, are stored in a SQL Server 2000 database. The store wants to allow visitors to its Web site to browse the list of titles sorted in various ways, such as by medium (VHS, DVD, etc.., genre, director, and so on. You have created a number of stored procedures to facilitate the different ways of presenting the data. Given an existing DataSet named dsVids and a Connection named conn, which of the following code examples illustrates the correct way to call the stored procedure named ListDVDTitles that returns the list of DVD titles A. Dim daDVDList as New SqlDataAdapter(. daDVDList.SelectCommand = New SqlCommand(. daDVDList.SelectCommand.Connection = conn daDVDList.SelectCommand.CommandText = "ListDVDTitles" daDVDList.SelectCommand.CommandType = CommandType.StoredProcedure daDVDList.Fill(dsVids, "Titles". B. Dim daDVDList as New SqlDataAdapter(. daDVDList.SelectCommand = New StoredProcedure(. daDVDList.SelectCommand.Connection = conn daDVDList.SelectCommand.CommandText = "ListDVDTitles" daDVDList.SelectCommand.CommandType = CommandType.SQLCommand daDVDList.Fill(dsVids, "Titles". C. Dim daDVDList as New SqlDataAdapter(. daDVDList.SelectCommand = New SqlCommand(. daDVDList.SelectCommand.Connection = "ListDVDTitles" daDVDList.SelectCommand.CommandType = CommandType.StoredProcedure daDVDList.Fill(dsVids, "Titles". D. Dim daDVDList as New SqlDataAdapter(. daDVDList.SelectCommand = New SqlCommand(. daDVDList.SelectCommand.CommandText = "ListDVDTitles" daDVDList.SelectCommand.CommandType = CommandType.StoredProcedure daDVDList.Fill(dsVids, "Titles". Answer:- A 42. You are creating a Web service that will include a Web method. You want the method to return its data to the caller as it is created and put into a serial stream, rather than waiting for all of the data to be prepared before returning it. Which of the following WebMethod attributes should you set to enable this 43. The XSLT processor copies the elements of the stylesheet until it finds a command in the format: A. SELECT ... FROM ... WHERE. B. {item, action}. C. {for-each select}. D. none. Answer:- B 44. What standard, protocol or language was generalized to become a standard protocol for sending messages of any type, using any protocol? A. SOAP B. SGML C. SQL D. ADO Answer: A 45. Which of the following statements is not true about XML Schemas: A. They are used to define the content and structure of data. B. They define a set of symbols and the relationships of those symbols. C. They are themselves XML documents. D. They have their own syntax. Answer:- D 46. The most popular way to materialize XML documents is to use: A. DTD. B. XSLT. C. HTML. D. SOAP. Answer:- B 47. With XML: A. views are not limited to one multi-valued path only. B. documents can automatically be generated from database data only. C. database data can automatically be extracted from XML documents only. D. With XML, all of the above are true. Answer:- D 48. To eliminate definition duplication, XML Schemas define: A. an intersection table. B. global elements. C. a normalized definition table. D. None of the above is correct. Answer:- B 48. What is not true about SOAP? A. SOAP originally meant Simple Object Access Protocol. B. SOAP was defined as an XML-based standard for providing remote procedure calls over the Internet. C. SOAP now is just a name, not an acronym D. SOAP was an early form of XML. Answer:- D 49. XML Schemas consist of: A. properties and methods. B. elements and attributes. C. structure and data. D. tables and relationships. Answer:- B 50. The expression FOR XML RAW tells SQL Server to: A. place the values of the columns as attributes in the resulting XML document. B. place the values of the columns into elements rather than attributes. C. place some columns into elements and others into attributes. D. None of the above is correct. Answer:- A 51. ADO.NET provides the ability to create and process in-memory databases called: A. views. B. relations. C. tables. D. datasets. Answer:- D 52. An XML component that defines the structure of a document is known as an A. DOCTYPE. B. DTD. C. #PCDATA. D. HTML Stylesheet. Answer:- B 53. HTML is an application of a more robust document markup language called: A. XHTML. B. XML. C. SGML. D. None of the above is correct. Answer:- C 54. XSLT processors evaluate each statement in the context of the match that has been made. That is, XSLT processors are: A. context oriented. B. procedural oriented. C. object oriented. D. relational oriented. Answer:- A 55. The DTD begins with the word: A. #PCDATA. B. XML. C. DOCTYPE. D. HTTPS. Answer:- C 56. What is not true about XML? A. Web page display is the most important application of XML. B. With XML, there is a clear separation between document structure, content and materialization. C. XML is more powerful than HTML. D. XML documents have two sections. Answer:- A 57. What is not true about XSLT? A. XSLT is a declarative transformation language. B. XSLT uses a set of rules that govern how a document is to be materialized is created. C. XSLT uses a set of procedures that specify how a document is to be programmed. D. XSLT is used to transform the input document into another document. Answer:- C 58. If the XML data instance conforms to the DTD, the document is said to be: A. type-invalid. B. type-valid. C. not-type-valid. D. an HTML document. Answer:- B 59. The document that is used by XSLT to indicate how to transform the elements of the XML document to another format is an A. HTML page. B. DOCTYPE procedure. C. stylesheet. D. stored procedure. Answer:- C 60. If an XML document does not have a DTD, then by definition it is: A. not-type-valid. B. type-valid. C. an HTML document. D. None of the above is correct. Answer:- A 61. Using Which Datasource Control Can Access Oracle DataBase ? a. xmlDatasource b. sqlDataSource c. ObjectDatasource d. All of the Aboove Answer:- C 62. How to get the current user Name ? a. Identity.UserName b. CurrentUser.Identity.Name c. User.Identity.Name d. Based on the Session Variable Name Answer:- C 63.Which is Incorrect ? a. Session objecy is Private to user b. Application Object is global c. Caching can be global or Private d. Application object vaues are accessed accross the application Answer:- C 64. Which is Correct ? a. sql cache invalidation is a new feature in asp.net2.0 b. sql cache invalidation is an existing feature with enhancement c. sql cache invalidation is an existing feature d. sql cache invalidation is a bug in prior version Answer:- D 65.Which is correct ? a. DataTable is member of a DataSet b. DataTable is member of a System.Data c. DataTable is member of a System.Data.SqlClient d. Dataadapter Answer:- B 66.Which is correct ? a. System.String and System.Text are same. System.text is synonym of system.string b. System.String is data type System.Text is Class c. System.String is data type System.Text is namespace d. Non of the abve is right Answer:- D ADO.Net Questions and Answers Pdf Download Read the full article

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