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WML Interview Questions And Answers

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WSDL stands for Web Service Discovery Language. It is an markup language which is used to describe web services.

We use WSDL port to describes the interfaces (legal operations) those are exposed by a web service.

 DISCO is stands for Discovery.It is a web service discovery tool which is used to discover the url of Web services of XML addessed on web server and sae document on local disk according to each XML service.

 Where as UDDI is stands for Universal Description ,Discovery and Integration.It is plateform independent framework.Using UDDI web service available to the consumer by describing the web service using a WDSL document and then registering the Web service into UDDI Directory. The UDDI Directory contains pointers to the Web service and the WDSL document for the Web service. After this is done the Client Applications can discover the Web service using the UDDI Directory.

The UDDI specification calls for three elements as given below:

1.White Pages: This is used to provide business contact information
2.Yellow Pages: This is used to organize Web services in these categories like usage billing service, authorization service etc.
3.Green Pages: This is used to provide detailed technical information of pages about individual services.

 

 We can validate our wml by using Microsoft XML parser(Which is used to create wmll validator.

 Now. to prform validation we paste our wml into the text area and validate them with submit validate button.

Example:
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Card 1">
<p>Hello User!</p>
</card>
</wml>
 
 

 Use of variables in WML is that when client want to switch over card to card in a deck,than client should have to store the data into variables.
 We can use variables in WML sing two ways.
1.Can set a variable using setvar Command: Suppose that if client want to execute go,prev and refresh type task than they can use setvar command and create a variable with a specific value.

Example:
<setvar name="x" value="9999"/>

2.Can set a variable with an input element: If we want to set variable with an input,select, option etc input element.

Example:

<card id="card1">
<select name="enotes">
<option value="PHP">PHP Tutorial</option>
<option value="CSS">CSS Tutorial</option>
<option value="WAP">WAP Tutorial</option>

</select>
</card>

 
We can use this created variable enotes into the card2.

<card id="card2">
<p>You have selected: $(enotes)</p>
</card>
 
In the above example we create an variable enotes in card1 and passed the selected enotes into card2 by variable enotes.

  We can set Timer in WML.We express time unit of timer as 1/10 of a second.

 Below I have given you which will display text on WML page for 6 seconds.

Example:

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card ontimer="timetest.wml"><timer value="60"/>
<p>Write some text here</p>
</card>
</wml>


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WML Objective Questions And Answers

WML Objective Questions And Answers

WML Interview Questions And Answers

WML Subjective Questions And Answers


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