Technology Questions

Q:

What are the different modes of operations used in services for Android?

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 Context.bindService() 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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Q:

What is the impact of declaring a method as final?

Answer

A method declared as final can't be overridden. A sub-class can't have the same method signature with a different implementation.

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Subject: Java

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Q:

What is the procedure to configure the web browser to accept or reject cookies?

Answer

- The web browser visits a website using the HTTP and then it keeps the track of the identity of the user visiting the web page.


- The cookies of HTTP get stored with the personal information of the user and it doesn’t accept the information. 


- Users accept the cookies as by rejecting all the cookies will load the web page in longer time and it will not be desired by the users. 


- Even if the cookie is being rejected a session cookie is being kept for use as it is the provision given to the web browser to use it. 


- The cookies gets stored temporary basis depending on the user of accepting or rejecting it and it basically saves the session so that the duration of the page load can be reduced.

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Subject: Web Technology

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Q:

What are the security measures that are taken to make Android secure?

Answer

Android uses many security measures to keep them away from the hackers. They have designed by making changes to the devices or installing a software service on the mobile. Android application uses sandbox that is very popular and allow limited access to the information that is very private and sensitive for the user. It allows the permissions to be set for the use of the information. The security measures that are provided by android is the use of the encryption of the messages that allow user to remain without worry about there phone security. They also consists of user terms and agreements that also taken care of. Most of the time android doesn't allow other applications to run on their system but it can be done by using different resources that are available on-line. As, android is open source it is not fully secure but lots of security issues are being solved for make it more popular and bug free.

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Q:

How to Accessing Elements using javascript?

Answer

The elements of JavaScript are accessed by their names. By default the browser is accessed by the element ‘windows’ and the page by ‘document’. The corresponding element has user defined names for forms and its elements. For example


var pwd = windows.document.frmLogin.password.value;


assigns the value of the password field of the form fromLogin in the current document, where password is the name of the element and frmLogin is the name of the form. Like wise any form element is accessed.

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Subject: Web Technology

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Q:

What is an ABAP/4 Query?

Answer

ABAP/4 Query is a powerful tool to generate simple reports without any coding. ABAP/4 Query can generate the following 3 simple reports: Basic List: It is the simple reports. Statistics: Reports with statistical functions like Average, Percentages. Ranked Lists: For analytical reports. - For creating a ABAP/4 Query, programmer has to create user group and a functional group. Functional group can be created using with or without logical database table. Finally, assign user group to functional group. Finally, create a query on the functional group generated.

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Subject: ABAP

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Q:

What documents should be delivered by a Business Analyst should deliver?

Answer

The documents that a business analyst should deliver are functional specification documents, technical specification documents, Requirements traceability, BRD (business requirements document), Use case diagrams and Business flow documents.

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Q:

How do you load data from XML file to a ORACLE table?

Answer

You need to first create a table in oracle that matches with the fields of the XML data.


So to get the XMl into the table, you can create a generic procedure that moves an XML document into a table by converting the elements to Oracle Canonical format.


Oracle Canonical format is as follows:


<ROWSET>


   <ROW>  


     <column_name_1 />


     .


     .


     </ROW>


     <ROW>


         <column_name_1 />


         .


         .


      </ROW> 


        .


        .


</ROWSET>        


ROW is used for the table names


ROWSET is used for the XML document


You can get the XML into the canonical form using XSL:


<?xml version="1.0"?>


<xsl:stylesheet 


             xmlns:xsl="https://www.w3.org/1999/XSL/Transform"                   


             version="1.0">


     <xsl:template match="/">


          <ROWSET>


               <ROW>


                         <Attribute_name>                      


                             <xsl:value-of select="Table_name/Attribute_name" />


                         </Attribute_name>


                < /ROW>


          </ROWSET>


     </xsl:template>


</xsl:stylesheet>


To transform the XML document into the canonical form, you can write a procedure. Make sure you include the line below in your procedure code:


v_rows := DBMS_XMLStore.insertXML(


                v_context,    


                XMLType.transform(p_xml_in, p_xsl_in));


The only remaining step is calling your procedure: 


DECLARE


   v_xml XMLType := XMLType( YOUR XML Document );


   v_xsl XMLType := XMLType( YOUR XSL Document );


BEGIN 


   procedure_name(v_xml, v_xsl, 'table_name');


END;

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