Happy to Help: Interview Questions

ASP.Net Interview Questions - II

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26. Can we have multiple web config files for an asp.net application?</span></b><span style="background-color: white;"><br />
Yes.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">27. What is the
difference between web config and machine config?</span></b><span style="background-color: white;"><br />
Web config file is specific to a web application where as machine config is
specific to a machine or server. There can be multiple web config files into an
application where as we can have only one machine config file on a server.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">28.  Explain role
based security ?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">  </span></b><span style="background-color: white;">Role Based Security used to
implement security based on roles assigned to user groups in the organization.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Then we can allow or
deny users based on their role in the organization. Windows defines several
built-in groups, including Administrators, Users, and Guests.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><br /><authorization>< authorization ></authorization></span><br />
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;"></table>
<span style="font-family: Verdana, sans-serif;">    < allow roles="Domain_Name\Administrators" / >  </span><br />
<div>
<span style="font-family: Verdana, sans-serif;">    < !-- Allow Administrators in domain. -- ></span><br />
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;"></table>
<span style="font-family: Verdana, sans-serif;">    < deny users="*"  / >           </span></div>
<div>
<span style="font-family: Verdana, sans-serif;">  < !-- Deny anyone else. -- ></span></div>
<div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;"></table>
<span style="font-family: Verdana, sans-serif;"> < /authorization ></span><br />
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<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;"><tbody>
<tr><td style="padding: 0cm 0cm 0cm 0cm;"><span style="font-family: Verdana, sans-serif;"><br /></span></td><td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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</td></tr>
</tbody></table>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">29. What is Cross Page
Posting?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">When we click submit
button on a web page, the page post the data to the same page. The technique in
which we post the data to different pages is called Cross Page posting. This
can be achieved by setting POSTBACKURL property of  the button that causes
the postback. Findcontrol method of PreviousPage can be used to get the posted
values on the page to which the page has been posted.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">30. How can we apply
Themes to an asp.net application?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">We can specify the
theme in web.config file. Below is the code example to apply theme:</span><o:p></o:p></span></div>
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<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
</div>
</td><td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
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<span style="font-family: Verdana, sans-serif;"><configuration></configuration></span></div>
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<span style="font-family: Verdana, sans-serif;"><system .web=""></system></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="font-family: Verdana, sans-serif;"><pages theme="Windows7"></pages></span></div>
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<span style="font-family: Verdana, sans-serif;"></span></div>
</td></tr>
</tbody></table>
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<span style="font-family: Verdana, sans-serif;"><configuration> </span><br />
<span style="font-family: Verdana, sans-serif;"><system.web> </span><br />
<span style="font-family: Verdana, sans-serif;"><pages theme="Windows7" /> </span><br />
<span style="font-family: Verdana, sans-serif;"></system.web> </span><br />
<span style="font-family: Verdana, sans-serif;"></configuration></span></div>
<span style="font-family: Verdana, sans-serif;"></span><br />
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">31: What is
RedirectPermanent in ASP.Net?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">  </span></b><span style="background-color: white;">RedirectPermanent Performs a
permanent redirection from the requested URL to the specified URL. Once the
redirection is done, it also returns 301 Moved Permanently responses.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">32: What is MVC?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">MVC is a framework used
to create web applications. The web application base builds on 
Model-View-Controller pattern which separates the application logic from UI,
and the input and events from the user will be controlled by the Controller.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">33. Explain the
working of passport authentication.</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">First of all it checks
passport authentication cookie. If the cookie is not available then the
application redirects the user to Passport Sign on page. Passport service
authenticates the user details on sign on page and if valid then stores the
authenticated cookie on client machine and then redirect the user to requested
page</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">34. What are the
advantages of Passport authentication?</span></b><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">All the websites can
be accessed using single login credentials. So no need to remember login
credentials for each web site.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Users can maintain
his/ her information in a single location.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">35. What are the
asp.net Security Controls?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <asp:login>:
Provides a standard login capability that allows the users to enter their
credentials</asp:login></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <asp:loginname>:
Allows you to display the name of the logged-in user</asp:loginname></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <asp:loginstatus>:
Displays whether the user is authenticated or not</asp:loginstatus></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <asp:loginview>:
Provides various login views depending on the selected template</asp:loginview></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <asp:passwordrecovery>:
 email the users their lost password</asp:passwordrecovery></span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">36: How do you
register JavaScript for webcontrols ?</span></b><span style="background-color: white;"><br />
We can register javascript for controls using <control -name="">Attribtues.Add(scriptname,scripttext) method.</control></span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">37. In which
event are the controls fully loaded?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Page load event.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">38: what is
boxing and unboxing?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Boxing is assigning a
value type to reference type variable.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Unboxing is reverse of
boxing ie. Assigning reference type variable to value type variable.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">39. Differentiate
strong typing and weak typing</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">In strong typing, the
data types of variable are checked at compile time. On the other hand, in case
of weak typing the variable data types are checked at runtime. In case of
strong typing, there is no chance of compilation error. Scripts use weak typing
and hence issues arises at runtime.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">40. How we can force
all the validation controls to run?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">The <i>Page.Validate()</i> method
is used to force all the validation controls to run and to perform validation.</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">41. List all templates
of the Repeater control.</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>ItemTemplate</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>AlternatingltemTemplate</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>SeparatorTemplate</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>HeaderTemplate</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>FooterTemplate</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><i><br /></i></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">42.</span></b><span style="background-color: white;"> <b><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">List the major built-in objects
in ASP.NET? </span></b></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Application</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Request</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Response</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Server</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Session</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Context</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">·         <i>Trace</i></span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-indent: 0px; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><i><br /></i></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">43. What is the
appSettings Section in the <i>web.config</i> file?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">The <i>appSettings</i> block
in web config file sets the user-defined values for the whole application.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">For example, in the
following code snippet, the specified <i>ConnectionString</i> section
is used throughout the project for database connection:</span></span></div>
<br />
<o:p></o:p>

<br />
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><i><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">44.      </span></i></b><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">Which data type does the <i>RangeValidator</i> control
support?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">The data types
supported by the <i>RangeValidator</i> control are Integer, Double,
String, Currency, and Date.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">45. What is the
difference between an <i>HtmlInputCheckBox</i> control and an <i>HtmlInputRadioButton</i> control?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">In <i>HtmlInputCheckBoxcontrol, </i>multiple
item selection is possible whereas in<i> HtmlInputRadioButton </i>controls,
we can select only single item from the group of items.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">46. Which namespaces
are necessary to create a localized application?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><i><span style="background-color: white;">System.Globalization</span></i><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><i><span style="background-color: white;">System.Resources</span></i><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><i><span style="background-color: white;"><br /></span></i></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">47. What are the
different types of cookies in ASP.NET?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">Session Cookie</span></b><span style="background-color: white;"> – Resides on the client
machine for a single session until the user does not log out.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">Persistent Cookie</span></b><span style="background-color: white;"> – Resides on a user’s
machine for a period specified for its expiry, such as 10 days, one month, and
never.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">48. What is the file
extension of web service?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">Web services have file
extension .asmx.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">49. What are the
components of ADO.NET?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">The components of
ADO.Net are Dataset, Data Reader, Data Adaptor, Command, connection.</span><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><b><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;">50. What is the
difference between ExecuteScalar and ExecuteNonQuery?</span></b><o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">ExecuteScalar returns
output value where as ExecuteNonQuery does not return any value. ExecuteScalar
used for fetching a single value and ExecuteNonQuery used to execute Insert and
Update statements.</span><o:p></o:p></span><br />
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;"><br /></span></span>
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white;">For more questions <a href="http://counsellingbyabhi.blogspot.in/2013/02/ASPDotNetInterviewQuestions.html">click here</a></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="font-family: Verdana, sans-serif;"><span style="background-color: white; border: 1pt none windowtext; padding: 0cm;"><br /></span></span></div>
</div>

ASP.Net Interview Questions - II

26. Can we have multiple web config files for an asp.net application? Yes. 27. What is the difference between web config and machin...

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ASP.Net Interview Questions - I

<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">1. What is ASP.Net?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">It is a framework developed by
Microsoft on which we can develop new generation web sites using web
forms(aspx), MVC, HTML, Javascript, CSS etc. Its successor of Microsoft Active
Server Pages(ASP). Currently there is ASP.NET 4.0, which is used to develop web
sites. There are various page extensions provided by Microsoft that are being
used for web site development. Eg: aspx, asmx, ascx, ashx, cs, vb, html, xml
etc.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">2. What’s the use of
Response.Output.Write()?<br />
</span></b> We can write formatted output  using Response.Output.Write().<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">3. In which event of page cycle is the
ViewState available?<br />
</span></b>   After the Init() and before the Page_Load().<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">4. What is the difference between
Server.Transfer and Response.Redirect?  </span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">In <i>Server.Transfer</i> page processing
transfers from one page to the other page without making a round-trip
back to the client’s browser.  This provides a faster response with a
little less overhead on the server.  The clients url
history list or current url Server does not update in case of
Server.Transfer.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Response.Redirect is used to redirect
the user’s browser to another page or site.  It performs trip back to
the client where the client’s browser is redirected to the new page.  The
user’s browser history list is updated to reflect the new address.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">5. From which base class all Web Forms
are inherited?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Page class.<b><span style="border: 1pt none windowtext; padding: 0cm;"> <o:p></o:p></span></b></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">6. What are the different validators in
ASP.NET?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; text-indent: -18pt; vertical-align: baseline;">
</div>
<span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;"></span><br />
<ol style="text-align: left;"><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Required field
Validator</span><span style="text-indent: -18pt;"> </span></li>
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Range  Validator</span></li>
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Compare Validator</span></li>
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Custom Validator</span></li>
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Regular expression
Validator</span></li>
<li><span style="text-indent: -18pt;">   </span><span style="text-indent: -18pt;">Summary Validator</span></li>
</span></ol>
<span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">
</span><br />
<div>
<br />
<div class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; text-indent: -18pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">7. Which validator control you use if
you need to make sure the values in two different controls matched?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Compare Validator control.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">8. What is ViewState?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">ViewState is used to retain the state
of server-side objects between page post backs.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">9. Where the viewstate is stored after
the page postback?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">ViewState is stored in a hidden field
on the page at client side.  ViewState is transported to the client and
back to the server, and is not stored on the server or any other external
source.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">10. How long the items in ViewState
exists?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">They exist for the life of the current
page.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">11. What are the different Session
state management options available in ASP.NET?</span></b></span></span></div>
<div class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; text-indent: -18pt; vertical-align: baseline;">
</div>
<ol style="text-align: left;">
<li><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">   </span><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">In-Process</span></li>
<li><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">  </span><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">Out-of-Process.</span></li>
</ol>
<br />
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">In-Process</span></b> stores the
session in memory on the web server.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">Out-of-Process</span></b> Session state
management stores data in an external server.  The external server may be
either a SQL Server or a State Server.  All objects stored in session are
required to be serializable for Out-of-Process state management.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">12. How you can add an event handler?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;"> </span></b>Using<b><span style="border: 1pt none windowtext; padding: 0cm;"> </span></b>the Attributes
property of server side control.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">e.g.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
</td><td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">btnSubmit.Attributes.Add("onMouseOver","JavascriptCode();")</span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
</td>
 </tr>
</tbody></table>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">13. What is caching?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Caching is a technique used to increase
performance by keeping frequently accessed data or files in memory. The
request for a cached file/data will be accessed from cache instead of actual
location of that file.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">14. What are the different types of
caching?</span></b><br />
ASP.NET has 3 kinds of caching :<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; text-indent: -18pt; vertical-align: baseline;">
</div>
<span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">   </span><br />
<div>
<ol style="text-align: left;">
<li><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">Output Caching,</span></li>
<li><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">Fragment Caching,</span></li>
<li><span style="background-color: white; font-family: Verdana, sans-serif; text-indent: -18pt;">Data Caching.</span></li>
</ol>
<br />
<div class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; text-indent: -18pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">15. Which type if caching will be used
if we want to cache the portion of a page instead of whole page?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;"><br /></span></b></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">Fragment Caching:</span></b> It caches the
portion of the page generated by the request. For that, we can create user
controls with the below code:</span></span></div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
</td>
  <td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><%@ OutputCache
  Duration="120" VaryByParam="CategoryID;SelectedID"%></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
</td>
 </tr>
</tbody></table>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">16. List the events in page life cycle.</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-align: left; vertical-align: baseline;">
<span style="background-color: white; font-family: Verdana, sans-serif;">1) Page_PreInit</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">2) Page_Init</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">3) Page_InitComplete</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">4) Page_PreLoad</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">5) Page_Load</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">6) Page_LoadComplete</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">7) Page_PreRender</span><br />
<span style="background-color: white; font-family: Verdana, sans-serif;">8)Render</span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; text-align: left; vertical-align: baseline;">
<span style="background-color: white; font-family: Verdana, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">17.<b><span style="border: 1pt none windowtext; padding: 0cm;"> Can we have a web application
running without web.Config file?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">  Yes</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;"><br /></span></b></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">18. Is it possible to create web
application with both webforms and mvc?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Yes. We have to include below mvc
assembly references in the web forms application to create hybrid application.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
</td><td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">System.Web.Mvc</span></span><span style="background-color: white; font-family: Verdana, sans-serif;"> </span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white; font-family: Verdana, sans-serif;">System.Web.Razor</span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white; font-family: Verdana, sans-serif;"> </span><span style="background-color: white; font-family: Verdana, sans-serif;">System.ComponentModel.DataAnnotation</span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white; font-family: Verdana, sans-serif;"><br /></span></div>
</td></tr>
</tbody></table>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">19</span></b>. <b><span style="border: 1pt none windowtext; padding: 0cm;">Can we add code files of different
languages in App_Code folder?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;"> </span></b> No. The code
files must be in same language to be kept in App_code folder.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">20. What is Protected Configuration?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">It is a feature used to secure
connection string information.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">21. Write code to send e-mail from an
ASP.NET application?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">1<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">2<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">3<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">4<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">5<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">6<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">7<o:p></o:p></span></span></div>
</td>
  <td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        MailMessage
  mailMess = new MailMessage ();<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        mailMess.From
  = "abc@gmail.com";<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        mailMess.To
  = "xyz@gmail.com";<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        mailMess.Subject
  = "Test email";<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">       
  mailMess.Body = "Hi This is a test mail.";<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        SmtpMail.SmtpServer
  = "localhost";<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">        SmtpMail.Send
  (mailMess);<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
</td>
 </tr>
</tbody></table>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">MailMessage and SmtpMail are classes
defined System.Web.Mail namespace.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;"> 22. How can we prevent browser
from caching an ASPX page?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">  </span></b>We can SetNoStore on
HttpCachePolicy object exposed by the Response object’s Cache property:</span></span></div>
<table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; mso-padding-alt: 0cm 0cm 0cm 0cm; mso-yfti-tbllook: 1184; width: 1440px;">
 <tbody>
<tr>
  <td style="padding: 0cm 0cm 0cm 0cm;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<br /></div>
</td><td style="padding: 0cm 0cm 0cm 0cm; width: 1080.0pt;" width="1440"><div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">Response.Cache.SetNoStore ();</span></span><span style="background-color: white; font-family: Verdana, sans-serif;"> </span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="background-color: white; font-family: Verdana, sans-serif;">Response.Write
  (DateTime.Now.ToLongTimeString ());</span></div>
</td>
 </tr>
</tbody></table>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">23. What is the good practice to
implement validations in aspx page?</span></b><br />
Client-side validation is the best way to validate data of a web page. It
reduces the network traffic and saves server resources.<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">24. What are the event handlers that we
can have in Global.asax file?</span></b><o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br />
<b><span style="border: 1pt none windowtext; padding: 0cm;">Application
Events:</span></b> Application_Start , Application_End,
Application_AcquireRequestState, Application_AuthenticateRequest,
Application_AuthorizeRequest, Application_BeginRequest,
Application_Disposed,  Application_EndRequest, Application_Error,
Application_PostRequestHandlerExecute, Application_PreRequestHandlerExecute,<br />
Application_PreSendRequestContent, Application_PreSendRequestHeaders,
Application_ReleaseRequestState, Application_ResolveRequestCache,
Application_UpdateRequestCache<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">Session Events:</span></b> Session_Start,Session_End<o:p></o:p></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><b><span style="border: 1pt none windowtext; padding: 0cm;">25. Which protocol is used to call a
Web service?</span></b><br />
HTTP Protocol<o:p></o:p></span></span><br />
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span>
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;">For more questions <a href="http://counsellingbyabhi.blogspot.com/2013/02/ASpDotInterviewQuestions2.html">click here</a></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<span style="background-color: white;"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt; vertical-align: baseline;">
<br /></div>
</div>
</div>
</div>

ASP.Net Interview Questions - I

1. What is ASP.Net? It is a framework developed by Microsoft on which we can develop new generation web sites using web forms(aspx), MV...

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