Elance ASP.NET Test Answers 2015



Which file is used to configure an asp.net website?
index.html
asp.settings
web.config
power.cs
settings.ini


The application event that is fired at the beginning of each request to the server is called:
Application_OnStart
Application_Init
Application_Start
Application_BeginRequest


ASP server scripts are surrounded by delimiters, which?
<script>...</script>
<&>...</&>
<%...%>
<%>...</%>


What is the different between int.Parse() and Convert.ToInt32()
int.Parse take only string() but Convert.ToInt32() take [object]
int.Parse take [object] but Convert.ToInt32() take only string()


Where is the ViewState information stored?
in cookies
query string
in session variables
in database
in the HTML hidden fields.


Which of the following ASP.NET directories stores class files (.cs) by default?
App_Data
App_GlobalResources
Bin
App_Code


Which of the following denote the web control associated with Table control function of ASP.NET?
ListBox
TableRow
What is ASP.Net
Server Side Technology
Programming Language


ASP.NET separates the HTML output from program logic using a feature named as
Code-front
None of the above
Code-behind
Exception


How to identify a postback
ViewState
MachineState
use Session
Postback
use IsPostback


Can you write serverside code inside aspx page
Yes use the <% %>
No cant it should inside .cs file


What is used to validate complex string patterns? i.e email
Regular Expressions
Irregular expressions
Extended Expressions
Basic Expressions


When an .aspx page is requested from the web server, the out put will be rendered to browser in following format.
WML
HTML
XML
JSP


The Asp.net server control, which provides an alternative way of displaying text on web page, is
< asp:listitem >
< asp:button >
< asp:label >


The property of the Page class used to determine if the page has posted back is:
IsPostBack
PostBack
HasPostedBack


Can you set which type of comparison you want to perform by the CompareValidator control?
Yes
No


Which attribute must be set on the validator control for the validator to work?
validate
controltobind
validatecontrol
ControlToValidate


Give One word: Common type system is built into which of the following
CLR
RCT


Which of the following is a property all the ASP.NET controls have?
runat
name
bgcolor
text


The logical and physical boundary created around every .NET application is known as:
Application Domain
Process Domain
Thread Space
Process Space


Which is the parent class of Web server control?
System.Web.Ul.Control
System.Web.Type
System.Web.Ul.BaseControl
System.Web.Ul.Type


What is the syntax to inherit from a class in C#?
A class that cannot be instantiated
The signature of the virtual method must remain the same
Place a colon and then the name of the base class.


How can I show the entire validation error message in a message box on the client side?
Not supported
In the ValidationSummary control set property called “ShowMessageBox” to true.
Write custom java script code and set ScriptEnabled to "true"


What is the difference in Application State and View State?
Application State is stored on the server while ViewState is stored on the client machine.
Application State is stored on the client machine while ViewState is stored on the server.
None of the above.


Which method of the ServiceController class will allow you to send a command to the service?
Pause()
Start()
ExecuteCommand()
Stop()


Which of the following file types is associted with ASP.NET User controls?
.aspx
.asmx
.ascx
.asax


What must be done before you can consume a web service?
Build a proxy library by using the Disc.exe utility.
Build a proxy library by using the csc.exe utility.
Build a proxy library by using the TblImp.exe utility.
Build a proxy library by using the wsdl.exe utility


What is the extension of a web user control file?
.Aspx
.Ascx
.Asmx


We can manage states in asp.net application using
Application Objects
Session Objects
Viewstate
(all of these)


Page 1 has this link: <a href="page2.asp?color=green">Go</a> How can page2.asp get the "color" parameter?
Get("color")
Response.Parameter("color")
Response.QueryString("color")
Request.QueryString("color")


Which HTML control property should be set to access control from code behind?
Runat = "Server"
ID = "TextBox2"
ClientID = "TextBox1"
RunatServer = "True"


Which of the following controls is used to validate that two fields are equal?
CompareValidator
Required Field Validator
Equals() method
RegularExpressionValidator


In Asp.Net Server.MapPath(".") points to which location
points to C:\\My Documents\Microsoft Visual Studio folder
points to the location where your project stored
it will not point to any location
there is no such function in asp.net


The number of forms that can be added to a aspx page is.
2
7
3
4
1


Where are private assemblies stored in ASP.NET?
application root directory
windows directory
root directory of bootable drive
application / bin directory


Which of the following is a navigation control:
Pager
Repeater
None of these
Menu


What is default timeout of session in asp.net?
10ns
20 ns
1 hr
20 min
10min


The feature in ASP.NET 2.0 that is used to fire a normal postback to a different page in the application is called
Cross Page Posting
None of the above
Code-front
Theme


What’s the difference between localization and globalization?
Localization is local issues while globalization is global issues
They’re both the same
Different namespaces
Localization is from the client perspective while globalization is from the server perspective


Which version of ASP .NET MVC has built-in support for mobile targeting?
MVC 2
MVC 4
MVC 3
MVC 1


Which of the following is not a .NET compatible language?
Java
Managed C++
COBOL.NET, Perl.NET
C#, J#
VB.NET


What is the name of the property to get client side id for a control at run time?
Name
ClientID
ClientSideID
ID


How do you enable impersonation in the web.config file?
<setImpersonate = "true" />
<identity impersonate = "true" />
<impersonate = "true" />
<identity setImpersonate = "true" />


In ASP.Net, session is maintained using the methods:
(all of these)
Only SQL Server
Only In-Process storage
Only Session State Service


In which event are the controls fully loaded?
Page.Load()
Page.Init()
Page.OnLoad()
Page.PreInit()


Why should you close all database objects and set them to NULL before leaving the method where the objects were created?
To ensure that the connection to the database is closed as soon as possible
To ensure that the object’s destructors are called.
To ensure that the objects can be reused.


ASP.NET stores membership, role management, and profile information in which database?
aspdotnetdb
aspdotnetdatabaase
aspnetdb
netdb


The first method that is executed in the Page life cycle in ASP.NET is:
Page.Load
Init
PreInit
PreLoad


Which method do you use to kill explicitly a users session?
Session.Flush() method
Session.Kill(true) method
Session.Kill() method
Session.Abandon() method


Can Web API be hosted in its own process without IIS?
Yes
No


.NET remote server object must implement?
ISingleCall
IMarshalByRef
ISerializable
IUnknown
IMarshalByValue


How do you get info from a form that is submitted using the post method?
Response.Write
Response.WriteLine
Request.Form
Request.QueryString


To load an assembly dynamically, the method used is:
Assembly.Memory.Load()
Assembly.Dynamic.Load()
Assembly.Load()
Assembly.LoadDynamic()


What is the method name to make upper case to string value?
toUpperCase()
Toupper()
ToUpperString()
ToUpperCase()
ToUpper()


How ASP.Net Different from classic ASP?
Scripting is separated from the HTML, Code is compiled as a DLL, the DLLs can be executed on server
Code is separated from the HTML and interpreted Code is interpreted separately
Scripting is separated from the HTML, Code is interpreted seperately


How do you disable client side script in validators?
Set EnableClientScript property to false.
Set EnableScript property to false
Delete the EnableClientScript property in the markup code
Set DisableClientScript property to true.


Which of the following is/are applicable while using Server Socket Level communications?
A certificate must be installed on the server.
All of these choices
The certificate must match the web address to prevent a browser warning or error.
The certificate must be issued by an authority recognized by the client computer to prevent a browser warning or error.


What is the different between int.Parse() and Convert.ToInt32()
int.Parse() take any object but Convert.ToInt32() take only string()
int.Parse() take only string() but Convert.ToInt32() take any object
No different between its


What is/are the methods to author pages in ASP.NET?
Outline Code
By-Directional Code
In-Line Code
Both In-Line Code and Code Behind
Code Behind


What class does the ASP.NET web form class inherit from by default?
System.Web. UI.Page
System.Web.Form
System.Web. UI.Form
System. Web. GUI.Page


Can MVC, Web Forms and Web API be mixed in the same project?
Only MVC and Web Forms, not Web API
No
Yes
Only in .NET 4.5


By default, ASP.NET store SessionIDs in
Cookies
Cache
Global variable
Database


What is the default scripting language in ASP?
JavaScript
VBScript
PERL


Can ASP.NET run on a linux server?
No
Linux doesn’t have server variants
Yes, via the Mono project
Microsoft is planning to change ASP.NET to run on linux in the future


Which formats can Web API work with?
XML
All of these
ATOM Pub
xVx


Contents of assembly file can be investigated using
ILDASM.inc
ILDASM.dll
ILDASM.aspx
ILDASM.exe


Which of the following statements best describes setting up an async page in .NET 4.5?
async=true on page directive, RegisterAsyncTask in page load and async method
async=true on page directive
async method
TaskFactory.StartNew(method1)


How can an MVC View be protected from CSRF?
@Html.AntiForgeryToken() in View
Web.Config app setting AntiForgeryToken true
not possible
@Html.AntiForgeryToken() in View and ValidateAntiForgeryToken attribute on controller action


How do you make a controller action async?
return an async Task from controller action while awaiting within the method
Register async controller action in Global.asax
return an async Task from controller action
return an async Task<ActionResult> from controller action while awaiting within the method


In LINQ what is the difference in .Ancestor and .Parent?
Parent is the immediate node below, Ancestors is all nodes above and below.
Parent is the immediate node a level above, Ancestors is all nodes above and below.
Parent is the immediate node a level above, Ancestors is all nodes all levels above.
None of the above


Can you run a web application without the web.config file?
No
Yes
Runtime error
It will not compile if there is no web.config file


What method(s) must be used with the Application object to ensure that only one process accesses a variable at a time?
ThreadLock
Lock() and UnLock()
Synchronize()


"<%=" is the same as:
<%
<&
Response.Write
Document.Write


The property used to access user's locale information is:
System.Web.UI.Page.User
System.Web.UI.Page.Locale
System.Web.Locale
System.Web.UI.Page.Culture


which of the following is not ASP.NET directives?
web
page
import
register


Which of the following contains one or more variables that are accessed through sequential indices?
Arrays
Nullable Types
Delegates
Indexers


You are developing ASP.NET templated server control. You need to ensure that a new ID namespace is created within the page control hierarchy when the control is added to the page. Which interface should you implement on the control?
INamingContainer
IExtenderCtonrol
IDataItemContainer
IDataKeysControl


True or False: Without Web.config file application will not compile or Run.
True
False


When would WCF be a better solution than Web API?
Need for XML
Need for metadata
Need for SOAP
Need for REST


_______ is a special subfolder within the windows folder that stores the shared .NET component?
Root
/bin
GAC


Where is the default Session data stored in ASP.Net?
InProcess
Session Object
StateServer


Which two new properties are added in ASP.NET 4.0 Page class?
Culture and Locale
MetaKeyword and MetaDescription
Culture and Description
Keyword and Description


In the following example, is viewstate being set? (Test.aspx - viewstate enabled) <asp:Label id=”LabelTest” runat=”server” /> (Test.aspx.cs) protected override void OnLoad(EventArgs args) { this.LabelTest.Text = “changed”; base.OnLoad(e); }
Yes
No
Only in .NET 4+
Only if LabelTest.Text is changed in following events before PreRender


In which of the following SessionState Modes the Session_End event fires?
StateServer
None
SQL Server
Inproc


How can you disable client-side validation in ASP.NET?
By setting ValidateScripting to false
By setting EnableScripting to false
By setting ValidateClientScript to false
by setting CauseValidation to false
By setting the EnableClientScript property to false


What is the role of the Web API Media Type Formatter?
Reads the message body and serializes the response
Reads from the URI path and querystring
Reads the message body only
A custom parameter binding that can read any part of the HTTP request


What’s the difference between Response.Write() andResponse.Output.Write()?
Response.Output.Write() allows you to stream output
Response.Output.Write() allows you to flush output
Response.Output.Write() allows you to write formatted output
Response.Output.Write() allows you to buffer output


Which of the following denotes the web control associated with Table control function of ASP.NET?
DataList
TableRow (ANS)
ListBox


The low level Request and Response API to service incoming Http requests in ASP.NET is called:
HttpResponse
HttpRequest
HttpHandler
HttpAPI


The property used to support Cross Page Scripting in ASP.NET is:
AutoPostBack
AutoPostBackUrl
PostBackUrl


How do you sign out from forms authentication?
Using FormsAuthentication.Logout() method
Using FormsAuthentication.Logoff() method
Using FormsAuthentication.Signout() method


The threading model used in ASP.NET is:
STA
Single Threaded
Not supported
MTA


Which method has been introduced in ASP.NET 4.0 to redirect a page permanently?
Redirect(true) method
RedirectPermanent() method
Page.Redirect(true) method
PermanentRedirect() method


Which property is used to retrieve a username in Windows Authentication?
System.Environment.GetUserName
System.Environment.UserName
System.UserName
System.Environment.User


What is the maximum number of cookies that can be allowed to a web site?
20
more than 30
10
1


Caching in ASP.NET is used to:
Reduce redundant object creation
Reduce database hits
Load pages from memory
Reduce server round trips


What are the three IIS isolation levels?
Base, Custom and Enhanced
Base, Custom and High
Pooled, Non pooled, Not set
Low, Medium and High


To prevent a browser from caching an .aspx page the statement used is:
Response.Cache.SetNoStore ();
Response.NoCache = "true";
Response.Cache = "false";
Response.Cache = "Yes"


I have a property in my code-behind get { return (Custom)Session["Custom"]; } set { Session["Custom"] = value; } and I receive a serialization error What are the possible solutions?
Change sessionstate mode to InProc
Add the Serializable attribute to Custom class
Change the property type to HashSet<Custom> instead of Custom
All of these will work


How can you protect the asp:login object from SQL Injection attacks?
Create a SqlFilter object and pass the inputs through it.
Make sure the connection string used only has read access to the database.
It is protected by default.
Use a regular expression to filter the inputs before login.
Set the SqlFilter property to true.


How can the button click work in the following code: <asp:ScriptManager EnablePartialRendering="true" ID="ScriptManager1" runat="server"></asp:ScriptManager> <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"> <ContentTemplate> <asp:Label ID="Label1" runat="server" /><br /> </ContentTemplate> </asp:UpdatePanel> <asp:Button ID="Button1" runat="server" Text="Update Panel" OnClick="Button1_Click" />
Trigger attribute on Button control
Triggers tag with AsyncPostBackTrigger
TriggerControl attribute on UpdatePanel
Trigger element in UpdatePanel


What is wrong with this code? string email = emailTextbox; string SQL = "select * from users where username = '"+email+"' "; SqlCommand myCommand = new SQLCommand(SQL, myConnection) try { myConnection.Open(); SqlDataReader myReader=myCommand.ExecuteReader(); if (myReader.Read()) { ...
the string email will not have the right value.
There is nothing wrong in this code.
the SQL is subject to injection attacks.
the string email will not have the right value and the SQL is subject to injection attacks.
a SqlDataReader can't be instantiated from a SqlCommand object.


The property used to ensure that the encoded and encrypted viewstate is not tampered is:
ViewStateSecure
ViewStateSafe
EnableViewState
EnableViewStateMac


What are the primary request headers involved in Web API content negotiation?
Accept-Charset, Accept-Encoding
Accept, Accept-Charset, Accept-Encoding, Accept-Language
X-Requested-With, Accept, Accept-Charset, Accept-Encoding, Accept-Language
Accept-Charset, Accept-Encoding, Accept-Language


Which of the following is not a Web Form Event in ASP.NET: Page_Dispose Page_Error Page_AbortTransaction Page_CommitTransaction
Page_Dispose
All of these
None of these
Page_Error


The infrastructure that supports these dynamic operations at run time is called the__________.
CLR
CTS
DLR
CLS


Which of the following events are correctly ordered according to the Application lifecycle?
BeginRequest, AuthenticateRequest, AuthorizeRequest, AcquireRequestState, ResolveRequestCache, ProcessRequest, UpdateRequestCache, ReleaseRequestState, EndRequest.

BeginRequest, ResolveRequestCache, AuthenticateRequest, AuthorizeRequest, AcquireRequestState, ProcessRequest, ReleaseRequestState, UpdateRequestCache, EndRequest.
BeginRequest, AuthorizeRequest, AuthenticateRequest, ResolveRequestCache, AcquireRequestState, ProcessRequest, ReleaseRequestState, UpdateRequestCache, EndRequest.

BeginRequest, AuthenticateRequest, AuthorizeRequest, ResolveRequestCache, AcquireRequestState, ProcessRequest, ReleaseRequestState, UpdateRequestCache, EndRequest.


How can Web API OData support be implemented?
Controller extends EntitySetController<T>
Return IQueryable or IEnumerable
Controller extends ODataController
All of these


In ASP.NET if you want to allows page developers a way to specify static connections in a content page then the class used is
ProxyWebPartManager
WebPartManager
None of the Above
System.Activator


What is the use of "_" in asp.net?
space
concatenate
line break
link
separate


Which of the following statements is true about the GridView in .NET 4.5?
Strongly typed object binding
Uses CSS div’s instead of html table based layout
Can only be bound to a data sources or objects that are data bound in code behind
Uses AJAX functionality by default


What is correct Syntax for applying FAViCON ICON to your web page.
<link rel="icon" href="/favicon.ico" type="image/x-icon"/>
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon"/> <link rel="icon" href="/favicon.ico" type="image/x-icon"/>
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon"/>


Which of the following is not a WCF service behaviour?
Endpoint addresses
Adding security features to a service, such as impersonation, authorization, or managing tokens
Recording information about messages, such as tracking, tracing, or logging
Message and validation


What is the default timeout for a Cookie?
30 minutes
40 minutes
20 minutes
60 minutes


What can we specify in the web.config to apply Themes to an ASP.NET application?
<pages applyTheme="Windows7" />
<pages theme="Windows7" />
<pages theme="true" />
<pages themesEnabled="true" />


Under what condition(s) should a controller action be made async?
CPU & IO intensive
IO intensive
CPU intensive
All controller actions should be made async


To check for integrity of data in a Request object, the method used is:
HttpRequest.Current.Validate()
HttpRequest.ValidateUserInput()
HttpRequest.ValidateInput()
HttpRequest.Validate()


Asynchronous behavior is related to
Parallel Programming
Threading
None of these
Multi-core Processors


To enforce compatibility between ASP.NET and old COM components that does not support MTA model the attribute used in the @Page directive is:
backwardcompatibility
aspcompat
aspcompatibility
aspnetcompat


Which of the following locking techniques is considered speculative?
MemoryBarrier
SpinLock
lock
SpinWait


How do you turn off cookies for a page?
Set Cookie.Discard property to true
Set Cookie to false in all pages
Set IsCookieEnabled to false in all pages
Set CookieEnabled = false in all pages


How does Web API OData support partial updates?
Patch<T> parameter in controller action
Delta<T> parameter in controller action
PartialUpdatesEnabled setting in web.config
PartialUpdatesEnabled in global.asax.cs


What are the strategies for partitioning threads in a PLINQ query?
Auto or manual
IEnumerable or IQueryable
AsParallel().WithDegreeOfParallelism()
Chunked, ranged or hashed


Postback occurs in which of the following forms.
HTMLForms
Webforms
Winforms


Which of the following statements is true?
IEnumerable is thread safe by default because each iterator gets an IEnumerator
IEnumerable is both push and pull based
IEnumerable is a pull based sequence
IEnumerable is a push based sequence


The XML format that you can use to render DataSet object contents to XML is called:
DiffGram
RenderXML
XMLRender
RenderDataSet


What are the built-in WCF message encoder implementations?
TextMessageEncoder, BinaryMessageEncoder & MtomMessageEncoder
TextMessageEncoder, BinaryMessageEncoder & AtomMessageEncoder
All of these
StringMessageEncoder, BinaryMessageEncoder & MtomMessageEncoder


The property used to set absolute cache expiration in ASP.NET is:
Cache.NoSlidingExpiration
Cache.SetAbsoluteExpiration
Cache.AbsoluteExpiration
Cache.NoExpiration


When decorating a function with async, what is the appropriate return type?
Task<>
Task<object>
List<Object>
async

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