Q1. - (Topic 4)
You are developing an ASP.NET MVC application. The application is deployed in a web farm and is accessed by many users.
The application must handle web server failures gracefully. The servers in the farm must share the short-term state information.
You need to persist the application state during the session.
What should you implement?
A. ASP.NET session state
B. A local database
C. A state server
D. Profile properties
Answer: C
Q2. - (Topic 4)
You are developing an ASP.NET MVC application by using Visual Studio 2012.
The application throws and handles exceptions when it runs.
You need to examine the state of the application when exceptions are thrown.
What should you do?
A. From the Debug menu in Visual Studio 2012, select Exceptions. Enable the Thrown
check box for Common Language Runtime Exceptions.
B. From the Debug menu in Visual Studio 2012, select Exceptions. Disable the User-unhandled check box for Common Language Runtime Exceptions.
C. Add the following code to the web.config file of the application.
<customErrors mode="On" >
<error statusCode="500" redirect="CustomErrors.html" />
</customErrors>
D. Add the following code to the web.config file of the application.
<customErrors mode="On" >
<error statusCode="404" redirect="CustomErrors.html" />
</customErrors>
Answer: A
Q3. - (Topic 4)
You are implementing a website redesign of an existing website that provides historical weather condition maps. The current layout resembles the following graphic.
Year selection is implemented as a set of links, which causes the page to reload when the user changes the year. The year selection HTML is contained in a div with an id of "year-changer".
You need to modify the page so that the user can change the year without the page reloading. You also need to ensure that there is minimal change to the design of the page.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
Explanation: jQuery code will bind the slider control to the div.
$(document).ready(function(){
$("#slider").slider();
});
Now, when you run this page then you will see a long slider on page with no range. As we
have not specified any range.slider control comes with various options/properties which can be set. Here are few of them.
1.
min : Minimum value allowed for the slider.
2.
max : Maximum allowed value for the slider.
3.
step : How much you want to increment when you slide. Default is 1.
4.
value : set default value of the slider.
Reference: Implement jQuery UI slider with ASP.NET
http://www.jquerybyexample.net/2010/09/implement-jquery-ui-slider-with-aspnet.html
Q4. - (Topic 4)
You are developing an ASP.NET MVC application that uses forms authentication. The application uses SQL queries that display customer order data.
You need to prevent all SQL injection attacks against the application.
How should you secure the queries?
A. Implement parameterization.
B. Pattern check the input.
C. Filter out prohibited words in the input.
D. Escape single quotes on string-based input parameters.
Answer: A
Explanation: With most development platforms, parameterized statements that work with parameters can be used (sometimes called placeholders or bind variables) instead of embedding user input in the statement. A placeholder can only store a value of the given type and not an arbitrary SQL fragment. Hence the SQL injection would simply be treated as a strange (and probably invalid) parameter value.
Reference: https://en.wikipedia.org/wiki/SQL_injection#Parameterized_statements
Q5. - (Topic 2)
You are designing a Windows Communication Foundation (WCF) service that uses the Product class.
You need to update the class to meet the storage requirement.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Mark the Product class with the DataContract attribute.
B. Mark the public members of the Product class with the DataContractFormat attribute.
C. Mark the Product class with the CollectionDataContract attribute.
D. Mark the public members of the Product class with the DataMember attribute.
Answer: A,D
Explanation: So as of .NET 3.5 SP1, you don't have to add data contract or data member
attributes anymore - if you don't then the data contract serializer will serialize all public
properties on your class, just like the XML serializer would.
HOWEVER: by not adding those attributes, you lose a lot of useful capabilities:
. without [DataContract], you cannot define an XML namespace for your data to live
in . without [DataMember], you cannot serialize non-public properties or fields . without [DataMember], you cannot define an order of serialization (Order=) and the
DCS will serialize all properties alphabetically . without [DataMember], you cannot define a different name for your property (Name=) . without [DataMember], you cannot define things like IsRequired= or other useful attributes . without [DataMember], you cannot leave out certain public properties - all public properties will be serialized by the DCS
Q6. - (Topic 2)
You need to implement client-side animations according to the business requirements.
Which line of code should you use? (Each correct answer presents a complete solution. Choose all that apply.)
A. $ ("h1: first") .animate ({ opacity: 0 });
B. $("h1:first").fadeIn(1000);
C. $("h1:first").animate({ opacity: 1 });
D. $("h1:first").fadeOut(1000);
Answer: A,D
Topic 3, Video Transcoding Service
Background
You are developing a video transcoding service. This service is used by customers to upload video files, convert video to other formats, and view the converted files. This service is used by customers all over the world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for administrators to upload video and schedule transcoding. It also enables administrators and users to download the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This information is read from a cookie that is set on the server. The administrative links must not be present if an error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request
requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles. The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is installed, an Environment variable named transcode contains the path to the utility. A variable named license contains the license key. The license for the transcoding utility requires that it be unregistered when it is not in use. The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility can be running at any one time. If an instance of the role cannot process an additional video, it must not prevent any other roles from processing that video.
. The utility logs errors to a Logs directory under the utilities path.
. A local Azure directory resource named perf is used to capture performance data.
Development:
. Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the transcode.exe utility.
. An x509 certificate has been created and distributed to the developers for this purpose.
. Developers must be able to use only RDP and not any other administrative functions.
Application Structure
Q7. - (Topic 4)
You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers.
You have the following requirements:
Messages must be able to be sent and received simultaneously.
Latency and unnecessary header data must be eliminated.
The application must comply with HTML5 standards.
You need to design the application to meet the requirements.
What should you do?
A. Configure polling from the browser.
B. Implement long-running HTTP requests.
C. Implement WebSockets protocol on the client and the server.
D. Instantiate a MessageChannel object on the client.
Answer: D
Q8. DRAG DROP - (Topic 4)
You are developing an ASP.NET MVC web application that requires HTML elements to take on new behaviors. These should be implemented with a behavior script in a page that is only for Microsoft Internet Explorer users.
The colorchange.js script uses the Microsoft CSS vendor-specific Behavior extension. You need to apply the script with CSS.
You need to use the script to change the color of text.
You have the following markup:
Which styles should you include in Target 1 and Target 2 to complete the markup? (To answer, drag the appropriate styles to the correct targets. Each style may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
Q9. - (Topic 4)
You are designing a distributed application that runs on the Microsoft Azure platform.
The application must store a small amount of insecure global information for all users that
does not change frequently.
You need to configure the application to meet the requirements.
Which server-side state management option should you use? Each correct answer presents a complete solution. Choose all that apply.
A. profile properties of the Microsoft Azure application
B. Microsoft Azure session state
C. SQL Database
D. Microsoft Azure application state
Answer: A
Explanation: In many applications, you want to store and use information that is unique to a user. When a user visits your site, you can use the information you have stored to present the user with a personalized version of your Web application. Personalizing an application requires a number of elements: you must store the information using a unique user identifier, be able to recognize users when they visit again, and then fetch the user information as needed. To simplify your applications, you can use the ASP.NET profile feature, which can perform all of these tasks for you.
Q10. - (Topic 2)
You need to implement the business requirements for managing customer data.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add a class named Customer-Controller to the Controllers folder. Then add a method named Edit to the class.
B. Create a new controller named Administration in the Controllers folder. Add an action named EditCustomer to the controller.
C. Add a folder named Customer to the Views folder. Then create a view inside this folder named Edit.aspx.
D. Create a new folder named EditCustomer to the Views folder. In the new folder, create a new file named Administration.aspx.
Answer: A,B