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QUESTION 71
You need to choose the appropriate data access technology for the cookbook area of the web application. Which data access technology should you choose?
A. WCF Data Services
B. LINQ to SQL
C. Entity Framework
D. ADO.NET
Answer: A
Explanation:
* Scenario: The cookbook functionality is contained within a client-side application that must connect to the server using HTTP and requires access to the data using JavaScript.
* WCF Data Services (formerly known as “ADO.NET Data Services”) is a component of the .NET Framework that enables you to create services that use the Open Data Protocol (OData) to expose and consume data over the Web or intranet by using the semantics of representational state transfer (REST). OData exposes data as resources that are addressable by URIs. Data is accessed and changed by using standard HTTP verbs of GET, PUT, POST, and DELETE
* WCF Data Services uses the OData protocol for addressing and updating resources. In this way, you can access these services from any client that supports OData. OData enables you to request and write data to resources by using well-known transfer formats.
* Atom, a set of standards for exchanging and updating data as XML, and JavaScript Object Notation (JSON), a text-based data exchange format used extensively in AJAX application.
QUESTION 72
You are preparing to write the data access code for the children’s book area of the web site. You need to review the requirements and identify the appropriate data access technology. What should you do?
A. Use ADO.NET Entity Framework.
B. Use a Web Service.
C. Use the WCF Data Services.
D. Use LINQ to SQL.
Answer: A
QUESTION 73
The PurchaseOrders.xml file contains all of the purchase orders for the day. You need to query the XML file for all of the billing addresses. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
QUESTION 74
You need to create an OData filter expression that returns books that match the following characteristics:
– Published after 1/1/2000
– Have “Science” as the first word
Which filter statement should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Explanation:
* gt: Greater than.
Example:
filter=Entry_No gt 610
Query on GLEntry service. Returns entry numbers 611 and higher.
* startswith
Example:
filter=startswith(Name, ‘S’)
Query on Customer service. Returns all customers names beginning with “S”.
QUESTION 75
You need to update the ImportBooks() method to use database transactions. Which code segment should you use?
A. SqlConnection.BeginTransaction(IsolationLevel.RepeatableRead);
B. SqlConnection.BeginTransaction(IsolationLeve.ReadUnconvnited);
C. SqlConneetion.BeginTransaction(IsolationLevel.Serializable);
D. SqlConnection.BeginTransaction(IsolationLevel.Snapshot);
Answer: B
Explanation:
* Scenario: The ImportBooks() method must keep a copy of the data that can be accessed while new books are being imported without blocking reads.
* ReadUncommitted: A dirty read is possible, meaning that no shared locks are issued and no exclusive locks are honored.
QUESTION 76
You need to implement the Get() method in the bookstore Web API application to be able to find books by using an ad hoc query. Which method should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
QUESTION 77
Drag and Drop Question
You need to update the GetBook() method to retrieve book data by using ADO.NET. You have the following code:
Which code segments should you include in Target 1, Target 2, Target 3, Target 4 and Target 5 to complete the code? (To answer, drag the appropriate code segments to the correct targets in the answer area. Each code segment 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:
QUESTION 78
You need to create an OData query expression to return the ten books with the largest number of sales. Which query expression should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Explanation:
Order by desc(ending) to get the posts with the largest number of sales at the top. Specify to display the top 10 posts.
QUESTION 79
Drag and Drop Question
You are developing an ASP.NET MVC Web API application. The methods of the Web API must return details about the result of the operation. You need to create methods to update and delete products. You have the following code:
Which code segments should you include in Target 1, Target 2, Target 3, Target 4 and Target 5 to complete the code? (To answer, drag the appropriate code segments to the correct targets in the answer area. Each code segment 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:
QUESTION 80
Hotspot Question
You are developing an application. The application must be deployed from Team Foundation Server after a successful build is completed. The Process tab of the Build Definition screen is shown in the exhibit.
You need to configure the automated deployment. In which section should you define the parameters for the automated deployment? (To answer, select the appropriate section in the answer area.)
Answer:
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