Microsoft 70-523

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Microsoft UPG:Transition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The
application connects to a Microsoft SQL Server 2008 database.
The database includes a database table named ProductCatalog as shown in the exhibit. (Click the Exhibit
button.)
You add the following code segment to query the first row of the ProductCatalog table. (Line numbers are
included for reference only.)
01 using (var cnx = new SqlConnection(connString))
02 {
03 var command = cnx.CreateCommand();
04 command.CommandType = CommandType.Text;
05 command.CommandText ="SELECT TOP 1 * FROM dbo.ProductCatalog";
06 cnx.Open();
07 var reader = command.ExecuteReader();
08 if (reader.Read()) {
09 var id = reader.GetInt32(0);
10
11 reader.Close();
12 }
13 }
You need to read the values for the Weight, Price, and Status columns.
Which code segment should you insert at line 10?
Exhibit:

A) var weight = reader.GetFloat(1); var price = reader.GetDouble(2); var status = reader.GetByte(3);
B) var weight = reader.GetDecimal(1); var price = reader.GetFloat(2); var status = reader.GetByte(3);
C) var weight = reader.GetDouble(1); var price = reader.GetFloat(2); var status = reader.GetBoolean(3);
D) var weight = reader.GetDouble(1); var price = reader.GetDecimal(2); var status = reader.GetBoolean(3);

2. A Windows Communication Foundation (WCF) service has a callback contract.
You are developing a client application that will call this service.
You must ensure that the client application can interact with the WCF service.
What should you do?

A) On the client, use GetCallbackChannel<T>.
B) On the OperationContractAttribute, set the AsyncPattern property value to True.
C) On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the client.
D) On the client, create a proxy derived from DuplexClientBase<TChannel>.

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application.
The application contains the following code segment. (Line numbers are included for reference only.)
01 class DataAccessLayer
02 {
03 private static string connString;
04
05 ...
06 public static DataTable GetDataTable(string command){
07
08 ...
09 }
10 }
You need to define the connection life cycle of the DataAccessLayer class. You also need to ensure that
the application uses the minimum number of connections to the database.
What should you do?

A) Insert the following code segment at line 07. using (SqlConnection conn = new SqlConnection(connString)){
conn.Open();
}
B) Insert the following code segment at line 04. private SqlConnection conn = new SqlConnection(connString); public void Open(){
conn.Open();
}
public void Close(){
conn.Close();
}
C) Insert the following code segment at line 04. private static SqlConnection conn = new SqlConnection(connString); public static void Open(){
conn.Open();
}
public static void Close(){
conn.Close();
}
D) Replace line 01 with the following code segment. class DataAccessLayer : IDisposable Insert the following code segment to line 04. private SqlConnection conn = new SqlConnection(connString); public void Open(){
conn.Open();
}
public void Dispose(){
conn.Close();
}

4. You use Microsoft Visual Studio 2010, Microsoft Sync Framework, and Microsoft .NET Framework 4 to create an application. You have a ServerSyncProvider connected to a Microsoft SQL Server database. The database is hosted on a Web server. Users will use the Internet to access the Customer database through
the ServerSyncProvider. You write the following code segment. (Line numbers are included for reference
only.)
01SyncTable customerSyncTable = new SyncTable("Customer");
02customerSyncTable.CreationOption = TableCreationOption. UploadExistingOrCreateNewTable;
03
04customerSyncTable.SyncGroup = customerSyncGroup;
05 this.Configuration.SyncTables.Add(customerSyncTable);
You need to ensure that the application meets the following requirements: "Users can modify data locally
and receive changes from the server. "Only changed rows are transferred during synchronization. Which
code segment should you insert at line 03?

A) customerSyncTable.SyncDirection = SyncDirection.DownloadOnly;
B) customerSyncTable.SyncDirection = SyncDirection.Snapshot;
C) customerSyncTable.SyncDirection = SyncDirection.Bidirectional;
D) customerSyncTable.SyncDirection = SyncDirection.UploadOnly;

5. You are designing an ASP.NET Web application for online image editing. Users can upload images to the
Web application and edit those images by using utilities provided by the application. Some utilities are
processor intensive and should be offloaded to a Graphics Processing Unit (GPU). Other utilities require
the use of proprietary algorithms that must be performed on the server.
You need to design a solution for minimizing bandwidth usage and Web server response times during
image processing, while providing a responsive application.
Which two approaches should you recommend? (Each correct answer presents part of the solution.
Choose two.)

A) Perform server-side image processing on a dedicated server.
B) Perform client-side image processing by using Microsoft Silverlight.
C) Perform client-side image processing by using ASP.NET AJAX.
D) Perform server-side image processing on the Web server.

Solutions: