Post: #1TS: WIN Server 2K8 Network Infrastructure, Configuring : 70-642 Pass4Sure

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Exam Number/Code: 70-642
Exam Name: TS: Windows Server 2008 Network Infrastructure, Configuring

“TS: Windows Server 2008 Network Infrastructure, Configuring”, also known as 70-642 exam, is a Microsoft certification.
Preparing for the 70-642 exam? Searching 70-642 Test Questions, 70-642 Practice Exam, 70-642 Dumps?

With the complete collection of questions and answers, Pass4sure has assembled to take you through 104 Q&As to your 70-642 Exam preparation. In the 70-642 exam resources, you will cover every field and category in TS helping to ready you for your successful Microsoft Certification.

QUESTION 1
You have a strongly typed DataSet object named CKDataSet. This object contains three DataTable
objects named Customers, Orders and OrderDetails.
Customers and Orders have a data column named CustomerID. Orders and OrderDetails have a data
column named OrderID.
Orders have a foreign key constraint between Customers and Orders on CustomerID. OrderDetails

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has a foreign key constraint between Orders and OrderDetails on OrderID.
You want to populate Customers, Orders and OrderDetails with data from Microsoft SQL Server
database.
In which order should you fill the Data table objects?
A. Customers
OrderDetails
Orders
B. OrderDetails
Orders
Customers
C. Customers
Orders
OrderDetails
D. Orders
OrderDetails
Customers
Answer: C
Explanation: We most populate the tables that are references by the foreign-key constraints first, namely
the Customers and the Orders table. We should populate the OrderDetails table last.
Incorrect Answers
A B: There would be no corresponds rows in the Orders table if we populate the OrderDetails table before
the Orders table.
D: There would be no corresponds rows in the Customers table if we populate the OrderDetails table
before the Customers table.
QUESTION 2
You create an XML web service that retrieves data from Microsoft SQL Server database. You
instantiate a SqlConnection object named CKConnection and set the Max Pool Size property of the
connectionString to 50.
All 50 connections are now in use. However, a request for connection number 51 is received.
What is the most likely result?
A. An exception is immediately thrown.
B. The current connection pool is expanded by 50 additional connections.
C. A new connection pool is created that has the same maximum number of connections.
D. The request is queued until a connection becomes available or until the timeout limit is reached.
Answer: D
Explanation: The Max Pool Size property denotes the maximum number of connections allowed in the
pool. If the maximum pool size has been reached and no usable connection is available, the request is
queued. The object pooler satisfies these requests by reallocating connections as they are released back into

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the pool. If the time-out period elapses before a connection object can be obtained, an error occurs.
Reference: .NET Framework Developer’s Guide, Connection Pooling for the SQL Server .NET Data
Provider
Incorrect Answers
A: An exception is only thrown after the request has been queued and after the timeout limit is reached.
B: The maximum number of concurrent connections has been reached. No further connections would be
allowed at the moment.
C: No new connection pool is created.
QUESTION 3
You are creating an X3ML Web service named ListBoxService. This service provides content, such as
states, countries, and geographical regions, for use in drop-down list boxes.
ListBoxService contains a Web method named RetrieveRegionsListBox. This method runs a DataSet
object that contains every geographical region in the world.
RetrieveRegionsListBox calls a Microsoft SQL Server database to load the DataSet object with region
data. You want to minimize the amount of time the method takes to return to the caller.
What should you do?
A. Use a stored procedure to return the data.
B. Store each DataSet object by using the Session object.
C. Set the BufferResponse property of the WebMethod attribute to false.
D. Set the CacheDuration property of the WebMethod attribute to an interval greater than zero.
Answer: D
Explanation: The BufferResponse property denotes the number of seconds the response should be held in
the cache. The default is 0, which means the response is not cached. Caching the response would improve
performance.
Incorrect Answers
A: A stored procedure is located at the SQL Server computer. It improves performance, especially if the
code is run repeatedly. However, this is not the case in this scenario.
B: Storing each DataSet object by using session object would increase the overhead.
C: The WebMethodAttribute.BufferResponse property gets or sets whether the response for this request
is buffered. Setting the value to false would not buffer the request.
Reference:
.NET Framework Class Library, WebMethodAttribute.CacheDuration Property [C#]
.NET Framework Class Library, WebMethodAttribute.BufferResponse Property [C#]

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Questons and Answers : 104 Q&As
Updated: 4/14/2008

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