MCSD.NET - 70-315 Exam Question: Download MCSD.NET - 70-315 Exam PDF

Suppose You are creating an ASP.NET page for selling movie tickets. Users select a region, and then they
select from a list of cities in that region. The site displays the names and locations of movie
theaters in the city selected by the user.
Your company, XYZ Brothers, maintains a list of theaters in a database table that includes the
city, name, and street address of each theater. You want to minimize the time required to retrieve
and display the list of theater names after a user selects the region and city.
What should you do?
A. Modify the connection string to add the packet size property and set its values to 8192.
B. Add the following directive to the page:
OutputCache VaryByParam=?city?
C. Add the following directive to the page:
OutputCache VaryByControl=?region;city?
D. Modify the connection string to keep your database?s connection pool as small as possible.

Answer:

B. Add the following directive to the page:
OutputCache VaryByParam=?city?

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Suppose You are creating an ASP.NET page for XYZ. The page uses string concatenation to gather data
from multiple e-mail messages and format the data for display on the page.
You want to ensure that the page displays as quickly as possible.
What should you do?
A. Write code that uses the Append method of the StringBuilder object.
B. Write code that uses the Substring method of the String object.
C. Write code that uses the Concat method of the String object.
D. Write code that uses the plus-sign (+) operator to concatenate the strings.

Suppose You are creating an ASP.NET page for XYZ. You create a DataGrid control that displays past
purchases made by the user. The DataGrid control is populated from an existing database when
the page is created.
The page contains TextBox controls that allow users to update their personal information, such as
address and telephone number.
You need to ensure that the page is refreshed as quickly as possible when users update their
contact information.
What should you do?
A. Set the Enable property of the DataGrid control to false.
B. Set the EnableViewState property of the DataGrid to false.
C. Write code in the Page.Load event handler that populates the DataGrid control only when the
IsPostBack property of the page is false.
D. Write in the Page.Load event handler that populates the DataGrid control only when the
IsPostBack property of the page is true.