Posts Tagged ‘70-547-VB’

Database Transaction and Security

September 25th, 2009

First of all, we need to understand what is a transaction in a database? and how does it affect the database?

A transaction is a group of actions such as insert, update, and delete performed on the database to change the state of a database. After a transaction is performed successfully, the database changes to a new state from its existing state.

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What is the ToolStrip control?

September 2nd, 2009

The ToolStrip control is a special control that is used to create professional looking and highly optimized toolbars, status bars, and menus in a Windows form. It can host ToolStripItem controls, which are similar to common controls such as Button, Label, and ComboBox. However, ToolStripItem controls are specifically designed to be hosted in the ToolStrip control.

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What is Web Setup project?

September 1st, 2009

The Web Setup project is a Setup and Deployment project, which is used to create installation packages for the deployment of Web-based applications such as XML Web services, Web applications etc., to a Web server. It creates an (.msi) installer package. Using the Web Setup project for deployment handles the registration and configuration issues automatically.

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What is Sn.exe?

August 31st, 2009

Strong Name (Sn.exe) is a tool used to sign assemblies with strong names. It also provides signature generation, signature verification, and key management. Following is the syntax for using Sn.exe:

sn [options [parameters]]

where, the term options specifies the options to be used, and parameters specifies the parameters used with options. Following are the options that are commonly used with Sn.exe:

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What is Regsvcs.exe?

August 31st, 2009

.NET Services Installation (Regsvcs.exe) is a tool used to load and register assemblies as well as generate, register, and install a type library into a COM+ 1.0 application. It is also used to configure services that are programmatically added to a class.

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What are the disadvantages of using profile properties server-based technique?

August 18th, 2009

The following are the disadvantages of using profile properties :

  • The profile data is stored in a data store, instead in a memory. Therefore, the performance of profile properties becomes slow in comparison with using a session state technique.

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What are the different usages of server-based state management techniques?

August 18th, 2009

The following table describes the different usages of server-based state management techniques:

State Management Techniques Usages
Session State It is used when small amounts of state management information that is specific to an individual session need to be stored for each user session. It is also used when there is no security issue.
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What are the advantages of using a database for storing server-based state management information?

August 18th, 2009

The following are the advantages of using a database for storing server-based state management information:

  • Large amount of information can be stored in a database.
  • To access a database, authentication and authorization is required for security purpose.
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What are the disadvantages of using a database to store server-based state management information?

August 18th, 2009

The following are the disadvantages of using a database to store server-based state management information:

  • The hardware and software configurations can become more complex if state management information is stored in a database.
  • A poorly constructed relational data model for a database, can lead to scalability issues.
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What are the advantages of using session state server-based technique?

August 17th, 2009

The following are the advantages of using session state server-based technique:

  • It is easy to use and is familiar to ASP.NET developers. It is also consistent with other .NET Framework classes.
  • Several session management events can be raised and can be used by Web-based applications.
  • The session state data variables are preserved even if the IIS and the worker-process is restarted without losing any session data. Therefore, the data is stored in another process space of a Web application.
  • The session data can be persisted among multiple application processes such as a process in a Web farm or a Web garden.
  • It can be used both in multi-computer and multi-process configurations. Therefore, it optimizes scalability of a Web application.
  • It is used without the support of cookies. Therefore, it requires a session identifier to be placed in a query string.
  • It can be customized and extended by writing a custom session-state provider. It can then be stored in a custom data format in a data storage mechanism such as a database, an XML file, or a Web service.

However, session state has a drawback. The state management information stays in memory as long as a session is alive. Therefore, it degrades the performance of a Web server. The data variables that contain blocks of information such as large datasets can also affect the performance of a Web server, as server load may increase.

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