Kiểm Tra Dữ Liệu

What is the function of the 'Required Field Validator' control?

• This control is used to check that a value in the control must be entered.

• This control is used to compare the value of one control with the value of another control or a predefined value.

• This control is used to check that the value in the control must be within the range [min - max].

• This control is used to check that the value of the control must follow a specified pattern such as: email address, phone number, area code...

What is the function of the 'Compare Validator' control?

• This control is used to check that a value in the control must be entered.

• This control is used to compare the value of one control with the value of another control or a predefined value.

• This control is used to check that the value in the control must be within the range [min - max].

• This control is used to check that the value of the control must follow a specified pattern such as: email address, phone number, area code...

What is the function of the 'Range Validator' control?

• This control is used to check that a value in the control must be entered.

• This control is used to compare the value of one control with the value of another control or a predefined value.

• This control is used to check that the value in the control must be within the range [min - max].

• This control is used to check that the value of the control must follow a specified pattern such as: email address, phone number, area code...

What is the function of the 'Regular Expression Validator' control?

• This control is used to check that a value in the control must be entered.

• This control is used to compare the value of one control with the value of another control or a predefined value.

• This control is used to check that the value in the control must be within the range [min - max].

• This control is used to check that the value of the control must follow a specified pattern such as: email address, phone number, area code...

What is the function of the Command object in ADO.net?

• Create a connection between the application and the data source (Database)

• Perform operations with the data source

• It is a data access object that directly uses a server-side cursor and maintains a connection to the server throughout the data reading process

• It is an object that retrieves data from the data source for the application.

What is the function of the DataReader object in ADO.net?

• Create a connection between the application and the data source (Database)

• Perform operations with the data source

• It is a data access object that directly uses a server-side cursor and maintains a connection to the server throughout the data reading process

• It is an object that retrieves data from the data source for the application.

What is the function of the DataAdapter object in ADO.net?

• Create a connection between the application and the data source (Database)

• Perform operations with the data source

• It is a data access object that directly uses a server-side cursor and maintains a connection to the server throughout the data reading process

• It is an object that retrieves data from the data source for the application.

Choose the most correct statement about the Cookies object?

• It is a small piece of data or a file that the Webserver stores on the user's machine. Each time there is a request to the Webserver, the information of the cookies will also be sent back to the webserver

• It is an object used to store user information in the application. The information stored in this object belongs to a specific user.

Choose the most correct statement about the Session object?

• It is a piece of data or a file that is quite small stored by the Webserver on the user's machine. Each time there is a request to the Webserver, the information of cookies will also be sent back to the webserver.

• It is an object used to store user information in the application. The information stored in this object belongs to a specific user in a specific session.

• It is an object used to manage all information of a web application.

• It is an object that accesses data directly, using a server-side pointer and maintaining a connection with the server throughout the data reading process.

Choose the most correct statement about the Application object?

• It is a piece of data or a file that is quite small stored by the Webserver on the user's machine. Each time there is a request to the Webserver, the information of cookies will also be sent back to the webserver.

• It is an object used to store user information in the application. The information stored in this object belongs to a specific user in a specific session.

• It is an object used to manage all information of a web application.

• It is an object that accesses data directly, using a server-side pointer and maintaining a connection with the server throughout the data reading process.