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Exam 15: Database Connectivity and Web Technologies

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Question 1

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Which of the following is the first step in the exchange between a web browser and a database?

A) The HTML output is displayed on the client computer's web browser.
B) The middleware receives the query result and creates the HTML-formatted page.
C) The client's web browser requests a page from a web server.
D) The web-to-database middleware uses ODBC to connect to the database.

E) C) and D)
F) None of the above

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Question 2

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Which of the following is a client-side extension?

A) ActiveX
B) ODBC
C) SQL*Net
D) TCP/IP

E) A) and B)
F) A) and C)

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Question 3

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provides a unified interface to access data from any programming language that uses the underlying OLE- DB objects.

The ODBC API standard defines three levels of compliance: ,Level-1,and Level-2,which provide increasing levels of functionality.

The main disadvantage of using CGI scripts is that:

__________ is a computing model for enabling ubiquitous,convenient,on-demand network access to a shared pool of configurable computer resources that can be rapidly provisioned and released with minimal management effort or service provider interaction.

A plug-in is an external application that is automatically invoked by a web browser when needed.

Based on Microsoft's Component Object Model (COM) ,is database middleware that adds object­oriented functionality for access to relational and nonrelational data.

To prevent the server from performing all data validation,data input validation is one of the most basic requirements for web applications.

HTML is designed to facilitate the extraction and manipulation of data from structured documents over the Internet.

Regardless of the type of web server interface used,a web-to-database program must be able to connect with a database.

is a web application server that provides the ability to connect web servers to multiple data sources.

Another name for a database server-side extension program is .

code is embedded inside an HTML page and is activated by triggering events such as clicking on a link.

What is JavaScript? How does it work?

Every XML document has a .

One of the advantages of over other middleware is that it requires no configuration on the client side.

Database connectivity software is also known as database middleware because it interfaces between the application program and the database.

A web server is a middleware application that expands the functionality of web servers by linking them to a wide range of services.

The label "stateless system" indicates that,at any given time,there is an open communication line between the server and each client accessing it.