Question 1

The ____ object is a specialized object that creates a read-only session with the database to retrieve data sequentially (forward only) in a very fast manner.
A) Command
B) DataReader
C) DataAdapter
D) DataSet

Accepted Answer

The DataReader object is specifically designed for retrieving data from a database in a sequential (forward only) manner, which makes it very fast for reading large amounts of data. The Command object is used to execute SQL queries or stored procedures on a database, the DataAdapter is used to fill a DataSet with data from a database, and the DataSet is an in-memory representation of data that can be manipulated and queried using various methods. None of these objects are as efficient at reading data as the DataReader.

Question 2

____ is a higher-level object-oriented application interface used to access remote database servers.
A) API
B) ODBC
C) DAO
D) RDO

Accepted Answer

RDO (Remote Data Objects) is a higher-level object-oriented application interface used to access remote database servers. The other options (API, ODBC, DAO) are also used in database connectivity, but they are not specifically designed for remote access to databases.

Question 3

The ____ is the most specialized object in the ADO.NET framework.
A) Command
B) DataReader
C) DataAdapter
D) DataSet

Accepted Answer

The answer of The ____ is the most specialized object...

Question 4

The initial costs of using cloud services tend to be significantly higher than building on-premise IT infrastructures.

Accepted Answer

The initial costs of using cloud services tend to be lower than building on-premise IT infrastructures since cloud services eliminate the need for purchasing and maintaining physical hardware and infrastructure.

Question 5

The label "stateless system" indicates that, at any given time, a Web server knows the status of the clients communicating with it.

Accepted Answer

A stateless system does not maintain information about the state of the clients it communicates with. Each request is treated as an independent transaction without any knowledge of previous requests.

Question 6

To be able to use a DTD file to define elements within an XML document, the DTD must be stored within that XML document.

Accepted Answer

The DTD can be stored externally and referenced within the XML document using a DOCTYPE declaration.

Question 7

The only time the client and server computers communicate is when the client requests a page -when the user clicks a link- and the server sends the requested page to the client.

Accepted Answer

This is true. The client sends a request for a page to the server, and the server responds by sending the requested page back to the client. The client and server do not communicate continuously while the user is viewing the page.

Question 8

ColdFusion is a Web application server.

Accepted Answer

ColdFusion is a powerful and flexible web application server that uses CFML (ColdFusion Markup Language) for developing web applications.

Question 9

The first line of an XML document represents the document declaration, and it is mandatory.

Accepted Answer

The first line of an XML document represents the document declaration, which is mandatory. It typically includes the document type definition (DTD) or XML schema, as well as other optional attributes such as encoding and version.

Question 10

HTML is designed to facilitate the exchange of structured documents, such as orders and invoices, over the Internet.

Accepted Answer

The answer of HTML is designed to facilitate the exchange...

Question 11

Based on Microsoft's Component Object Model (COM), ____ is database middleware that adds object-oriented functionality for access to relational and nonrelational data.
A) MS-DB
B) OLE-DB
C) COM-DB
D) ODBC

Accepted Answer

OLE-DB is the database middleware that adds object-oriented functionality for access to relational and nonrelational data based on Microsoft's Component Object Model (COM). MS-DB and COM-DB are not actual technologies, and while ODBC provides connectivity to databases, it does not provide object-oriented functionality.

Question 12

In the ODBC architecture, a(n) ____ is in charge of managing all database connections.
A) API
B) data source name
C) ODBC driver
D) driver manager

Accepted Answer

The driver manager is responsible for managing all database connections in the ODBC architecture. It loads the appropriate ODBC driver, manages connection pooling, and handles error messages. The API is the set of functions that allow an application to interact with the ODBC driver manager. The data source name is a user-defined name that identifies a specific data source and its associated driver. The ODBC driver is responsible for communicating with a specific database management system.

Question 13

____ is an OO programming language developed by Sun Microsystems that runs on top of the Web browser software.
A) Visual Basic
B) Java
C) JavaScript
D) VBScript

Accepted Answer

Java is an object-oriented programming language developed by Sun Microsystems, and it can be used to create Java applets that run within a web browser. Visual Basic is also an object-oriented programming language, but it is primarily used for developing Windows desktop applications. JavaScript and VBScript are scripting languages used for creating dynamic web content, but they are not object-oriented programming languages.

Question 14

____ is a collection of technologies used to access any type of data source and manage the data through a common interface.
A) DAO
B) UDA
C) ODBC
D) OLE-DB

Accepted Answer

The answer of ____ is a collection of technologies used...

Question 15

A Web browser's function is to display a page on the client computer. The browser, through its use of HTML, does not have computational abilities beyond formatting output text and accepting form field inputs.

Accepted Answer

A web browser's main function is to display web pages on a client computer or device. While modern browsers do have some computational abilities, such as running JavaScript code, their primary purpose is still to display content and facilitate user interaction with that content. The actual computation and processing of data often occurs on the server-side or through other specialized software.

Question 16

The ODBC API standard defines three levels of compliance: ____, Level-1, and Level-2, which provide increasing levels of functionality.
A) Complete
B) Basic
C) Core
D) Level-0

Accepted Answer

The ODBC API standard defines three levels of compliance: Core, Level-1, and Level-2, which provide increasing levels of functionality. Therefore, the correct answer is C, as "Core" is one of the three defined levels of compliance. "Complete" and "Level-0" are not defined levels in the ODBC API standard, and "Basic" is not mentioned as one of the three compliance levels.

Question 17

The ____ object is the in-memory representation of the data in the database.
A) Command
B) DataReader
C) DataAdapter
D) DataSet

Accepted Answer

The DataSet object is the in-memory representation of the data in the database. The DataReader object provides a forward-only, read-only access to the data while the DataAdapter object is used to retrieve data and populate the DataSet object. The Command object is used to execute a SQL statement or stored procedure.

Question 18

Cloud services allow any organization to quickly and economically add information technology services such as applications, storage, servers, processing power, databases, and infrastructure to its IT portfolio.

Accepted Answer

Cloud services are known for their ability to provide quick and cost-effective access to a wide range of IT resources, including applications, storage, servers, processing power, databases, and infrastructure. This makes them an attractive option for many organizations looking to expand their IT capabilities without incurring significant upfront costs or requiring extensive maintenance and management resources.

Question 19

ODBC works on the ____ operating system.
A) mainframe
B) UNIX
C) Windows
D) Linux

Accepted Answer

ODBC (Open Database Connectivity) was developed by Microsoft, and it works primarily on Windows operating systems. Although there are ODBC drivers available for other operating systems like UNIX and Linux, Windows is the most widely used platform for ODBC.

Question 20

Many companies are already working on the development of a new breed of services based on XML and Web technologies.

Accepted Answer

Many companies are indeed working on the development of services based on XML and Web technologies.

Quiz 11: Interacting With Databases Through the Web

The ____ object is a specialized object that creates a read-only session with the database to retrieve data sequentially (forward only) in a very fast manner.

____ is a higher-level object-oriented application interface used to access remote database servers.

The ____ is the most specialized object in the ADO.NET framework.

The initial costs of using cloud services tend to be significantly higher than building on-premise IT infrastructures.

The label "stateless system" indicates that, at any given time, a Web server knows the status of the clients communicating with it.

To be able to use a DTD file to define elements within an XML document, the DTD must be stored within that XML document.

The only time the client and server computers communicate is when the client requests a page -when the user clicks a link- and the server sends the requested page to the client.

ColdFusion is a Web application server.

The first line of an XML document represents the document declaration, and it is mandatory.

HTML is designed to facilitate the exchange of structured documents, such as orders and invoices, over the Internet.

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

In the ODBC architecture, a(n) ____ is in charge of managing all database connections.

____ is an OO programming language developed by Sun Microsystems that runs on top of the Web browser software.

____ is a collection of technologies used to access any type of data source and manage the data through a common interface.

A Web browser's function is to display a page on the client computer. The browser, through its use of HTML, does not have computational abilities beyond formatting output text and accepting form field inputs.

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

The ____ object is the in-memory representation of the data in the database.

Cloud services allow any organization to quickly and economically add information technology services such as applications, storage, servers, processing power, databases, and infrastructure to its IT portfolio.

ODBC works on the ____ operating system.

Many companies are already working on the development of a new breed of services based on XML and Web technologies.