Question 1

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 as a separate file and referenced within the XML document using a DOCTYPE declaration.

Question 2

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

Accepted Answer

The label "stateless system" indicates that a Web server does not remember the state or status of clients communicating with it. Each request is treated as an independent transaction, and the server does not keep track of any previous interactions.

Question 3

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 provide a flexible and scalable solution for organizations to add IT services without the need for upfront investment in expensive hardware or infrastructure. These services can be rapidly deployed and easily managed, allowing organizations to focus on their core business objectives without being limited by IT constraints.

Question 4

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

Accepted Answer

This statement is true. The client and server only communicate when the client requests a page, when the end user clicks on a link, and when the server sends the requested page to the client.

Question 5

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 developing new services based on XML and Web technologies, as these technologies offer great potential for data interchange and integration between different systems and platforms. Some examples of such services include web services, data feeds, and API integrations.

Question 6

____ 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 OO programming language developed by Sun Microsystems that is commonly used to create applications that run on various platforms, including web browsers. JavaScript and VBScript are scripting languages used to add interactivity and functionality to web pages, but they do not run directly on top of web browsers. Visual Basic is a desktop application programming language, not a web programming language.

Question 7

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

Accepted Answer

The first line of an XML document must contain the document declaration, which is mandatory.

Question 8

____ 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. It allows developers to write applications that can access data from different databases using a common set of object-oriented programming techniques. ODBC and DAO are also application interfaces for accessing databases, but they are not designed specifically for remote database access. API (Application Programming Interface) is a term used to describe a set of programming instructions and standards for accessing a software application or web tool. It is not specific to database access.

Question 9

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

Accepted Answer

HTML (Hypertext Markup Language) is primarily designed for creating and displaying web pages and web content, not for exchanging structured documents like orders and invoices. XML (Extensible Markup Language) is more suited for that purpose.

Question 10

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 (Object Linking and Embedding-Database) is a Microsoft technology based on COM that provides middleware for accessing data stores, both relational and non-relational, as objects. MS-DB (Microsoft Database) and COM-DB (Component Object Model-Database) are not actual technologies or products. ODBC (Open Database Connectivity) is another middleware technology for accessing databases but it is not based on COM.

Question 11

____ 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 12

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 13

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. It is used to hold multiple tables with relationships, constraints, and changes made to the data. The Command object is used to execute a query against the database, the DataReader object is used to read data from the database and the DataAdapter object is used to fill DataSet from the database.

Question 14

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 Core, Level-1, and Level-2 compliance levels, which provide increasing levels of functionality.

Question 15

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

Accepted Answer

ODBC (Open Database Connectivity) is a technology that provides a standard interface between different applications and database management systems. ODBC drivers are available for various operating systems, including Windows, UNIX, and Linux. However, ODBC is most commonly used on the Windows operating system, where it is integrated with Microsoft SQL Server and other popular databases. Therefore, the best choice for this question is C) Windows.

Question 16

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

Accepted Answer

The initial costs of building on-premise IT infrastructures are typically higher than using cloud services, due to expenses such as purchasing hardware and software, hiring IT staff, and setting up and maintaining the infrastructure. Cloud services, on the other hand, typically have lower upfront costs and are more scalable, allowing businesses to pay only for the resources they need.

Question 17

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 content from web pages to the user. The browser interprets and renders HTML and CSS to create a visual representation of the web page. While certain browser extensions or plugins may provide additional computational abilities, the core function of a browser does not involve advanced computations.

Question 18

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 the component responsible for managing all database connections in the ODBC architecture. It loads and unloads drivers dynamically and provides a common interface for applications to interact with different types of databases through the drivers. APIs are used by applications to make requests to the ODBC driver, while a data source name is a user-defined name that maps to a specific data source, which can be accessed through an ODBC driver.

Question 19

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 specialized object that creates a read-only session with the database to retrieve data sequentially in a very fast manner is the DataReader object. The Command object executes a query or a stored procedure, the DataAdapter fills a DataSet with data, and the DataSet is an in-memory representation of retrieved data. Only the DataReader allows for fast sequential reading of data. So, the best choice is B) DataReader.

Question 20

ColdFusion is a Web application server.

Accepted Answer

ColdFusion is a commercial rapid web application development platform created by J. J. Allaire in 1995. It is a Web application server.

Quiz 14: Database Connectivity and Web Technologies

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

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.

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

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

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

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

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

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.

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

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

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

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

ODBC works on the ____ operating system.

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

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.

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

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.

ColdFusion is a Web application server.