Deck 14: Database Connectivity and Web Technologies

Question 1

A client-side extension is a program that interacts directly with the Web server to handle specific types of requests.

Answer 1

False

Question 2

A database server-side extension is known as Web-to-database middleware.

Answer 2

True

Question 3

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

Answer 3

True

Question 4

The CGI is a newer Web-server interface standard that is much more efficient and faster than a dynamic link library (DLL).

Question 5

Whether you purchase online or by standing in line,the system-level transaction details are essentially the same and they require the same basic database structures and relationships.

Question 6

APIs are implemented as dynamic-link libraries that are dynamically invoked when needed.

Question 7

An API uses script files that perform specific functions on the client's parameters that are passed to the Web server.

Question 8

The creation and management of user interfaces and database connectivity are not affected by the Web's existence.

Question 9

Usually,the native database connectivity interface provided by the vendor is not the only way to connect to a database; most current DBMS products support other database connectivity standards,the most common being ODBC.

Question 10

The Web server is the main hub through which all Internet services are accessed.

Question 11

A good API makes it easy to develop a program by providing all of the building blocks.

Question 12

The Web has helped create a new information dissemination standard.

Question 13

Many organizations rely on their IS departments to create universal data access architectures based on Internet standards.

Question 14

Most database professionals do not consider the DBMS connection to the Internet to be a critical element in IS development.

Question 15

The Internet is rapidly changing the way information is generated,accessed,and distributed.

Question 16

When an end user uses a Web browser to dynamically query a database,the client browser actually requests a Web page.

Question 17

An API (application programming interface)is defined as a set of routines,protocols,and tools for building software applications.

Question 18

The effects of bad database design,implementation,and management are multiplied in an environment in which transactions may be measured in hundreds of thousands per day,rather than in hundreds per day.

Question 19

Extending the Web server functionality implies that the Web server and the Web-to-database middleware will properly communicate with each other.

Question 20

The Web's ability to access data in databases (local or remote),the simplicity of the interface,and cross-platform functionality are at the core of changing the way the Internet generates,accesses,and distributes information.

Question 21

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

Question 22

____ 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

Question 23

ColdFusion is a Web application server.

Question 24

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

Question 25

ODBC works on the ____ operating system.

A) mainframe
B) UNIX
C) Windows
D) Linux

Question 26

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

Question 27

The browser's interpretation and presentation capabilities are sufficient to develop Web-based applications.

Question 28

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

Question 29

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

A) Command
B) DataReader
C) DataAdapter
D) DataSet

Question 30

Java applications are compiled and stored in the Web browser.

Question 31

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

Question 32

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

Question 33

____ 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

Question 34

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

Question 35

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

A) API
B) ODBC
C) DAO
D) RDO

Question 36

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

A) Command
B) DataReader
C) DataAdapter
D) DataSet

Question 37

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

Question 38

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

Question 39

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.

Question 40

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.

Question 41

Which of the following is a well-established Web server API?

A) CGIAPI
B) WSAPI
C) INPAPI
D) MWWAPI

Question 42

What is a disadvantage of using an API Web-server interface?

A) It is slower than CGI.
B) It is very inefficient because it uses DLLs.
C) You need to run an external program for each request.
D) An error can bring down the Web server.

Question 43

Client-side extensions are available in various forms,such as ____.

A) COBOL
B) Java and JavaScript
C) Visual Basic .NET
D) Visor.Net

Question 44

The Web browser's job is to ____ the HTML code that it receives from the Web server.

A) analyze
B) interpret
C) transform
D) save

Question 45

____ is a scripting language that allows Web authors to design interactive sites.

A) Visual Basic
B) HTML
C) JavaScript
D) Java

Question 46

A plug-in is ____.

A) executed on the server side
B) operating system specific
C) only available on a high-end workstation
D) used to connect to the database

Question 47

Of the following ,what is one of the benefits of hardware and software independence of Internet technologies?

A) Global access
B) Reduced costs of maintaining private networks
C) Savings in equipment and software acquisition
D) Multiple platform development

Question 48

Of the following,what is one of the benefits of rapid development at manageable costs for Internet technologies?

A) Platform independence and portability
B) Availability of multiple development tools
C) Reduced requirements
D) Reduced training time

Question 49

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

A) Web server
B) Web application server
C) Web-to-database middleware
D) Database application server

Question 50

When using an Oracle database,your Web-to-database middleware can connect to the database via ____.

A) ODBX
B) CGI
C) SQL*Net
D) SQL*Plus

Question 51

Which of the following is a well-defined Web-server interface?

A) Common Gateway Interface
B) Disk Operating System
C) Windows 98
D) AppleTalk

Question 52

There are currently ____ well-defined Web-server interfaces.

A) one
B) two
C) five
D) ten

Question 53

Each time the end user clicks a hyperlink,the browser generates a(n)____ GET page request that is sent to the designated Web server,using the TCP/IP Internet protocol.

A) HTML
B) browser
C) HTTP
D) API

Question 54

A ____ is an external application that is automatically invoked by the browser when needed.

A) Web client
B) plug-in
C) Web service
D) Web server

Question 55

What 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.

Question 56

A server-side extension ____.

A) provides its services to the Web server in a way that is totally transparent to the client browser
B) must be downloaded and installed in the client computer
C) is only available for servers running Windows 2000 or greater
D) is not required to access a database over the Internet

Question 57

Which of the following is a client-side extension?

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

Question 58

Different client browsers are not 100 percent interoperable,thus limiting ____.

A) scripting
B) functionality
C) flexibility
D) portability

Question 59

What is the last 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 Web browser requests a page from a Web server.
D) The Web-to-database middleware uses ODBC to connect to the database.

Question 60

A programming language typically used for CGI scripts is ____.

A) PERL
B) Java
C) SQL
D) JavaScript

Question 61

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

Question 62

DBMS vendors can publish ____ to facilitate data exchanges and the creation of data views from multiple applications-hierarchical,relational,object-oriented,object-relational,or extended-relational.

A) meta-dictionaries
B) database support
C) Web pages
D) XML databases

Question 63

What is a feature of a Web application server?

A) It is Microsoft's implementation of a superset of the SQL Access Group CLI standard for database access.
B) It is automatically invoked by the browser when needed.
C) It runs on the client machine,freeing server resources.
D) It provides an integrated development environment with session management and support for persistent application variables.

Question 64

____________________ are objects (applications or processes)that request and use data.

Question 65

A(n)____________________ is written in a programming language that is not compiled,but is interpreted and executed at run time.

Question 66

A(n)____________________ name is a unique name by which the data source will be known to ODBC,and therefore,to applications.

Question 67

The XML metalanguage allows the definition of new ____,such as ,to describe the data elements used in an XML document.

A) elements
B) tags
C) schemas
D) DTDs

Question 68

Every XML document has a ____.

A) root element
B) base tag
C) schema
D) DTD

Question 69

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

A) Access
B) ColdFusion/JRun
C) FoxPro
D) dBase

Question 70

ODBC,OLE-DB,and ADO.NET form the backbone of the ______________________________ architecture.

Question 71

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

Question 72

The ____ is an advanced data definition language that is used to describe the structure (elements,data types,relationship types,ranges,and default values)of XML data documents.

A) XHTML
B) HTML schema
C) DTD
D) XML schema

Question 73

ODBC is ____________________'s implementation of a superset of the SQL Access Group CLI.

Question 74

Microsoft's alternative to Java is ____.

A) Active X
B) JavaScript
C) VBScript
D) Visual C++

Question 75

A(n)____ file provides the composition of the database's logical model and defines the syntax rules for an XML document.

A) XMLD
B) HTML
C) DTD
D) meta

Question 76

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

A) A plug-in
B) A browser
C) Visual Basic
D) VBScript

Question 77

In the OLE-DB model,the ____________________ acts like a data consumer of the data provider and as a data provider for the data consumer (end-user application).

Question 78

____________________ are objects that manage the connection with a data source and provide data to the consumers.

Question 79

The Microsoft ____________________ framework is a component-based platform for developing distributed,heterogeneous,interoperable applications aimed at manipulating any type of data over any network under any operating system and any programming language.

Question 80

Using ____,you can extract data from an XML document and convert it into a text file.

A) XMLD
B) XSLT
C) DTD
D) XML schema