Deck 15: Database Connectivity and Web Technologies

Question 1

The Common Gateway Interface (CGI)is a newer web server interface standard that is much more efficient and faster than a dynamic link library (DLL).

Answer 1

False

Question 2

Having a web-based database interface eliminates the design and implementation issues of a database system.

Answer 2

False

Question 3

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

Answer 3

False

Question 4

The benefits of the web as a data access platform arise from its cross-platform functionality and the simplicity of its interface.

Question 5

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

Question 6

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

Question 7

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 8

Among the three levels of compliance of the ODBC API standards,Level-1 provides support for procedural SQL and cursors.

Question 9

An application programming interface (API)uses script files that perform specific functions based on the client's parameters that are passed to the web server.

Question 10

In the database query scenario,the web server generates the webpage contents before it sends the page to the client web browser.

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

The browser's interpretation and presentation capabilities are sufficient to develop web­based applications.

Question 16

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

Question 17

The use of HTML does not equip a web browser with computational abilities beyond formatting output text and accepting form field inputs.

Question 18

The effects of bad database design,implementation,and management are magnified in an environment in which the number of transactions is less than one hundred.

Question 19

A document type definition (DTD)can be referenced by many Extensible Markup Language (XML)documents of the same type.

Question 20

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

Question 21

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

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

Question 22

In a document type definition (DTD)file,a plus (+)symbol beside an element indicates that it is an optional child element within its parent.

Question 23

A(n)can use a shared connection to the database instead of creating a new one every time.

A)DLL
B)API
C)web browser
D)HTTP GET request

Question 24

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

A)ODBC
B)JDBC
C)OLE-DB
D)AD.NET

Question 25

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

Question 26

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 27

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

A)MS-DB
B)OLE-DB
C)COM-DB
D)ODBC

Question 28

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

Question 29

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

A)ODBC API
B)DLL
C)ODBC driver
D)driver manager

Question 30

Cloud services allow any organization to quickly and economically add information technology services to its IT portfolio.

Question 31

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

A)a web server
B)a web application middleware
C)web-to-database middleware
D)a database application server

Question 32

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

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

Question 33

is an object-oriented programming language developed by Sun Microsystems that runs on top of web browser software.

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

Question 34

In the ADO.NET framework,the object is the in-memory representation of the data in the database.

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

Question 35

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

A)Common Gateway Interface
B)Tiny Internet Interface
C)Windows NT
D)Command Line Interface

Question 36

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.

Question 37

The main disadvantage of using CGI scripts is that:

A)they cause a resource bottleneck since they have to execute separately for each user request.
B)they are specific to the web server and to the operating system,thus being platform dependent.
C)an error in one script can damage and bring down the web server completely.
D)they do not have the capability to process forms or prepare outputs based on form data.

Question 38

In the ADO.NET framework,the object contains the actual SQL code or a stored procedure call to be run by the database.

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

Question 39

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

A)Elementary
B)Basic
C)Core
D)Level-0

Question 40

ODBC works on the operating system.

A)Kronos
B)UNIX
C)Windows
D)Mac

Question 41

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

Question 42

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

A)HTML
B)XML
C)HTTP GET
D)API

Question 43

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

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

Question 44

Every XML document has a .

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

Question 45

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

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

Question 46

The web browser's job is to interpret the HTML code that it receives from a web server and to:

A)develop web-based applications.
B)display it in a standard formatted way.
C)perform immediate data entry validation.
D)extract details,such as order data,from it.

Question 47

Which of the following is a characteristic of the XML metalanguage?
A)It is concerned with the way data are displayed.

A)You can use the // symbol for entering a comment in the XML document.
B)It allows the definition of new tags.
B)It can be used as a replacement of HTML.

Question 48

You must use plug-ins and other client-side extensions:

A)to create an open communication line between a server and its clients.
B)to eliminate the need for running external programs for each client request.
C)to improve processing capabilities of a browser.
D)to create dynamic web search pages.

Question 49

cloud is a type of cloud infrastructure that is built by a third-party organization to sell cloud services to the general public.

A)Community
B)Public
C)Exclusive
D)Private

Question 50

__________ 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)Cloud computing
B)OBDC
C)SQL data services
D)database middleware

Question 51

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

A)It is slower than CGI scripts.
B)It is inefficient because it uses DLLs.
C)An external program needs to run for each user request.
D)An API error can bring down the entire web server.

Question 52

In the category,the cloud service provider offers the capability to build and deploy consumer-created applications using the provider's cloud infrastructure.

A)Application as a Service (AaaS)
B)Infrastructure as a Service (IaaS)
C)Software as a Service (SaaS)
D)Platform as a Service (PaaS)

Question 53

Open Database Connectivity (ODBC),a superset of the SQL Access Group Call Level Interface (CLI),is implemented by .

Question 54

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

Question 55

Which of the following is true 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 security and authentication of users through user IDs and passwords.

Question 56

Which of the following is a client-side extension?

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

Question 57

_____ is a scripting language that allows web authors to design interactive sites.

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

Question 58

Among client-side extensions,is a Microsoft specification for writing programs that run inside the Internet Explorer browser.

A)COBOL
B)ActiveX
C)JavaScript
D)Visor.Net

Question 59

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

A)XML
B)SQL
C)Visual Basic
D)VBScript

Question 60

The _____ is an advanced data definition language that is used to describe the structure of XML data documents.

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

Question 61

What is JavaScript? How does it work?

Question 62

XML is used to create _____________ vocabularies for entire industries.

Question 63

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

Question 64

,or transactions done over the Internet,enables all types of organizations to sell products and services to a global market.

Question 65

In the context of OLE-DB,a is an object (application or process)that requests and uses data.

Question 66

XML tags must be well formed,that is,each opening tag must have a corresponding tag.

Question 67

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

Question 68

A(n)provides limited additional semantic value to XML,such as data type support or data validation rules.

Question 69

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 70

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 71

What is a server-side extension? Explain.

Question 72

XML is derived from the ,an international standard for the publication and distribution of highly complex technical documents.

Question 73

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

Question 74

is an application programming interface that allows a Java program to interact with a wide range of data sources (relational databases,tabular data sources,spreadsheets,and text files).

Question 75

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

Question 76

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

Question 77

APIs are faster than scripts because the code resides in memory and there is no need to run an external program for each request.

Question 78

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

Question 79

webpages are at the heart of current generation websites.

Question 80

A DBMS that supports exchanges can integrate with external systems such as the web,mobile data,and legacy systems,thus enabling the creation of new types of systems.