Deck 23: Web App Development With Aspnet in Visual Basic

Question 1

The file that contains the programming logic of a Web Form is called the _________ file.

A) logic
B) code
C) code-aside
D) code-behind

Answer 1

D

Question 2

The pathname to a file on a web server specifies the location of an actual directory on the web server's file system.

Answer 2

False

Question 3

A URL contains information that directs a browser to the resource that the user wishes to access. Computers that run __________ software make such resources available.

A) DNS
B) web client
C) web server
D) HTP

Answer 3

C

Question 4

In a URL, the hostname is the name of the server on which the resource resides. The remainder of a URL specifies the location and name of a requested resource. For security reasons, the location is normally a __________ directory, which the server translates into a real location on the server.

A) file
B) implied
C) virtual
D) implicit

Question 5

An IP address is:

A) an internet protocol address
B) a set of numbers distinguishing computers
C) a value that identifies a server
D) All of the above

Question 6

When given a URL, a web browser uses HTTP to retrieve and display the web page found at that address.

Question 7

The host is the computer that requests a web page for display.

Question 8

The information tier typically stores data in a(n) _________.

A) DataGrid
B) XML document
C) database management system
D) None of the above

Question 9

The file that contains the code for a Web form is a web-code file.

Question 10

URIs (Uniform Resource Identifiers) identify documents on the Internet. URIs that start with http:// are called __________.

A) DNSs
B) HTTPs
C) ASPs
D) URLs

Question 11

_________ applications divide functionality into separate logical groupings.

A) Internet
B) Multi-tier
C) Logical
D) None of the above.

Question 12

For ASP .NET applications, Internet Information Ser vices is usually the web server.

Question 13

Web forms are customized by programmers by adding Web _________ such as labels and buttons.

A) features
B) controls
C) servers
D) None of the above

Question 14

Visual Studio creates a class for every ASPX file it creates in a .NET language.

Question 15

A _______ is an address indicating the location of a resource on the web.

A) DNS
B) URL
C) ASPX
D) None of the above.

Question 16

________ is an Internet standard that specifies the way in which data must be formatted so that programs can interpret the data correctly.

A) IIS
B) DNS
C) MIME
D) None of the above.

Question 17

Web Forms use the same controls as Windows Forms.

Question 18

A web server translates a hostname into an IP address.

Question 19

Web Form files have the extension:

A) )wbfm
B) )wasp
C) )aspc
D) )aspx

Question 20

Microsoft's _________ technology is used for web-based application develop ment.

A) ASP .NET
B) WEB .NET
C) INTER .NET
D) All of the above

Question 21

An Image web control's __________ property specifies the location of the image to display.

A) ImageLocation
B) ImageUrl
C) ImageSource
D) ImageDisplay

Question 22

A simple Web Form consists of two related files, an ASPX file and a(n) _______.

A) HTML document
B) database file
C) Visual Basic code-behind file
D) None of the above.

Question 23

Namespace _________ contains classes for creating web applications and controls.

A) System.Web.Creation
B) System.ASP
C) System.Web.GUI
D) System.Web.UI

Question 24

A DropDownList web control is similar to the Windows Forms __________control, but doesn't allow users to type text.

A) DropBox
B) ListBox
C) DropDownBox
D) ComboBox

Question 25

A __________web control adds a hyperlink to a Web Form. The Navigate-Url property specifies the resource or web page that will be requested when the user clicks the HyperLink.

A) Navigate-Url
B) Hyper-Link
C) Link
D) HyperLink

Question 26

Each tier of a multi-tier application must reside on a separate machine.

Question 27

A __________control provides a series of radio buttons from which the user can select only one.

A) RadioButtonList
B) RadioButtons
C) SingleSelect
D) RadioButtonDropDown

Question 28

Business rules dictate how clients can and cannot access application data and how applications process data.

Question 29

An instance of the web page is re-compiled each time the ASPX file is requested by a user.

Question 30

The top tier is the application's user interface which gathers input and displays output.

Question 31

The document type declaration specifies the document element name.

Question 32

The code-behind file is a(n) _______ class.

A) partial
B) full
C) abstract
D) Overridable

Question 33

ASP.NET comments start with the single-quote character '.

Question 34

The asp: tag prefix means that ________.

A) the control is a Windows Forms control
B) the control is an ASP .NET web control
C) the variable is an ASP variable
D) None of the above.

Question 35

Controls and other elements are placed on a Web Form sequentially.

Question 36

When a Web Form object is ready for garbage collection, the ________ event occurs.

A) GC
B) Unload
C) Dispose
D) GCollect

Question 37

Relative positioning specifies that controls will be located exactly where they are dragged and dropped onto the form by the programmer.

Question 38

Web applications are multi-tier applications.

Question 39

The information tier holds the data for an application.

Question 40

The middle tier of a multi-tier application processes client requests and maintains the reliability of the stored data.

Question 41

Cookies created by one server can be accessed by any server that wishes to access them.

Question 42

ASP.NET pages are often designed so that the current page __________when the user submits the form; this enables the program to receive input, process it as necessary and display the results in the same page when it's loaded the second time.

A) terminates
B) unloads
C) recedes
D) reloads

Question 43

Submitting a web form is known as a__________ operation.

A) post
B) submit
C) present
D) postback

Question 44

A Web Form's Load event occurs each time the page loads into a web browser. The event handler for this event is Page.Load.

Question 45

A ________ is a piece of data stored in a small text file to maintain information about the client during and between browser sessions.

A) tracking file
B) cookie
C) web log
D) virtual record

Question 46

The first time a client connects to a server for an web application that uses sessions, the server creates a unique ________ that can later be compared to others in the server's memory in order to identify the client.

A) session ID
B) HttpSessionState object
C) cookie
D) None of the above.

Question 47

When the page is sent to the client, the validator is converted into HTML that performs the validation in the client web browser.

Question 48

Hidden form elements can be used with URL rewriting to implement session-tracking.

Question 49

A ________ checks whether data entered into another web control is cor rect or in the proper format.

A) validation control
B) format control
C) user control
D) certification control

Question 50

If data for a certain field is required for the user to continue, the programmer must manually insert tests for data in the VB code-behind file.

Question 51

If a cookie has no expiration date then it will never expire.

Question 52

The EnableSessionState, when set to true, allows the form to use session tracking.

Question 53

You must write your own regular expressions to have Visual Web Developer validate e-mail addresses, phone numbers, etc.

Question 54

HTTP is a _________ protocol: it does not support persistent connections.

A) connectionful
B) connectionless
C) stateless
D) stateful

Question 55

Class Page's Valid property returns True if validation succeeded.

Question 56

A validator control ensures that the entered information is in the correct format.

Question 57

Server-side Web Form validation must be implemented programmatically.

Question 58

Visual Basic provides session-tracking capabilities in class __________.

A) Session
B) SessionTracking
C) HttpSessionState
D) SessionState

Question 59

Cookies exist on a user's computer until the user decides to delete them.

Question 60

Some client browsers might not support scripting or the user might disable it. For this reason, you should always perform validation on the server.

Question 61

Cookies generally provide more functionality than HttpSessionState objects.

Question 62

Each _________ in a GridView is represented as a BoundField.

A) row
B) column
C) table
D) database

Question 63

A ________ ASP.NET data control displays data on a web form in a tabular format.

A) TabView
B) GridView
C) TabFormat
D) GridFormat

Question 64

GridView method Refresh refreshes the information displayed in the GridView.

Question 65

An ASP.NET expression, delimited by < and >, can be used to access a connection string stored in an application's Web.config file.

Question 66

A database used by an ASP.NET website should be located in the project's App_Data folder.

Question 67

A LinqDataSource allows an application to interact with a database via LINQ.