Deck 11: Ruby on Rails Web Development

Question 1

The official Ruby on Rails website is located at http://www.myruby.com .

Answer 1

False

Question 2

When Ruby on Rails is installed on your computer, so is a small web server called WEBrick, which you use as your Ruby on Rails development environment.

Answer 2

True

Question 3

SQLite is a low cost database management system, which you can download and install for a small fee.

Answer 3

False

Question 4

Most application code is contained in its controllers.

Question 5

Models are implemented via Ruby on Rails' Active Record library.

Question 6

By default, all Ruby on Rails applications are configured to work with the SQLite database management system.

Question 7

One limitation of Ruby on Rails applications is that they are limited to a small subset of supported database management systems.

Question 8

The easiest way to download and install SQLite is to use RubyGems.

Question 9

The MVC architecture facilitates DRY programming and keeps the programming logic that controls application execution separate from the programming logic that manages the presentation of data.

Question 10

By applying the principle of DRY, Ruby on Rails applications are created based on a set of assumptions and common standards, that result in general-purpose applications that can be further customized as necessary.

Question 11

Ruby on Rails uses models to process data and manage the flow of data communication with web browsers.

Question 12

The Ruby on Rails framework is a collection of programs that provides everything needed to develop database-driven web applications.

Question 13

By applying the principle of Convention Over Configuration, Ruby on Rails applications are designed based on the idea that you should avoid writing the same program code more than once within a web application.

Question 14

Views are responsible for performing data validation.

Question 15

Views are programs responsible for an application's user interface, presenting data in a predefined format.

Question 16

Active Record provides Ruby on Rails with database independence, allowing it to work with all major database management systems.

Question 17

Ruby on Rails includes a collection of scripts used to automate the creation of web-based applications.

Question 18

The Action View library defines presentation templates that are used in displaying data.

Question 19

Models are Ruby on Rails programs that manage the relationship between controllers and the application's database

Question 20

One limitation of Ruby on Rails is that you cannot customize its applications after they have been created.

Question 21

____ are programs responsible for an application's user interface, presenting data in a predefined format.

A) Views
B) Models
C) Controllers
D) Records

Question 22

You can customize a Ruby on Rails application in a variety of ways, including which of the following?

A) Edit your application's HTML code
B) Modify the CSS style sheets to alter the application's appearance
C) Change the application's database management system
D) All of the above

Question 23

The MVC architecture facilitates the ____ principle by keeping the programming logic that controls application execution separate from the programming logic that manages the presentation of data.

A) Convention over Configuration
B) Restful
C) DRY
D) Stateful

Question 24

The easiest way to install Ruby on Rails on a computer running Windows is through the fxri-interactive Ruby and Help Console.

Question 25

Railties provide a framework for adding email services to Ruby on Rails applications, enabling applications to send email and receive email.

Question 26

____ tie together different models and views, processing application input and output.

A) Models
B) Views
C) Controllers
D) Records

Question 27

____ provides a framework for adding email services to Ruby on Rails applications, enabling applications to send email and receive email.

A) Action Mailer
B) Active Resource
C) Railties
D) Active Support

Question 28

Ruby on Rails is built on a MVC architecture, which organizes your applications into which three primary components?

A) Models, views, and controllers
B) Models, views and containers
C) Makers, views, and controllers
D) Markers, view, and containers

Question 29

____ are Ruby on Rails programs that manage the relationship between controllers and the application's database.

A) Views
B) Models
C) Controllers
D) Records

Question 30

To work with Ruby on Rails, you need a basic understanding of which of the following?

A) HTML
B) Cascading style sheets (CSS)
C) Database management systems
D) All of the above

Question 31

The data displayed by a view is updated based on the actions of ____.

A) Views
B) Models
C) Controllers
D) Records

Question 32

Active Resource manages the connections between application objects and database tables, mapping local application objects to web resources.

Question 33

Railties provide the program code (help scripts) that actually creates Ruby on Rails applications and ties everything together.

Question 34

Which of the following commands can be used to keep Ruby on Rails up to date?

A) gem update
B) gem update rails
C) gem get rails
D) rubygem update rails

Question 35

Which of the following commands is used to start the WEBrick web server?

A) script/start
B) start/script
C) script/server
D) script/webrick

Question 36

Controllers are Ruby on Rails programs that manage the relationship between models and an application's database.

Question 37

Views are implemented via Ruby on Rails' ____ library, which defines presentation templates that are used in displaying data.

A) Action View
B) Active Record
C) Action Controller
D) Action Record

Question 38

Which of the following URLs can be used to access your computer's locally installed web server?

A) http://127.0.0.1:3000
B) http://127.0.0.0:2000
C) http://127.1.1.1.3000
D) http://127.0.0.1:1000

Question 39

____ Manages the connections between application objects and database tables, mapping local application objects to web resources.

A) Action Mailer
B) Active Resource
C) Railties
D) Active Support

Question 40

____ help maintain a separation between an application's programming logic and the presentation of its data.

A) Views
B) Models
C) Controllers
D) Records

Question 41

To determine if Ruby Gems is installed, issue the command ____.

A) gem -i
B) gem -v
C) gem -r
D) RubyGems -v

Question 42

The WEBrick web server monitors which of the following ports?

A) 1000
B) 2000
C) 3000
D) 5000

Question 43

____ is a library of classes used by Ruby on Rails programs.

A) Action Mailer
B) Active Resource
C) Railties
D) Active Support

Question 44

Ruby on Rails works with which of the following types of database management systems?

A) SQLite
B) MySQL
C) Oracle
D) All of the above

Question 45

____ is a Ruby script that creates a Ruby on Rails project, including its directory structure and its core application files.

A) rails
B) reals
C) RubyGems
D) gems

Question 46

____ is a small database management system that is automatically installed on Mac OS X 10.5 machines.

A) MySql
B) Oracle
C) DB2
D) SQLite

Question 47

Ruby on Rails can work with any web server. In addition, it comes with its own web server named ____.

A) WEBrick
B) Webserver
C) Apache
D) WEBsvr

Question 48

____ provides the program code (help scripts) that actually creates Ruby on Rails applications and ties everything together.

A) Action Mailer
B) Active Resource
C) Railties
D) Active Support

Question 49

____ automates the download and installation of Ruby on Rails programs and related development software tools.

A) RubyInstaller
B) Gems
C) RubyGems
D) RubyMgr

Question 50

____ is a database management system, used by Ruby on Rails by default, which is easily installed using RubyGems.

A) SQLite
B) MySQL
C) Oracle
D) All of the above

Question 51

Almost every Ruby on Rails application involves the storage and retrieval of information using a ____.

A) web server
B) database
C) log file
D) data file