Test your basic knowledge |

Ruby On Rails Basics

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Converts database records to objects
nested classes
an object-relational mapping library
the word "private"
Tweet.find(2).destroy

2. Kinds of test you create yourself
underscores
RAILS_ENV (RAILS_ENV=production)
integration test
rake db:migrate

3. Naming convention for file names
Tweet.find(2).destroy
helper method
underscores
rake db:migrate

4. All constants are _______
always public
underscores
rake db:migrate
production

5. expression that all layouts have
the class
validate
polymorphism
<%= yield %>

6. These create namespaces
Modules
render :partial
f.error_messages
ActiveRecord

7. to check if an input is numeric
puts 12.chr
Structs
validates_numericality_of
underscore

8. The three kinds of tests are: unit and functional and _________ tests
migration
<=> operator
integration
ActiveRecord

9. It generates web pages from page templates
replace the word "scaffold" with the word "model"
ActiveRecord
RAILS_ENV (RAILS_ENV=production)
Embedded Ruby (ERb)

10. to run the latest migrations
rake db:migrate
rails generate migration AddPhoneToTickets phone:string
model
validate

11. to include a module inside another class/file
include modulename
the class
:controller
underscore

12. to call a partial
created_at
#{1+1}
render :partial
f.error_messages

13. Default Rails environments: development - test - ________
the class
rails generate migration AddPhoneToTickets phone:string
Structs
production

14. Rails' application framework
ActionPack
<%= yield %>
puts 12.chr
include modulename

15. Naming convention for file names
CamelCase
RAILS_ENV (RAILS_ENV=production)
underscores
config/routes.rb

16. A special class whose only job is to have attributes and to hold data
created_at
underscores
Structs
underscore

17. to insert "1 + 1" into a string
Structs
#{1+1}
production
integration test

18. controller (and table) names are _______
include modulename
plural
rake db:migrate
Embedded Ruby (ERb)

19. tag that starts a form
<% form_for() %>
ActiveRecord
errors.add_to_base("there was an error")
#{1+1}

20. These create namespaces
Structs
migration
public
Modules

21. A special class whose only job is to have attributes and to hold data
Structs
created_at
created_at
always public

22. This is a comparison operator
integration test
<=> operator
render :partial
#{1+1}

23. a RESTful application uses ... to define an interaction with the data.
migration
Modules
HTTP methods (post - get - put - delete)
put a $ sign in front. For example $x

24. It generates web pages from page templates
Embedded Ruby (ERb)
<% form_for() %>
#{1+1}
f.error_messages

25. to get character from ascii value
ruby make
rake db:migrate
puts 12.chr
singular

26. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
migration
Modules
an object-relational mapping library
the page template

27. This is a comparison operator
the word "private"
puts ?x where x is the character (not variable)
<=> operator
runs its validators

28. The "format" in "repond_to do |format|"? is a ______
integration
a responder object
polymorphism
RAILS_ENV (RAILS_ENV=production)

29. to run the latest migrations
created_at
errors.add_to_base("there was an error")
rake db:migrate
underscore

30. declaring classes inside another class
.:format
nested classes
f.error_messages
model

31. the second uri indicate
:controller
rails generate migration AddPhoneToTickets phone:string
RAILS_ENV (RAILS_ENV=production)
always public

32. Command to run a migration
underscore
include modulename
rails generate migration AddPhoneToTickets phone:string
rake db:migrate

33. A search form is not associated with a ______
model
.:format
rake db:migrate
include modulename

34. Command to run a migration
integration test
public
rake db:migrate
the class

35. to get character from ascii value
f.error_messages
replace the word "scaffold" with the word "model"
errors.add_to_base("there was an error")
puts 12.chr

36. to get ascii value of a character
RAILS_ENV (RAILS_ENV=production)
puts ?x where x is the character (not variable)
render :partial
created_at

37. to create a migration that adds a "phone" field to the "tickets" table
f.error_messages
created_at
puts 12.chr
rails generate migration AddPhoneToTickets phone:string

38. to declare global variables
Embedded Ruby (ERb)
validate
<%= yield %>
put a $ sign in front. For example $x

39. Unlike regular erb files partials' names begin with an ________
include modulename
underscore
Tweet.find(2).destroy
<% form_for() %>

40. Naming convention for classes
Tweet.find(2).destroy
CamelCase
public
attr_accessor

41. This variable changes the environment
.:format
Structs
rails generate migration AddPhoneToTickets phone:string
RAILS_ENV (RAILS_ENV=production)

42. to include a module inside another class/file
attr_accessor
include modulename
helper method
runs its validators

43. to insert "1 + 1" into a string
:controller
puts 12.chr
#{1+1}
<% form_for() %>

44. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
public
the page template
ActionPack
runs its validators

45. Converts database records to objects
Tweet.find(2).destroy
errors.add_to_base("there was an error")
Modules
an object-relational mapping library

46. This method name indicates to rails that it should validate before saving/updating
helper method
migration
migration
validate

47. models have only ______names
singular
public
<%= yield %>
the class

48. You add the filter code right after the line introducing __________ in the controller
the class
migration
public
data migration (db/migrate/..._create_something.rb)

49. The "format" in "repond_to do |format|"? is a ______
helper method
a responder object
Tweet.find(2).destroy
singular

50. Kinds of test you create yourself
render :partial
Modules
integration test
runs its validators