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. Naming convention for classes
Modules
validate
Modules
CamelCase

2. Default Rails environments: development - test - ________
created_at
production
integration
underscore

3. Methods by default are ________
public
a responder object
attr_accessor
polymorphism

4. to run the latest migrations
HTTP methods (post - get - put - delete)
rake db:migrate
ActionPack
<=> operator

5. Long form of "rake" which can do more complex things like modifying the database structure and running testsis
#{1+1}
public
put a $ sign in front. For example $x
ruby make

6. a RESTful application uses ... to define an interaction with the data.
:controller
ActiveRecord
created_at
HTTP methods (post - get - put - delete)

7. A script that alters the structure of the underlying database
migration
replace the word "scaffold" with the word "model"
production
config/routes.rb

8. the three "magic columns" are:id - _______ - updated_at
created_at
Modules
ruby make
validate

9. models have only ______names
singular
#{1+1}
ActiveRecord
.:format

10. h in in <%=h ... %> is a ______ that escapes special characters to sanitize malicious input
validates_numericality_of
helper method
render :partial
migration

11. This is a comparison operator
Modules
<=> operator
the word "private"
model

12. A search form is not associated with a ______
render :partial
Tweet.find(2).destroy
model
data migration (db/migrate/..._create_something.rb)

13. a RESTful application uses ... to define an interaction with the data.
HTTP methods (post - get - put - delete)
Modules
validate
integration test

14. the second uri indicate
nested classes
:controller
rake db:migrate
underscores

15. This variable changes the environment
RAILS_ENV (RAILS_ENV=production)
rake db:migrate
puts ?x where x is the character (not variable)
helper method

16. You add the filter code right after the line introducing __________ in the controller
migration
the class
underscore
#{1+1}

17. A special class whose only job is to have attributes and to hold data
the class
an object-relational mapping library
model
Structs

18. to get character from ascii value
nested classes
config/routes.rb
puts 12.chr
rake db:migrate

19. Rails' object-relational mapping library
the page template
production
Structs
ActiveRecord

20. the concept of writing code that can work with objects of multiple types and classes at once
integration test
<% form_for() %>
polymorphism
production

21. Command to run a migration
puts ?x where x is the character (not variable)
rake db:migrate
validates_numericality_of
migration

22. Methods by default are ________
public
the page template
ActionPack
polymorphism

23. expression that all layouts have
rails generate migration AddPhoneToTickets phone:string
replace the word "scaffold" with the word "model"
ruby make
<%= yield %>

24. to specify a format like html or xml in routes.rb
integration test
ActionPack
singular
.:format

25. Kinds of test you create yourself
integration test
helper method
render :partial
<=> operator

26. tag that starts a form
rake db:migrate
ActionPack
always public
<% form_for() %>

27. edit routes
production
render :partial
config/routes.rb
validates_numericality_of

28. This method name indicates to rails that it should validate before saving/updating
the word "private"
ruby make
validate
integration

29. to add an error (called "there was an error") in the validate method
RAILS_ENV (RAILS_ENV=production)
helper method
integration
errors.add_to_base("there was an error")

30. Naming convention for file names
plural
integration test
an object-relational mapping library
underscores

31. The "format" in "repond_to do |format|"? is a ______
validates_numericality_of
underscore
a responder object
render :partial

32. to include a module inside another class/file
put a $ sign in front. For example $x
plural
CamelCase
include modulename

33. Rails' application framework
ActionPack
puts 12.chr
integration
RAILS_ENV (RAILS_ENV=production)

34. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
the page template
Modules
runs its validators
Structs

35. the second uri indicate
:controller
validates_numericality_of
runs its validators
created_at

36. Before it saves or updates data a model object _______
ruby make
runs its validators
public
ruby make

37. A script that alters the structure of the underlying database
f.error_messages
migration
include modulename
<% form_for() %>

38. All constants are _______
replace the word "scaffold" with the word "model"
rails generate migration AddPhoneToTickets phone:string
Modules
always public

39. Unlike regular erb files partials' names begin with an ________
<% form_for() %>
render :partial
singular
underscore

40. Before it saves or updates data a model object _______
puts ?x where x is the character (not variable)
runs its validators
rake db:migrate
model

41. to insert "1 + 1" into a string
puts 12.chr
#{1+1}
migration
helper method

42. to declare global variables
put a $ sign in front. For example $x
Tweet.find(2).destroy
migration
.:format

43. the concept of writing code that can work with objects of multiple types and classes at once
a responder object
always public
ActionPack
polymorphism

44. Command to run a migration
the class
production
rake db:migrate
public

45. the three "magic columns" are:id - _______ - updated_at
include modulename
HTTP methods (post - get - put - delete)
validates_numericality_of
created_at

46. This is a comparison operator
<%= yield %>
ActionPack
<=> operator
nested classes

47. Naming convention for file names
migration
singular
underscores
polymorphism

48. The three kinds of tests are: unit and functional and _________ tests
integration
puts ?x where x is the character (not variable)
:controller
singular

49. Allows instance variables to be accessible outside the class by defining = operators for variables
errors.add_to_base("there was an error")
the page template
validates_numericality_of
attr_accessor

50. Unlike regular erb files partials' names begin with an ________
Modules
created_at
underscore
public