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. controller (and table) names are _______
nested classes
plural
created_at
public

2. tag that starts a form
config/routes.rb
<=> operator
<% form_for() %>
put a $ sign in front. For example $x

3. This method name indicates to rails that it should validate before saving/updating
put a $ sign in front. For example $x
render :partial
validate
validates_numericality_of

4. All constants are _______
integration
data migration (db/migrate/..._create_something.rb)
always public
HTTP methods (post - get - put - delete)

5. Converts database records to objects
an object-relational mapping library
#{1+1}
data migration (db/migrate/..._create_something.rb)
the class

6. Methods by default are ________
<=> operator
Embedded Ruby (ERb)
public
ruby make

7. A script that alters the structure of the underlying database
helper method
migration
ActiveRecord
ActiveRecord

8. This is a comparison operator
#{1+1}
Tweet.find(2).destroy
<=> operator
always public

9. tag that starts a form
replace the word "scaffold" with the word "model"
<% form_for() %>
HTTP methods (post - get - put - delete)
underscores

10. The "format" in "repond_to do |format|"? is a ______
nested classes
a responder object
the class
config/routes.rb

11. to generate regular model code (not scaffolding)
an object-relational mapping library
replace the word "scaffold" with the word "model"
Structs
CamelCase

12. to specify a format like html or xml in routes.rb
polymorphism
production
.:format
the class

13. to declare global variables
put a $ sign in front. For example $x
public
the word "private"
HTTP methods (post - get - put - delete)

14. Long form of "rake" which can do more complex things like modifying the database structure and running testsis
validates_numericality_of
f.error_messages
Structs
ruby make

15. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
the page template
include modulename
attr_accessor
data migration (db/migrate/..._create_something.rb)

16. to declare global variables
Modules
always public
put a $ sign in front. For example $x
polymorphism

17. The three kinds of tests are: unit and functional and _________ tests
integration
attr_accessor
helper method
.:format

18. declaring classes inside another class
Embedded Ruby (ERb)
validate
rake db:migrate
nested classes

19. to get character from ascii value
puts 12.chr
always public
f.error_messages
<=> operator

20. the second uri indicate
underscore
:controller
the page template
include modulename

21. This method name indicates to rails that it should validate before saving/updating
CamelCase
the page template
validate
rake db:migrate

22. This variable changes the environment
puts 12.chr
RAILS_ENV (RAILS_ENV=production)
Modules
the word "private"

23. You add the filter code right after the line introducing __________ in the controller
f.error_messages
runs its validators
config/routes.rb
the class

24. Converts database records to objects
#{1+1}
always public
an object-relational mapping library
#{1+1}

25. a RESTful application uses ... to define an interaction with the data.
HTTP methods (post - get - put - delete)
a responder object
.:format
:controller

26. express error messages in a form (do |f|)
f.error_messages
always public
plural
<=> operator

27. express error messages in a form (do |f|)
underscores
runs its validators
replace the word "scaffold" with the word "model"
f.error_messages

28. to specify a format like html or xml in routes.rb
<=> operator
polymorphism
always public
.:format

29. Rails' application framework
ActionPack
puts 12.chr
Embedded Ruby (ERb)
CamelCase

30. Default Rails environments: development - test - ________
production
integration test
validate
ActiveRecord

31. Naming convention for classes
runs its validators
validate
:controller
CamelCase

32. A search form is not associated with a ______
model
ruby make
f.error_messages
an object-relational mapping library

33. Unlike regular erb files partials' names begin with an ________
polymorphism
errors.add_to_base("there was an error")
underscore
Structs

34. the three "magic columns" are:id - _______ - updated_at
created_at
runs its validators
rake db:migrate
Modules

35. to add an error (called "there was an error") in the validate method
attr_accessor
helper method
errors.add_to_base("there was an error")
ActionPack

36. the three "magic columns" are:id - _______ - updated_at
created_at
f.error_messages
config/routes.rb
RAILS_ENV (RAILS_ENV=production)

37. models have only ______names
render :partial
singular
migration
always public

38. Before it saves or updates data a model object _______
production
the page template
runs its validators
plural

39. Allows instance variables to be accessible outside the class by defining = operators for variables
nested classes
validate
attr_accessor
validates_numericality_of

40. It generates web pages from page templates
Embedded Ruby (ERb)
Tweet.find(2).destroy
CamelCase
attr_accessor

41. These create namespaces
errors.add_to_base("there was an error")
.:format
Modules
Tweet.find(2).destroy

42. Long form of "rake" which can do more complex things like modifying the database structure and running testsis
ruby make
Tweet.find(2).destroy
an object-relational mapping library
runs its validators

43. the second uri indicate
:controller
Structs
config/routes.rb
ruby make

44. the concept of writing code that can work with objects of multiple types and classes at once
created_at
put a $ sign in front. For example $x
polymorphism
ActionPack

45. The "format" in "repond_to do |format|"? is a ______
helper method
Structs
always public
a responder object

46. to call a partial
migration
runs its validators
render :partial
data migration (db/migrate/..._create_something.rb)

47. Default Rails environments: development - test - ________
production
render :partial
<% form_for() %>
Structs

48. A special class whose only job is to have attributes and to hold data
Tweet.find(2).destroy
Structs
the word "private"
puts ?x where x is the character (not variable)

49. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
the page template
production
validates_numericality_of
integration test

50. Kinds of test you create yourself
#{1+1}
integration test
underscore
put a $ sign in front. For example $x