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. A search form is not associated with a ______
Structs
puts 12.chr
singular
model

2. a RESTful application uses ... to define an interaction with the data.
replace the word "scaffold" with the word "model"
puts 12.chr
HTTP methods (post - get - put - delete)
validates_numericality_of

3. Kinds of test you create yourself
helper method
integration test
HTTP methods (post - get - put - delete)
integration

4. A script that alters the structure of the underlying database
rake db:migrate
CamelCase
render :partial
migration

5. A special class whose only job is to have attributes and to hold data
nested classes
:controller
Structs
RAILS_ENV (RAILS_ENV=production)

6. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
puts 12.chr
rake db:migrate
<% form_for() %>
the page template

7. express error messages in a form (do |f|)
f.error_messages
:controller
attr_accessor
rake db:migrate

8. the second uri indicate
ruby make
put a $ sign in front. For example $x
the page template
:controller

9. express error messages in a form (do |f|)
errors.add_to_base("there was an error")
f.error_messages
.:format
the word "private"

10. edit routes
singular
include modulename
validates_numericality_of
config/routes.rb

11. controller (and table) names are _______
f.error_messages
Tweet.find(2).destroy
Embedded Ruby (ERb)
plural

12. The three kinds of tests are: unit and functional and _________ tests
model
integration
production
puts 12.chr

13. Unlike regular erb files partials' names begin with an ________
a responder object
underscore
always public
rake db:migrate

14. Command to run a migration
an object-relational mapping library
ActionPack
rake db:migrate
data migration (db/migrate/..._create_something.rb)

15. models have only ______names
RAILS_ENV (RAILS_ENV=production)
singular
<% form_for() %>
<=> operator

16. Rails' application framework
ActionPack
<%= yield %>
data migration (db/migrate/..._create_something.rb)
puts ?x where x is the character (not variable)

17. This method name indicates to rails that it should validate before saving/updating
validate
data migration (db/migrate/..._create_something.rb)
the page template
created_at

18. to run the latest migrations
Embedded Ruby (ERb)
helper method
replace the word "scaffold" with the word "model"
rake db:migrate

19. to get ascii value of a character
CamelCase
always public
Tweet.find(2).destroy
puts ?x where x is the character (not variable)

20. Methods by default are ________
validate
integration
RAILS_ENV (RAILS_ENV=production)
public

21. Converts database records to objects
#{1+1}
puts 12.chr
an object-relational mapping library
replace the word "scaffold" with the word "model"

22. Default Rails environments: development - test - ________
Embedded Ruby (ERb)
#{1+1}
production
underscore

23. Rails' object-relational mapping library
nested classes
migration
put a $ sign in front. For example $x
ActiveRecord

24. the second uri indicate
:controller
#{1+1}
Modules
nested classes

25. A special class whose only job is to have attributes and to hold data
puts ?x where x is the character (not variable)
always public
Structs
replace the word "scaffold" with the word "model"

26. to generate regular model code (not scaffolding)
rake db:migrate
Modules
replace the word "scaffold" with the word "model"
config/routes.rb

27. to get character from ascii value
validate
CamelCase
validate
puts 12.chr

28. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
runs its validators
helper method
<%= yield %>
the page template

29. tag that starts a form
put a $ sign in front. For example $x
<% form_for() %>
replace the word "scaffold" with the word "model"
rake db:migrate

30. to declare global variables
put a $ sign in front. For example $x
helper method
.:format
<% form_for() %>

31. Naming convention for classes
CamelCase
puts 12.chr
attr_accessor
puts ?x where x is the character (not variable)

32. All constants are _______
created_at
nested classes
Tweet.find(2).destroy
always public

33. edit routes
config/routes.rb
Embedded Ruby (ERb)
validate
migration

34. the model-generator command create the model class (app/models/something.rb) and the ____________
Structs
data migration (db/migrate/..._create_something.rb)
<=> operator
runs its validators

35. to check if an input is numeric
validates_numericality_of
runs its validators
the word "private"
HTTP methods (post - get - put - delete)

36. All constants are _______
.:format
always public
plural
the page template

37. Rails' object-relational mapping library
ActiveRecord
migration
production
Modules

38. to run the latest migrations
rake db:migrate
#{1+1}
validates_numericality_of
Embedded Ruby (ERb)

39. The "format" in "repond_to do |format|"? is a ______
helper method
puts ?x where x is the character (not variable)
RAILS_ENV (RAILS_ENV=production)
a responder object

40. h in in <%=h ... %> is a ______ that escapes special characters to sanitize malicious input
puts ?x where x is the character (not variable)
<% form_for() %>
<=> operator
helper method

41. Unlike regular erb files partials' names begin with an ________
plural
underscore
attr_accessor
singular

42. to check if an input is numeric
validates_numericality_of
public
created_at
.:format

43. declaring classes inside another class
ActionPack
migration
<% form_for() %>
nested classes

44. to destroy a row with id of 2 using only one line...
underscore
render :partial
Tweet.find(2).destroy
an object-relational mapping library

45. Before it saves or updates data a model object _______
production
<% form_for() %>
runs its validators
data migration (db/migrate/..._create_something.rb)

46. Naming convention for file names
underscores
plural
RAILS_ENV (RAILS_ENV=production)
integration test

47. the model-generator command create the model class (app/models/something.rb) and the ____________
model
plural
data migration (db/migrate/..._create_something.rb)
rake db:migrate

48. to include a module inside another class/file
production
include modulename
the word "private"
the page template

49. Rails' application framework
ActionPack
Modules
replace the word "scaffold" with the word "model"
render :partial

50. the three "magic columns" are:id - _______ - updated_at
singular
data migration (db/migrate/..._create_something.rb)
rails generate migration AddPhoneToTickets phone:string
created_at