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Test your basic knowledge |
Enterprise Application Structure Patterns
Start Test
Study First
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. An object that acts as a Gateway to a single record in a data source. There is one instance per row.
Registry
Optimistic Offline Lock
Row Data Gateway
Layer Supertype
2. Represents an inheritance hierarchy of classes with one table per concrete class in the hierarchy.
Concrete Table Inheritance
Implicit Lock
Lazy Load
Two Step View
3. Allows framework or layer supertype code to acquire offline locks.
Record Set
Repository
Inheritance Mappers
Implicit Lock
4. Mediates between the domain and data mapping layers using a collection-like interfacefor accessing domain objects.
Concrete Table Inheritance
Repository
Optimistic Offline Lock
Single Table Inheritance
5. Defines an application's boundary with a layer of services that establishes a set of available operations and coordinates the application's response in each operation.
Optimistic Offline Lock
Implicit Lock
Mapper
Service Layer
6. Maps an object into several fields of another object's table.
Database Session State
Table Module
Two Step View
Embedded Value
7. A type that acts as the supertype for all types in its layer.
Database Session State
Remote Facade
Data Transfer Object
Layer Supertype
8. An object that sets up a communication between two independent objects.
Mapper
Lazy Load
Data Transfer Object
Transaction Script
9. Prevents conflicts between concurrent business transactions by detecting a conflict and rolling back the transaction.
Concrete Table Inheritance
Identity Map
Data Mapper
Optimistic Offline Lock
10. A subclass that provides special behavior for particular cases.
Implicit Lock
Optimistic Offline Lock
Special Case
Gateway
11. Prevents conflicts between concurrent business transactions by allowing only one business transaction at a time to access data.
Unit of Work
Optimistic Offline Lock
Pessimistic Offline Lock
Layer Supertype
12. Maintains a list of objects affected by a business transaction and coordiantes the writing out of changes and the resolution of concurrency problems.
Embedded Value
Value Object
Table Data Gateway
Unit of Work
13. A small simple object - like money or a date range - whose equality isn't based on identity.
Service Stub
Identity Field
Value Object
Association Table Mapping
14. An object that doesn't contain all of the data you need but knows how to get it.
Client Session State
Value Object
Lazy Load
Application Controller
15. Turns domain data into HTML in two steps: first by forming some kind of logical page - then rendering the logical page into HTML.
Money
Two Step View
Embedded Value
Table Data Gateway
16. An object that acts as a Gateway to a database table. One instance handles all the rows in the table.
Table Data Gateway
Active Record
Plugin
Mapper
17. Represents a monetary value.
Money
Application Controller
Gateway
Page Controller
18. A layer of Mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself.
Data Mapper
Single Table Inheritance
Unit of Work
Class Table Inheritance
19. Provides a coarse-grained facade on fine-grained objects to improve efficiency over a network.
Value Object
Template View
Layer Supertype
Remote Facade
20. An object that wraps a row in a database table or view - encapsulates the database access and adds domain logic on that data.
Optimistic Offline Lock
Serialized LOB
Database Session State
Active Record
21. A structure to organize database mappers that handle inheritance hierarchies.
Inheritance Mappers
Table Module
Database Session State
Record Set
22. A view that proceses domain data element by element and transforms it into HTML.
Registry
Transform View
Coarse-Grained Lock
Identity Map
23. Has one class perform the database mapping for a child class.
Front Controller
Page Controller
Optimistic Offline Lock
Dependent Mapping
24. A controller that handles all requests for a Web site.
Foreign Key Mapping
Database Session State
Front Controller
Lazy Load
25. An object model of the domain that incorporates both behavior and data.
Table Module
Data Transfer Object
Foreign Key Mapping
Domain Model
26. Splits user interface interaction into three distinct roles.
Inheritance Mappers
Serialized LOB
Database Session State
Model View Controller
27. Ensures that each object gets loaded only once by keeping every loaded object in a map. Looks up objects using the map when referring to them.
Page Controller
Table Module
Dependent Mapping
Identity Map
28. Removes dependence upon problematic services during testing.
Single Table Inheritance
Registry
Gateway
Service Stub
29. Represents an inheritance hierarchy of classes as a single table that has columns for all the fields of the various classes.
Pessimistic Offline Lock
Single Table Inheritance
Model View Controller
Unit of Work
30. Saves an association as a table with foreign keys to the tables that are linked by the association.
Identity Field
Server Session State
Association Table Mapping
Special Case
31. Keeps the session state on a server system in a serialized form.
Layer Supertype
Server Session State
Lazy Load
Inheritance Mappers
32. Organizes business logic by procedures where each procedure handles a single request from the presentation.
Page Controller
Inheritance Mappers
Transaction Script
Front Controller
33. An object that represents a database query.
Remote Facade
Query Object
Row Data Gateway
Unit of Work
34. Saves a graph of objects by serializing them into a single large object (LOB) which stores it in a database field.
Special Case
Page Controller
Serialized LOB
Foreign Key Mapping
35. An object that encapsulates access to an external system or resource.
Data Mapper
Row Data Gateway
Gateway
Transform View
36. Represents an inheritance hierarchy of classes with one table for each class.
Class Table Inheritance
Model View Controller
Query Object
Table Data Gateway
37. An object that handles a request for a specific page or action on a Web site.
Page Controller
Remote Facade
Template View
Lazy Load
38. A centralized point for handling screen navigation and the flow of an application.
Concrete Table Inheritance
Application Controller
Front Controller
Special Case
39. An object that sets up a communication between two independent objects.
Model View Controller
Service Stub
Metadata Mapping
Front Controller
40. An in-memory representation of tabular data.
Record Set
Dependent Mapping
Application Controller
Seperated Interface
41. Stores session state on the client.
Plugin
Server Session State
Application Controller
Client Session State
42. An object that carries data between processes in order to reduce the number of method calls.
Service Stub
Implicit Lock
Gateway
Data Transfer Object
43. Links classes during configuration rather than compilation.
Plugin
Application Controller
Server Session State
Data Mapper
44. Locks a set of related objects with a single lock.
Gateway
Transaction Script
Inheritance Mappers
Coarse-Grained Lock
45. Renders information into HTML by embedding markers in an HTML page.
Transaction Script
Application Controller
Embedded Value
Template View
46. Saves the database ID field in an object to maintain identity between an in-memory object and a database row.
Service Stub
Identity Field
Implicit Lock
Page Controller
47. Defines an interface in a seperate package from its implementation.
Seperated Interface
Record Set
Front Controller
Coarse-Grained Lock
48. A well-known object that other objects can use to find common objects and services.
Registry
Identity Map
Foreign Key Mapping
Association Table Mapping
49. Maps an association between objects to a foreign key reference between tables.
Transform View
Money
Foreign Key Mapping
Inheritance Mappers
50. A single instance that handles the business logic for all rows in a database table or view.
Table Module
Page Controller
Money
Optimistic Offline Lock