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