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