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