(完整word版)软件工程选择题

element software architecture time required for system simulation Answer: a

6. Use-case actors are always people, never system devices. a. True b. False

Answer: b

7. Which of the following is not one of the requirement classifications used in Quality Function Deployment (QFD)? exciting expected mandatory normal Answer: c Chapter 7

1.Which of these is not an element of an object-oriented analysis model? Answer: c Behavioral elements Class-based elements Data elements

Scenario-based elements

2.Which of the following is not an objective for building an analysis model? Answer: c define set of software requirements that can be validated describe customer requirements

develop an abbreviated solution for the problem establish basis for software design

3. The data flow diagram: Answer: e depicts relationships between data objects depicts functions that transform the data flow indicates how data are transformed by the system indicates system reactions to external events both b and c

4.Which of the following items does not appear on a CRC card? Answer: c class collaborators class name class reliability class responsibilities

5. For purposes of behavior modeling a state is any consumer or producer of data. data object hierarchy. observable mode of behavior. well defined process. Answer: c

6. Attributes cannot be defined for a class until design has been completed. a. True

b. False Answer: b

7. Operations are object procedures that are invoked when an object receives a message. True False Answer: a

8. UML activity diagrams are useful in representing which analysis model elements? a. Behavioral elements b. Class-based elements c. Flow-based elements d. Scenario-based elements Answer: d Chapter 8

1.Which of the following are areas of concern in the design model? Answer: e architecture data interface project scope a, b and c

2.Which of these are characteristics of a good design? Answer: e exhibits strong coupling between its modules implements all requirements in the analysis model includes test cases for all components provides a complete picture of the software both b and d

3.Information hiding makes program maintenance easier by hiding data and procedure from unaffected parts of the program. Answer: a True False

4.Cohesion is a qualitative indication of the degree to which a module Answer: b can be written more compactly. focuses on just one thing.

is able to complete its function in a timely manner. is connected to other modules and the outside world.

5. Coupling is a qualitative indication of the degree to which a module Answer: d can be written more compactly. focuses on just one thing.

is able to complete its function in a timely manner. is connected to other modules and the outside world.

6. Polymorphism reduces the effort required to extend an object system by Answer: b

coupling objects together more tightly.

enabling a number of different operations to share the same name making objects more dependent on one another. removing the barriers imposed by encapsulation.

7. Which design model elements are used to depict a model of information represented from the user's view? Answer: c

Architectural design elements Component-level design elements Data design elements Interface design elements

8. Which design is analogous to the floor plan of a house? Answer: a a. Architectural design elements b. Component-level design elements c. Data design elements d. Interface design elements

9. Which design model is analogous to the detailed drawings of the access points and external utilities for a house?

Architectural design elements Component-level design elements Data design elements Interface design elements Answer: d

10. Which design model is analogous to a set of detailed drawings for each room in a house? a. Architectural design elements b. Component-level design elements c. Data design elements d. Interface design elements Answer: b

11. The deployment design elements specify the build order for the software components. a. True b. False Answer: b

12. One of the key problems in software reuse is the inability to find existing reusable design patterns when hundreds of candidates exist. a. True b. False Answer: a Chapter 9

1. An architectural style encompasses which of the following elements? Answer: e a. constraints b. set of components c. semantic models d. syntactic models

e. a, b and c

2. During the process of modeling the system in context, systems that interact with the target system are not represented as Answer: d a. Peer-level systems b. Subordinate systems c. Super-ordinate systems d. Working systems

3. When the overall flow in a segment of a data flow diagram is largely sequential and follows straight-line paths, _________ is present. Answer: d a. low coupling b. Good modularity c. transaction flow d. transform flow

4. When you encounter both transform flow and transaction flow in the same DFD the flow is partitioned and the appropriate mapping technique is used on each part of the DFD. Answer: a a. True b. False

5. When a single item that triggers other data flow along one of many paths of a data flow diagram, ________ characterizes the information flow. Answer: c a. high coupling b. poor modularity c. transaction flow d. transform flow

6. In transaction mapping the first level factoring results in the Answer: b a. creation of CFD.

b. derivation of control hierarchy c. distribution of work modules d. refinement of the module view

7. A successful application of transform or transaction mapping to create an architectural design is supplemented by Answer: e

a. entity relationship diagram b. module interface descriptions c. processing narratives for each module d. test case for each module e. Both b and c

8. The best representation of system architecture is an operational software prototype. Answer: b a. True b. False

Chapter 10

1. In the context of object-oriented software engineering a component contains a. attributes and operations b. instances of each class