software design MCQs

Practise focused software design questions with marked answers for exam preparation and subject revision.

software design Mcqs
1. Which of the following is a mechanism that allows several objects in an class hierarchy to have different methods with the same name ?
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A. Polymorphism

B. All of the mentioned

C. Inheritance

D. Aggregation

2. A design description of an object is known as a class__________________?
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A. instance

B. object

C. case

D. both instance and object
3. The context diagram is also known as __________________?
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A. Level-1 DFD

B. All of the mentioned

C. Level-0 DFD

D. Level-2 DFD

4. Which of the following describesIs-a-Relationship ?
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A. Aggregation

B. All of the mentioned

C. Dependency

D. Inheritance
5. Objects are executed _____________________?
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A. sequentially & Parallel

B. in Parallel

C. sequentially

D. none of the mentioned

6. Data Store Symbol in DFD represents a_______________?
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A. Logical file

B. All of the mentioned

C. Physical file

D. Data Structure

7. A directed arc or line in DFD represents_________________?
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A. Data Store

B. Data Flow

C. All of the mentioned

D. Data Process

8. Function-oriented design techniques starts with functional requirements specified in_______________?
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A. SRS

B. All of the mentioned

C. SDD

D. None of the mentioned

9. Which of the following is a function of CASE Tool ?
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A. Supporting Structured analysis and design (SA/SD)

B. Checking whether DFDs are balanced or not

C. All of the mentioned

D. Maintaining the data dictionary

10. Structured Analysis is based on the principles of___________________?
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A. All of the mentioned

B. Top-down decomposition approach

C. Graphical representation of results using DFDs

D. Divide and conquer principle

11. Which of the following is not an activity of Structured Analysis (SA) ?
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A. Transformation of a textual problem description into a graphic model

B. All of the mentioned

C. Functional decomposition

D. All the functions represented in the DFD are mapped to a module structure
12. To arrive at a form which is suitable for implementation in some programming language is the purpose of_______________?
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A. None of the mentioned

B. Structured Analysis (SA)

C. Detailed Design (DD)

D. Structured Design (SD)
13. Object that collects data on request rather than autonomously is known as_________________?
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A. Active Object

B. None of the mentioned

C. Passive Object

D. Multiple instance

14. How many layers are present in the OO design pyramid ?
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A. five

B. one

C. four

D. three

15. Which of the following early OOD methods incorporates both a micro development process and a macro development process. ?
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A. Wirfs-Brock method

B. Coad and Yourdon method

C. Booch method

D. Rumbaugh method

16. Which of the following is a disadvantage of OOD ?
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A. Objects may be

B. erstood as stand-alone entities

C. Easier maintenance

D. None of the mentioned

E. Objects are potentially reusable components

17. Which of the following is not an operation as per OOD algorithms and data structures ?
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A. operations that monitor an object for the occurrence of a controlling event

B. operations that perform a computation

C. operations that manipulate data in some way

D. operations that check for syntax errors
18. In DFDs, user interactions with the system is denoted by ____________________?
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A. Triangle

B. Arrow

C. Circle

D. Rectangle

19. Grady Booch, James Rumbaugh, and Ivar Jacobson combined the best features of their individual object-oriented analysis into a new method for object oriented design known as _____________________?
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A. XML

B. UML

C. SGML

D. HTML

20. Which of the following points related to Object-oriented development (OOD. is true ?
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A. All of the mentioned

B. OOD is concerned with developing an object-oriented system model to implement requirements

C. None of the mentioned

D. OOA is concerned with developing an object model of the application domain

21. Choose the incorrect statement in terms of Objects ?
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A. Objects encapsulate state and representation information

B. Objects cant manage themselves

C. Objects are abstractions of real-world

D. All of the mentioned

22. Which of the following is not a use of a CASE tool ?
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A. Maintains the data dictionary

B. Checks whether DFDs are balanced or not

C. It complies with the available system

D. Support structured analysis and design (SA/SD)

23. SA/SD features are obtained from which of the methodologies ?
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A. DeMarco and Yourdon methodology

B. Gane and Sarson methodology

C. All of the mentioned

D. Constantine and Yourdon methodology

24. What DFD notation is represented by the Rectangle ?
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A. None of the mentioned

B. Data Store

C. Transform

D. Function

25. What encapsulates both data and data manipulation functions ?
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A. Object

B. Sub Class

C. Class

D. Super Class

26. A design description in OOD includes___________________?
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A. Protocol Description

B. Implementation Description

C. Type Description

D. both Protocol and Implementation Description
27. Which of the following is conceptually similar to objects ?
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A. None of the mentioned

B. PROC

C. PRIVATE

D. PACKAGE
28. How is generalization implemented in Object Oriented programming languages ?
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A. Polymorphism

B. Abstract Classes

C. Encapsulation

D. Inheritance
29. Which of the following is/are true with respect to functions ?
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A. A function such as search-book is represented using a circle

B. Functions represent some activity

C. All of the mentioned

D. Function symbol is known as a process symbol or a bubble in DFD

30. Which of the following is the best type of module coupling ?
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A. Stamp Coupling

B. Content Coupling

C. Control Coupling

D. Data Coupling
31. In what type of coupling, the complete data structure is passed from one module to another ?
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A. Control Coupling

B. Content Coupling

C. Stamp Coupling

D. External Coupling

32. __________________ is a measure of the degree of interdependence between modules ?
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A. Coupling

B. None of the mentioned

C. All of the mentioned

D. Cohesion

33. Who designs and implement database structures ?
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A. Project managers

B. Database administrators

C. Technical writers

D. Programmers

34. Which of the following is the best type of module cohesion ?
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A. Temporal Cohesion

B. Sequential Cohesion

C. Functional Cohesion

D. Functional Cohesion
35. Which tool is use for structured designing ?
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A. Structure chart

B. Program flowchart

C. Module

D. Data-flow diagram

36. Java packages and Fortran subroutine are examples of__________________________?
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A. Modules

B. Classes

C. Functions

D. Sub procedures

37. Which of the following is a complementary approach to function-oriented approach ?
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A. Object oriented analysis

B. Object oriented design

C. Structured approach

D. Both Object oriented analysis and design
38. Which of the property of software modularity is incorrect with respect to benefits software modularity ?
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A. Module can use other modules

B. Modules are mostly dependent

C. Modules are robust

D. Modules Can be separately compiled and stored in a library

39. A step by step instruction used to solve a problem is known as ___________________?
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A. A List

B. An Algorithm

C. A plan

D. Sequential structure

40. _______________ is the process of translating a task into a series of commands that a computer will use to perform that task ?
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A. Systems analysis

B. Project design

C. Programming

D. Installation

41. Actual programming of software code is done during the __________________ step in the SDLC?
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A. Development and Documentation

B. Maintenance and Evaluation

C. Analysis

D. Design

42. Which is the first step in the software development life cycle ?
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A. Problem/Opportunity Identification

B. Analysis

C. Design

D. Development and Documentation

43. Choose the option that does not define Function Oriented Software Design ?
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A. Modules represent data abstraction

B. None of the mentioned

C. It consists of module definitions

D. Modules support functional abstraction

44. The importance of software design can be summarized in a single word which is___________________?
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A. Quality

B. Efficiency

C. Complexity

D. Accuracy

45. In Design phase, which is the primary area of concern ?
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A. Architecture

B. Interface

C. Data

D. All of the mentioned
46. If all tasks must be executed in the same time-span, what type of cohesion is being exhibited ?
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A. Functional Cohesion

B. Sequential Cohesion

C. Functional Cohesion

D. Temporal Cohesion
47. Which of the following is the worst type of module coupling ?
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A. Stamp Coupling

B. External Coupling

C. Control Coupling

D. Content Coupling

48. In the Analysis phase, the development of the ______________ occurs, which is a clear statement of the goals and objectives of the project ?
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A. flowchart

B. program specification

C. documentation

D. design

49. Which of the following is the worst type of module cohesion ?
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A. Temporal Cohesion

B. Coincidental Cohesion

C. Logical Cohesion

D. Functional Cohesion

50. Debugging is_________________?
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A. creating program code

B. identifying the task to be computerized

C. finding and correcting errors in the program code

D. creating the algorithm