PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 The data dictionary in SDLC contains descriptions of. DFD Elements E-R diagram Use case Class diagram
2 Which of the following tool sketches the logical structure of the system based on some oriteria. Decision table Data flow diagram Decision tree Structured chart
3 Which one of the following fact finding technique is most useful in collecting quantitative data. Interviews Record reviews Questionnaires Observations
4 Which of the following are considered usual steps in systems development life cycle. systems analysis systems design Testing Implementation
5 An intial attempt at defining the piecess of the system and their relationships, organizing these pieces parts into well-defined layers with explicit dependencies is called. Use case analysis architectural analysis Structural analysis Documentation analysis
6 A subclass inherits is parents is. Attribute links Attributes, operations Attributes, operations, relationships Methods links
7 Which of the following phrase best represents a generalization relationship. 'is a part of" "Is a kind of" "is a replica of" "Is related of"
8 Polymorphism can be described as Hiding many different implementations behind one interface Inheritance <u>Generalization</u> Composition
9 What is the other name for Encapsulation. Information hading Interface management Polymorphism Aggregation
10 Which of the following is not a characteristic of an object. Identity Behaviour Action State
11 Which of the following is not a UML diagram. Component diagram State chart diagram Deployment diagram Broadcast diagram
12 Black box testing is also called Specification based testing Structural testing Verification Unit testing
13 The testing technique that requires devising test cases to exercise the internal logic of a software module is called. Behavioral testing Block box testing White box testing Red box testing
14 The testing technique that requires devising test cases to demonstrate that each program function is operational is called. Black box testing glass box testing Grey box testing Green box testing
15 How data store is represented in a data flow diagram. Circle Full open rectangle Half open rectangle Full open triangle
16 Traditionally the only phase of software development where a formal approach is used is Programming Design Requirement Testing
17 The____ is a group of attributes used to identify a single entity instance. Candidate key Concatenated key Alternate key Primary key
18 Which of the following are not CASE facilities. Diagramming tools Prototyping tools Description tools System analyzing tools
19 Object hide their inner workings of their operations from the outside world and from other object this is called. Composition Encapsulation Generalization An object
20 _________ literally means many forms the concept that different Objects can respond to the same message in different ways. Composition Aggregation Inheritance Polymorphism
21 _________ relationship specifies an optional behavior A generalization An inheritance An include An extend
22 The UML _____ diagram provides a variety of symbols and encompasses a number of ideas all to model the changes which just one object goes through. Package Object State Class
23 The _______ is a construct that helps analysis to work with users to determine system usage. Use case Actor Class Package
24 When identifying the major use cases, the information needed to identify the use cases in contained in the. External entity JAD session classification Major steps for each use case Observation form
25 Output from a use case are described on the use case form along with their corresponding. Data models Destination Inputs Source
26 Each use case describes how the system reacts to a _____ that occurs to trigger the system. External entity Data flow Process Event
27 The four elements commonly found on a system request are. Economic, organizational technical and operational feasibility Project sponsor business need requirement and business value Risk analysis, familiarity project size and cost benefit analysis Upgrades licensing fees repairs and charges.
28 The functionality of the system or what the information system will do is called the ______ of the system. Business need Intangibles Requirements Sponsors
29 __________ is the process of examining the technical economics and organizational pros and cons of developing a new system. Committee approval Feasibility analysis functionality determination Sustem request.
30 in which phase of the SDLC is the system proposal developed. Analysis Design Implementation Planning
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