Showing posts with label System. Show all posts
Showing posts with label System. Show all posts

System Analysis and Design Set 1

Questions 1 to 10.




Set 1  
Set 2  
Set 3  
Set 4  
Set 5  
Set 6  
Set 7  
Set 8  
Set 9  
Set 10  
Set 11  
Set 12  
Set 13  
Set 14  
Set 15  
Set 16  
Set 17  
Set 18  
Set 19  
Set 20  
Set 21  
Set 22  
Set 23  
Set 24  
Set 25  
Set 26  
Set 27  
Set 28  
Set 29  
Set 30  
Set 31  
Set 32  
Set 33  
Set 34  
Set 35  
Set 36 
1. Which of the following Information systems are aimed at improving the routine business activities on which all organizations depend?

(a)   Management Information systems           
(b)   Decision support systems                           
(c)   Transaction processing systems                 
(d)   Management support systems
(e)   Transaction Information systems.

2. Which of the following strategies are adopted if information requirements are not well-defined?

(a)   Rapid application development method  
(b)   Structured analysis development method
(c)   Systems development life cycle method  
(d)   Prototyping method                                     
(e)   Spiral method.

3.Structured Programming involves:

(a)   functional modularization                          
(b)   localization of errors                                    
(c)   decentralized programming                         
(d)   stress on analysis 
(e)   stress on  requirements gathering.

4.Which of the following is not a fact-finding technique?

(a)   Third party enquiry                                       
(b)   Interview                
(c)   Questionnaire        
(d)   Record reviews                                              
(e)   Observation.


5. Which of the following questions are useful in evaluating data flow diagrams?

(a) Are there any unnamed components in the data flow diagram?
(b) Are there any processes that do not receive input?
(c) Are there any data stores that are input but never referenced?
(d) Both (a) and (b) above
(e) All (a), (b) and (c) above.

6. In system design and development field what does spaghetti code mean?

(a) programs written in unstructured languages.
(b) well structured and well documented code.
(c) program code that has many GOTO statements.
(d) Both (a) and (c) above
(e) Both (b) and (c) above.

7. Which of the following statements is false with respect to a Data Dictionary?

(a) It is a repository of the elements in a system.
(b) data dictionary and data store both are same
(c) It manages detail
(d) It communicates the common meanings for system elements and activities.
(e) It documents system features.

8. Match the following and select the correct options given under

i) physical design  A) Documentation
ii) interview    B) Type of  output
iii) Input design  C) defines design specifications that are to be coded
iv) Installation procedure D) a data gathering technique
v) report   E) Identification and design of interfaces to enter data

(a) i-D, ii – A, iii-B, iv – C, v- E
(b) i-C, ii – D, iii-E, iv – A, v- B
(c) i-A, ii – D, iii-B, iv – C, v- E
(d) i-D, ii – A, iii-E, iv – B, v- C
(e) i-B, ii – A, iii-D, iv – C, v- E.

9. Cost-Benefit Analysis is performed during
(a)  Analysis phase
(b)  Design phase                         
(c)  Feasibility study phase
(d)  Implementation phase                                 
(e)  Maintenance phase.

Answers:

1.Answer :       (c)
Reason:    Transactions produce loads of data everyday and Transaction processing systems aim at improving the routine business activities.

2.Answer :       (d)
Reason:    Prototyping is adopted if information requirements are not well-defined.

3.Answer :       (a)
Reason:    structured programming means splitting the overall task into well-defined subtasks.

4.Answer :       (a)
Reason:    Third party enquiry is not a technique to capture the requirements of the user.

5.Answer :       (e)
Reason:    All the given questions are useful in evaluating the DFDs.

6.Answer :       (d)
Reason:    extensive use of GOTO leads to spaghetti code.

7.Answer :       (b)
Reason:    data dictionary is for storing data about data where as data store is where actual data is stored .

8.Answer :       (b)
Reason:    After matching the both sides the correct option is (b).

9.Answer :       (c)
Reason:    During the Feasibility study the financial feasibility is also measured
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System Analysis and Design Set 2

Questions 11 to 20                                            

11.
Which of the following technique detects transposition errors?
(a)  check digit                                                      
(b)  automatic correction            
 (c)  existence test
(d)  duplicate processing                                     
 (e)  limit and range test.


Set 1  

Set 2  

Set 3  

Set 4  

Set 5  

Set 6  

Set 7  

Set 8  

Set 9  

Set 10  

Set 11  

Set 12  

Set 13  

Set 14  

Set 15  

Set 16  

Set 17  

Set 18  

Set 19  

Set 20  

Set 21  

Set 22  

Set 23  

Set 24  

Set 25  

Set 26  

Set 27  

Set 28  

Set 29  

Set 30  

Set 31  

Set 32  

Set 33  

Set 34  

Set 35  
12.
The structure chart derived by studying the flow through the system supports the activity of
(a)  File design                                                       
(b)  Program design      
(c)  Database design
(d)  Internal controls design                                
(e)  Output design.
13.
Which of the following suggests phased implementation of the system?

(a)    introduce a new system gradually either by functions or by organizational units.
(b)    procure resources in stages and then introduce the system at once
(c)     Withdraw the existing system gradually
(d)    allow the new system and old system to run parallel for sometime
(e)     train the users first and then introduce the new system.
14.
Class is analogous to
(a)  object                      
(b)  blue print                
(c)  instance                   
(d)  record                      
(e)  entity.
15.
Which of the following represents the condition of an object at a specific moment in time?
(a)  behavior                 
(b)  properties                
(c)  instance                   
(d)  state                         
(e)  method.
16.
Some object-oriented systems permit a class to inherit its state(attributes) and behaviors from more than one super class. This is called
(a)  multiple inheritance                                      
(b)  inheritance             
(c)  hybrid inheritance
(d)  specialization                                                 
(e)  aggregation.
17.
Identify the following who presented the object modeling technique (OMT).
(a)  Booch                                                              
(b)  Jim Rumbaugh ET AL                
(c)  Jacobson ET AL
(d)  Both (a) and (b) above                                
(e)  Both (b) and (c) above

18.
Which of the following statements is false with respect to a use case?
(a)    A use case is a scenario for understanding the requirements
(b)    It is an interaction between the users and the system
(c)     It captures the responsibility of the system to its users
(d)    It is used for the requirements analysis
(e)     It represents the flow of activities of various processes in the system.

19.
Which type of association does the following diagram depict?

(a)  aggregation                                                         
(b)  composition                               
(c)  specialization
(d)  generalization                                                
(e)  simple association.

20.
Which of the following statements is false with respect to the diagram given below?

(a)    The building is composed of one or more rooms
(b)    An aggregation relationship exists between the building and the room
(c)     A room can have many rooms
(d)    There is a recursive composition in the above diagram
(e)     A room can have 0 or more rooms.




Answers

11.
Answer :       (a)
          Reason:    Transposition errors occurs due to interchanging of digits which is detected by check digit technique.
12.
Answer :       (d)
          Reason:    The structure chart gives information about how strongly two modules are related and how cohesive is a single module.
13.
Answer :       (c)
          Reason:    Phased implementation means introducing the new system in parallel to already existing system and replacing the old system gradually with the new system.
14.
Answer :       (b)
          Reason:    Class is analogous to blue print.
15.
Answer :       (d)
          Reason:    the condition of an object at specific moment of time is called its state.
16.
Answer :       (a)
          Reason:    If a class inherits its properties from more than one super class then it is called multiple inheritance.
17.
Answer :       (b)
          Reason:    OMT technique is presented by JIM Rumbaugh ET AL.
18.
Answer :       (e)
          Reason:    A use case diagram represents the interaction of the user with the system. It will not detail any flow of events.
19.
Answer :       (a)
          Reason:    The hollow diamond depicts aggregation which is ‘a part of ‘ relationship.
20.
Answer :       (b)
          Reason:    option b is false because a composition relationship exists between the building and the room.



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