System Analysis and Design Online MCQ Set 12

QN01. Goals are identified by

  1. finding the deficiencies in the current system
  2. observing the current system
  3. analyzing competitor's system
  4. finding the advantages in the current system
Answer

(A)finding the deficiencies in the current system

QN02. A computer-based information system

  1. may require some tasks to be done manually
  2. should not have any manual tasks
  3. is always fully automated
  4. may use only computers
Answer

(A)may require some tasks to be done manually

QN03. The primary objective of cost-benefit analysis is

  1. to find out direct and indirect cost of developing the information system
  2. to determine the tangible benefits of the information system
  3. to determine if it is economically worthwhile to invest in developing the information system
  4. to determine the intangible benefits of the information system
Answer

(C)to determine if it is economically worthwhile to invest in developing the information system

QN04. Pick the indirect cost from the following

  1. cost of new forms
  2. cost of training analysts and users
  3. cost of software to be brought
  4. cost of fact gathering
Answer

(D)cost of fact gathering

QN05. A detailed system proposal is prepared by a systems analyst if

  1. management is not clear about what the system will do
  2. the analysts feels it is necessary to convince the management
  3. management approves the feasibility report
  4. the analyst feels it will be a challenging system to implement
Answer

(C)management approves the feasibility report

QN06. Deficiencies in a system are pinpointed by identifying

  1. missing function
  2. excessive cost of operation
  3. poor management
  4. poor operation
  1. i and iii
  2. i and ii
  3. i and iv
  4. ii and iii
Answer

(B)i and ii

QN07. Among alternative solutions for an information system one may consider

  1. PC based solutions only
  2. an improved manual system
  3. only client-server based solutions as they are popular now-a-#45;days
  4. whatever management decides
Answer

(B)an improved manual system

QN08. A cost-benefit analysis is performed as a part of

  1. system design
  2. system specification
  3. system performance assessment
  4. feasibility analysis
Answer

(D)feasibility analysis

QN09. In payback method one finds out

  1. the period necessary to invest the cost of the system
  2. the time required for the full benefits to accrue
  3. the time at which benefits exceed cost
  4. whether the system is able to payback amount invested
Answer

(C)the time at which benefits exceed cost

QN10. Goals are identified by

  1. discussion with all concerned
  2. pinpointing unsatisfactory performance
  3. finding poor management
  4. examining a variety of documents
Answer

(B)pinpointing unsatisfactory performance

QN11. A cost benefit analysis consists of

  1. finding the direct and indirect cost of developing, implementing and running the system
  2. finding out the tangible and intangible benefit of the system
  3. finding the investment to be made in the system
  4. finding the profit which will accrue from the system
  1. iii and iv
  2. i and iv
  3. ii and iii
  4. i and ii
Answer

(D)i and ii

QN12. By technical feasibility of a solution we mean that

  1. technology is available to implement it
  2. persons are available to implement it
  3. persons have technical ability to implement it
  4. funds are available to implement it
Answer

(A)technology is available to implement it

QN13. In simple payback method one

  1. accounts for interest payments on benefits
  2. ignores interest payments
  3. only accounts for interest on capital investments
  4. only accounts for interest on recurring expenses
Answer

(B)ignores interest payments

QN14. By operational feasibility we mean

  1. the system can be operated nicely
  2. the system is unusable by operators
  3. the system can be adapted by an organization without major disruptions
  4. the system can be implemented
Answer

(C)the system can be adapted by an organization without major disruptions

QN15. In designing a system it is found that the cost of the system was Rs 1,50,000 and the benefit is Rs 10,000 per month. The interest is 1% per month; the payback period using payback method with interest is

  1. 14 months
  2. 17 months
  3. 15 months
  4. 20 months
Answer

(C)15 months

QN16. Characteristics of good goals are that they

  1. are quantified
  2. improve quality
  3. are realizable within the constraints of the organization
  4. aim at an ideal system
  1. i and ii
  2. ii and iv
  3. ii and iii
  4. i and iii
Answer

(D)i and iii

QN17. In a DFD external entities are represented by a

  1. rectangle
  2. ellipse
  3. diamond shaped box
  4. circle
Answer

(A)rectangle

QN18. A data cannot flow between a store and

  1. a store
  2. a process
  3. an external entity
  1. i and iii
  2. i and ii
  3. ii and iii
  4. ii
Answer

(A)i and iii

QN19. A context diagram

  1. describes the context of a system
  2. is a DFD which gives an overview of the system
  3. is a detailed description of a system
  4. is not used in drawing a detailed DFD
Answer

(B)is a DFD which gives an overview of the system

QN20. Before developing a logical DFD it is a good idea to

  1. develop a physical DFD
  2. develop a system flow chart
  3. determine the contents of all data stores
  4. find out user’s preferences
Answer

(A)develop a physical DFD

QN21. A data flow can

  1. only emanate from an external entity
  2. only terminate in an external entity
  3. may emanate and terminate in an external entity
  4. may either emanate or terminate in an external entity but not both
Answer

(C)may emanate and terminate in an external entity

QN22. Data cannot flow between two data stores because

  1. it is not allowed in a DFD
  2. a data store is a passive repository of data
  3. data can get corrupted
  4. they will get merged
Answer

(D)they will get merged

QN23. A DFD is normally levelled as

  1. it is a good idea in design
  2. it is recommended by many experts
  3. it is easy to do it
  4. it is easier to read and understand a number of smaller DFDs than one large
Answer

(D)it is easier to read and understand a number of smaller DFDs than one large

QN24. When a process is expanded during levelling

  1. data flows entering it are replaced
  2. all data stores used by it are replaced
  3. all data flows entering it must also enter the levelled DFD
  4. all external entities used by it are replaced
Answer

(C)all data flows entering it must also enter the levelled DFD

QN25. A rectangle in a DFD represents

  1. a process
  2. a data store
  3. an external entity
  4. an input unit
Answer

(C)an external entity

QN26. Data cannot flow from an external entity to an external entity because

  1. it will get corrupted
  2. it is not allowed in DFD
  3. an external entity has no mechanism to read or write
  4. both are outside the context of the system
Answer

(D)both are outside the context of the system

QN27. A DFD is levelled by

  1. examining complex processes in a DFD and expanding them into new DFDs with more processes which are easy to understand
  2. merging a number of simple processes in a DFD into a complex processes in a new DFD
  3. expanding the functions of a number of external entities into simpler functions
  4. splitting a number of data flows into simpler data flows
Answer

(A)examining complex processes in a DFD and expanding them into new DFDs with more processes which are easy to understand

QN28. A physical DFD specifies

  1. what processes will be used
  2. who generates data and who processes it
  3. what each person in an organization does
  4. which data will be generated
Answer

(B)who generates data and who processes it

QN29. By an external entity we mean a

  1. unit outside the system being designed which can be controlled by an analyst
  2. unit outside the system whose behavior is independent of the system being designed
  3. a unit external to the system being designed
  4. a unit which is not part of a DFD
Answer

(C)a unit external to the system being designed

QN30. Data flow in a DFD must have

  1. an arrow showing direction of flow of data
  2. a meaningful name
  3. a label such as: xyz
  4. no arrows as they are confusing
  1. i and iii
  2. ii and iv
  3. iii and iv
  4. i and ii
Answer

(D)i and ii

QN31. By levelling a DFD we mean

  1. splitting it into different levels
  2. make its structure uniform
  3. expanding a process into one with more sub-processes giving more detail
  4. summarizing a DFD to specify only the essentials
Answer

(C)expanding a process into one with more sub-processes giving more detail

QN32. When a DFD is levelled

  1. new external entities may be required
  2. no new processes are allowed
  3. no new data flows are allowed
  4. new data stores may be necessary and are allowed
Answer

(D)new data stores may be necessary and are allowed

QN33. A physical DFD

  1. has no means of showing material flow
  2. does not concern itself with material flow
  3. can show only stored material
  4. can show the flow of material
Answer

(D)can show the flow of material

QN34. A data store in a DFD represents

  1. a sequential file
  2. a disk store
  3. a repository of data
  4. a random access memory
Answer

(C)a repository of data

QN35. When a DFD is levelled it is a good idea not to

  1. be concerned about the number of new processes at the next level
  2. allow more than 5 to 10 new processes at the next level for each expanded process
  3. allow new data stores at the next level
  4. allow any new processes at the next level
Answer

(B)allow more than 5 to 10 new processes at the next level for each expanded process

QN36. External Entities may be a

  1. source of input data only
  2. source of input data or destination of results
  3. destination of results only
  4. repository of data
Answer

(B)source of input data or destination of results

QN37. A context diagram is used

  1. as the first step in developing a detailed DFD of a system
  2. in systems analysis of very complex systems
  3. as an aid to system design
  4. as an aid to programmers
Answer

(A)as the first step in developing a detailed DFD of a system

QN38. A data flow can

  1. only enter a data store
  2. only leave a data store
  3. enter or leave a data store
  4. either enter or leave a data store but not both
Answer

(C)enter or leave a data store

QN39. When a DFD is levelled no new

  1. data stores may appear
  2. external entities may appear
  3. processes may appear
  4. data flows may appear
Answer

(B)external entities may appear

QN40. Structured English is used to describe

  1. how programs are to be written
  2. processes in a DFD in a reasonably precise manner
  3. how DFDs are used in data processing
  4. data flows in DFD
Answer

(B)processes in a DFD in a reasonably precise manner

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