Computer Science - System Analysis and Design MCQs Part 2
1. In top down analyis and design
A.
each succeeding phase is more detailed than the phase before it
each succeeding phase is more detailed than the phase before it
B.
each succeeding phase is as detailed as the phase before it.
each succeeding phase is as detailed as the phase before it.
C.
each succeeding phase is less detailed than the phase before it
each succeeding phase is less detailed than the phase before it
D.
aLL of the above
aLL of the above
E.
None of the above
None of the above
Answer Option A
2. The _____ symbol is used in a flowchart to represent a calculation task.
A.
Input
Input
B.
Output
Output
C.
Process
Process
D.
Start
Start
E.
Stop
Stop
Answer Option C
3. System prototyping helps the designer in
A.
making the programmers understand how the system will function.
making the programmers understand how the system will function.
B.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
C.
giving a demo of the software, to the system manager to whom he reports
giving a demo of the software, to the system manager to whom he reports
D.
both (a) and (b)
both (a) and (b)
E.
None of the above
None of the above
Answer Option B
4. Which of the following systems implementation approaches should be used if you want to run the old system and the new system at the same time for a specified period?
A.
direct
direct
B.
pilot
pilot
C.
parallel
parallel
D.
phased
phased
E.
None of the above
None of the above
Answer Option C
5. Main characteristic of "ring", in Data structure, is
A.
First record points only to the last record
First record points only to the last record
B.
Last record points to the first record
Last record points to the first record
C.
Many records point to one record
Many records point to one record
D.
Each record points to all other records
Each record points to all other records
E.
None of the above
None of the above
Answer Option B
6. Which of the following is not considered as a tool at the system design phase?
A. piechart
B. data-flow diagram
C. decision table
D. systems flowchart
E. None of the above
Answer Option A
7. To avoid errors in transcription and transposition, during data entry, the System Analyst should
A. provide for a check digit
B. provide for a hash totals
C. provide batch totals
D. All of the above
Answer Option D
8. Sequential or series testing is
A. running the system with line data by the actual user
B. making sure that the new programs do in fact process certain transactions according to Specifications
C. is checking the logic of one or more programs in the candidate system
D. testing changes made in an existing or a new program
E. None of the above
Answer Option C
9. A consideration evaluated by management when planning to convert to a computer system is :
A. maintenance
B. available software
C. CPU sized speed
D. All of the above
E. None of the above
Answer Option D
10. Direct-access organization
A. means storing records in contiguous blocks according to a key.
B. Stores records sequentially but uses an index to locate records
C. uses an index for each key type
D. has records placed randomly throughout the file
E. None of the above
Answer Option D
11. A system design aid should primarily
A. help analyse both data and activities
B. help in documentation
C. generate code
D. using a graphical user interface
E. None of the above
Answer Option A
12. Structured Programming involves
A. decentralisation of program activity
B. functional modularisation
C. localisation of errors
D. All of the above
E. None of the above
Answer Option B
13. To reconstruct a system, which of the following key element(s) must be considered :
A. feedback and environment
B. control and processors.
C. outputs and inputs
D. All of the above
E. None of the above
Answer Option D
14. The conditions immediately outside a system is called
A. The boundary
B. The interface
C. The environment
D. The protocols
E. None of the above
Answer Option C
15. A feasibility document should contain all of the following except:
A. project name
B. problem descriptions
C. feasible alternative
D. data-flow diagrams
E. None of the above
Answer Option B
16. Which of the following is used when a company goes outside its organization to develop a new system?
A. data flow diagram
B. systems flowchart
C. project dictionary
D. request for proposal
E. Norte of the above
Answer Option D
17. Which of the following is not a characteristic of a system
A. operates for some purpose
B. has homogeneous components
C. has interacting components
D. operates within a boundary
E. None of the above
Answer Option B
18. Which of the following is not considered a tool at the system Design phase?
A. Data-Flow Diagram
B. Decision Table
C. Pie chart
D. System Flowchart
E. None of the above
Answer Option C
19. Which of the following is a graphic representation of the modules in the System and the interconnection between them
A. Pie chart
B. Flow chart
C. Structural chart
D. System chart
E. None of the above
Answer Option C
20. A group of related fields, is known as
A. tuple
B. schema
C. records
D. file
E. None of the above
Answer Option A
21. Advantages of data base system is (are)
A. storage space duplication is eliminated
B. all applications share centralized files
C. data are stored once in the data base and are easily accessible when needed
D. All of the above
E. None of the above
Answer Option D
22. A Decision table
A. represents the information flow
B. documents rules, that select one or more actions, based on one or more conditions, from a set of possible conditions.
C. gets an accurate picture of the system
D. shows the decision paths
Answer Option B
23. The structure chart is:
A. a document of what has to be accomplished
B. a hierarchical partitioning of the program
C. a statement of information-processing requirements
D. All of the above
E. None of the above
Answer Option B
24. Top Management is more interested in
A. day-to-day operations
B. strategic decisions
C. tactical decision
D. both b and c
E. None of the above
Answer Option D
25. Which of the following is a function of the process step of data processing?
A. protect
B. index
C. retrieval
D. update
E. None of the above
Answer Option C
26. In a Decision tree
A. the root is drawn on the left and is the starting point on the decision sequence
B. the branch, to be followed, depends on the conditions and decisions, to be made
C. the nodes represent the conditions, with the right wise of tree listing the actions to be taken
D. All of the above
E. None of the above
Answer Option D
27. A file containing multiple indices to the data is called a/an
A. indexed file
B. sequential file
C. indexed-sequential file
D. inverted file
E. None of the above
Answer Option D
28. The short statements that represent the steps the computer needs to follow to solve a problem are called
A. Flowcharts
B. Flow diagrams
C. IPO charts
D. Pseudocharts
E. Pseudocode
Answer Option E
29. Which of the following is not a factor in the failure of a systems development project ?
A. inadequate user involvement
B. failure of systems integration
C. size of company
D. continuation of a project that should have been cancelled
E. None of the above
Answer Option C
30. Most algorithms follow the format of
A. Entering the input items, then displaying the input items, and then processing the output items
B. Entering the input items, then processing the output items, and then displaying the output items
C. Entering the input items, then processing the input items, and then displaying the output items
D. Entering the output items, then displaying the output items, and then processing the output items
E. Entering the output items, then processing the output items, and then displaying the output items
Answer Option C
31. Tracing, of any input record or process, performed on a system, back to its original source, is an
A. audit trial
B. report generation
C. batch processing
D. conversion
E. None of the above
Answer Option A
32. Which of the following is used when a company goes outside its organization to develop a new system?
A. request for proposal
B. data flow diagram
C. systems flowchart
D. project directory
E. None of the above
Answer Option A
33. In functional decomposition, the data flow diagram
A. is ignored
B. is partitioned according to the "closeness" of the datagrams and data storage items
C. is partitioned according to the logical "closeness" of the actigrams
D. both (a) and (c)
E. None of the above
Answer Option C
34. The approach used in top-down analysis and and design is
A. to prepare flowcharts after programming has been completed
B. to identify a top level function and then create a hierarchy of lower level modules and components
C. to identify the top level functions by combining many smaller components into a single entity.
D. All of the above
E. None of the above
Answer Option B
35. In the system concepts, term organization
A. implies structure and order
B. refers to the mannar in which each component functions with other components of the system.
C. means that parts of the computer system depend on one the another.
D. refers to the holism of systems
E. None of the above
Answer Option A
36. The two classification of inputs are:
A. energies and maintenance
B. products and waste
C. maintenance and waste
D. maintenance and signal
E. None of the above
Answer Option D
37. _____ use standardized symbols to represent an algorithm.
A. Flowcharts
B. Flow diagrams
C. IPO charts
D. Pseudocharts
E. Pseudocode
Answer Option A
38. The background and experience of analyst include;
A. a background in systems theory and organization behavior
B. familiarity with the makeup and inner workings of major application areas such as financial accounting, personnel administration, marketing and sales, operations management, model building, and production control.
C. competence in system tools and methodologies and a practical knowledge of one or more programming and data base languages.
D. All of the above
E. None of the above
Answer Option D
39. Structured design methodology is an approach to design that adheres to rales based on principles such as
A. top-down refinement
B. bottom-up design
C. data flow analysis
D. All of the above
E. None of the above
Answer Option C
40. Reverse video is a technique of
A. showing data with half brightness
B. showing data upside down on the screen
C. hiding confidential data on the screen
D. emphasizing data by reversing the foreground and background
E. None of the above
Answer Option D
41. Unit testing is
A. running the system with line data by the actual user
B. making sure that the new programs do in fact process certain transactions according to Specifications
C. is checking the logic of one or more programs in the candidate system
D. testing changes made in an existing or a new program
E. None of the above
Answer Option D
42. A checksum digit is used for detecting Errors in
A. Data transmission
B. Arithmetic operations
C. Logical operations
D. All of the above
E. None of the above
Answer Option A
43. Which of the following is used to derive the address, of a record from the record key
A. comma
B. hashing
C. variable
D. field
E. None of the above
Answer Option B
44. The records in a file on magnetic tape
A. can only be accessed serially
B. are meant for backup
C. cannot be transformed to a disk file
D. have to be arranged in a key sequence
E. None of the above
Answer Option A
45. Data structuring is refined through a process called
A. structuring process
B. hierarchical structure
C. normalization
D. Relation structure
E. None of the above
Answer Option C
46. Backup and recovery procedures are primarily implemented to
A. handle the contingency when a file gets corrupted
B. to provide data redundancy
C. to show different versions of data and programs
D. All of the above
E. None of the above
Answer Option A
47. A Decision - Table is
A. a way of representing the information flow
B. a way of representing multiple conditions
C. a ways to get an accurate picture of the system
D. All of the above
E. None of the above
Answer Option B
48. A system analyst designs a new system by
A. identifying sub systems and the interfaces between sub systems
B. adopting a developed system to the present environment
C. developing the system as a large, single unit
D. propose alternatives to the current system
E. None of the above
Answer Option A
49. "User friendly" computers have ensured that
A. management requires no system analysis and design.
B. programmers are no longer needed
C. structured programming is not needed
D. All of the above
E. None of the above
Answer Option E
50. Mistakes made in the requirements analysis stage show up in
A. System design
B. System development
C. System testing
D. System implementation
E. None of the above
Answer Option D
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