Computer Science - System Analysis and Design MCQs Part 4
1. The recipe instruction "Beat until smooth' is an example of the _____ structure.
A.
Control
Control
B.
Repetition
Repetition
C.
Selection
Selection
D.
Sequence
Sequence
E.
Switching
Switching
Answer Option B
2. Which of the following symbols is (are) not the Data Flow Diagram (DFD):
A.
a square
a square
B.
an open rectangle
an open rectangle
C.
a circle
a circle
D.
a triangle
a triangle
E.
a bubble
a bubble
Answer Option D
3. The packaged design includes all of the following except;
A.
program flowcharts
program flowcharts
B.
system configuration
system configuration
C.
module descriptions
module descriptions
D.
All of the above
All of the above
E.
None of the above
None of the above
Answer Option D
4. The analyst learns of the manager's information needs through use of
A.
mail survey
mail survey
B.
in depth interview
in depth interview
C.
controlled experiment
controlled experiment
D.
observation
observation
E.
None of the above
None of the above
Answer Option B
5. In processing controls must be established in a system, in order to
A.
prohibit tampering with information by unauthorized person
prohibit tampering with information by unauthorized person
B.
Verify that all data have been processed
Verify that all data have been processed
C.
block or trap faulty data from entry into processing
block or trap faulty data from entry into processing
D.
All of the above
All of the above
E.
None of the above
None of the above
Answer Option D
6. A data element in a record, that uniquely distinguishes the record, from all other records, is called
A. response time
B. Key
C. System review
D. test data
E. None of the above
Answer Option B
7. A Turnaround document
A. is circulated among all the staff of an organization.
B. is circulated among all the heads of departments of an organization.
C. is output at one point which later comes back as an input
D. All of the above
E. None of the above
Answer Option C
8. The first step in the problem-solving process is to _____.
A. Plan the algorithm
B. Analyze the problem
C. Desk-check the algorithm
D. Evaluate and modify (if necessary) the program
E. Code the algorithm.
Answer Option B
9. Checking the quality of software in both simulated and line environments, is known as
A. checking
B. usability
C. validity
D. validation
E. None of the above
Answer Option D
10. Some firms have created a combination position called
A. manager / analyst
B. programmer / operator
C. analyst / programmer
D. manager / operator
E. None of the above
Answer Option C
11. The first step of the implementation phase is
A. implementation planning
B. select the computer
C. announce the implementation project
D. prepare physical facilities
E. None of the above
Answer Option A
12. The advantage of Purchase Option is (are)
A. No financing is requird. The risk of system obsolescence is shifted to the lessor
B. the flexibility of modifying the system at will
C. Insurances, maintenance, and other expenses are included in the rental charge
D. All of the above
E. None of the above
Answer Option B
13. Management's decision to rent a computer system may be based upon
A. desire to avoid a large one-time payment
B. tax advantages
C. operational flexibility in changing hardware
D. All of the above
E. None of the above
Answer Option D
14. All of the following tools are used for process descriptions except:
A. structured english
B. decision tables
C. pseudocode
D. data dictionaries
E. None of the above
Answer Option D
15. Which of the following would not be a major deliverable of the structured systems analysis phase.
A. data dictionaries
B. data flow diagrams
C. entity relationship diagrams
D. prototype model
E. None of the above
Answer Option D
16. System design aid should primarily
A. help analyse both data and activities
B. help in documentation
C. help in programming
D. generate code
E. None of the above
Answer Option A
17. Any data that are entered into the computer, for the first time, will go through the process of
A. System testing
B. Sequential testing
C. String testing
D. Validation
E. None of the above
Answer Option D
18. Mistakes made in the system analysis stage show up in :
A. implementation
B. system design
C. system developments
D. All of the above
E. None of the above
Answer Option A
19. The combination of the top-down and the bottom-up approach may be referred to as an
A. integrative approach
B. interpretive approach
C. interactive approach
D. both b and c
E. None of the above
Answer Option A
20. Which of the following statements is not true
A. Entity Relationship Diagrams are used to design files
B. Systems Overview can be prescribed by Data Flow Diagrams
C. Phases, in a Systems life cycle, are fixed and invariant.
D. Indexed files are faster than sequential files in all situations
E. None of the above
Answer Option D
21. The processes at the most detailed level of the data flow diagrams are called
A. transform descriptions
B. functional primitives
C. data flows
D. interfaces
E. None of the above
Answer Option B
22. A pseudocode is
A. a protocol used in data communication
B. an easy way to communicate the logic of a program, in English¬like statements
C. a computer generated random number
D. a machine code
E. None of the above
Answer Option B
23. Which of the following is not true of the conversion phase of the development life cycle?
A. the user and systems personnel must work closely together
B. steps must be taken to phase out the old system
C. documentation should be emphasized
D. the non machine components of the system should be considered
E. None of the above
Answer Option C
24. Which of the following way(s) the information system and capability are related to each other:
A. improved processing speed
B. increased volume of activities
C. faster retrieval of information
D. All of the above
E. None of the above
Answer Option D
25. Inverted list 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 C
26. Programmers refer to the goal of solving a problem as the _____.
A. Input
B. Output
C. Processing
D. Purpose
E. None of the above
Answer Option B
27. An indexed file offers the facility of a Random file and the access method of a
A. Sequential file
B. indexed file
C. direct access file
D. random access file
E. None of the above
Answer Option A
28. Most algorithms begin by _____.
A. Displaying the input items
B. Displaying the output items
C. Entering the input items into the computer
D. Entering the output items into the computer
E. Processing the input items by doing some calculations on them
Answer Option C
29. The current trend, of computer usage is mainly interactive; the trend, earlier, was
A. batch processing
B. parallel processing
C. random processing
D. multi-task processing
E. None of the above
Answer Option A
30. The imitation of a systems investigation may result from:
A. a manager's formal request
B. a scheduled system's review
C. an analyst's investigation
D. All of the above
Answer Option D
31. HIPO
A. is a forms-driven technique in which standard forms are used to document the information
B. consists of a hierarchy chart and an associated set of input/process/ output charts
C. captures the essence of top down decomposition.
D. All of the above
E. None of the above
Answer Option D
32. An Audit trial is
A. a feature of data processing systems that allows for the study of data as processed from step to step; and auditor can then trace all transactions that affect an account.
B. a data item that characterizes an object
C. two or more data items handled as a unit
D. All of the above
E. None of the above
Answer Option A
33. During the implementation phase, the executive vice-president is primarily concerned with
A. planning
B. organizing
C. directing
D. controlling
E. None of the above
Answer Option D
34. Which of the following activities, does not belong to the Implementation phase of the SDLC?
A. File conversion
B. Program testing
C. User training
D. All of the above
E. None of the above
Answer Option B
35. Which of the following tools is not used for process descriptions?
A. pseudocodes
B. decision tables
C. structured english
D. data dictionaries
E. None of the above
Answer Option D
36. Which is the best process to access number of records from the same file?
A. a batch job
B. a real-time job
C. an on-line job
D. All of the above
E. None of the above
Answer Option A
37. A consideration evaluated by management when planning to convert to a computer system is
A. available software
B. vender maintenance
C. CPU size and speed
D. All of the above
E. None of the above
Answer Option D
38. The strategy for eliciting information regarding the user's requirements is (are)
A. asking questions
B. obtaining information from the present system
C. prototyping
D. All of the above
E. None of the above
Answer Option D
39. A menu-driven system
A. can be used only by computer professionals
B. is required only for on-line systems
C. increases the operator's work
D. presents options and allows the user to make selections
E. None of the above
Answer Option D
40. During what phase, the requirement analysis is performed?
A. system design phase
B. system development phase
C. system analysis phase
D. system investigation phase
E. None of the above
Answer Option C
41. In Prototyping, the following are used
A. screen generators
B. input generators
C. application generators
D. All of the above
E. None of the above
Answer Option D
42. The requirements report includes
A. a hierarchy chart showing the top-level modules
B. a list of alternative solutions considered
C. a data flow diagram describing the proposed new system.
D. All of the above
E. None of the above
Answer Option C
43. A programmer would most likely prepare a
A. general system flowchart
B. specific system flowchart
C. general program flowchart
D. specific program flowchart
E. None of the above
Answer Option D
44. Coding and testing are done in which manner.
A. ad hoc
B. cross-sectional
C. bottom-up
D. top-down
E. None of the above
Answer Option D
45. The calculation instructions in an algorithm should state _____.
A. Only what is to be calculated
B. Only how to calculate something
C. Both what is to be calculated and how to calculate it
D. Both what is to be calculated and why is it calculated
E. None of the above
Answer Option C
46. After planning an algorithm, you should _____ to verify that it will work correctly.
A. Analyze the algorithm
B. Code the algorithm
C. Desk-check the algorithm
D. Evaluate and modify (if necessary) the program.
E. None of the above
Answer Option B
47. The first step of the implementation phase is
A. select the computer
B. announce the implementation project
C. implementation planning
D. prepare physical facilities
E. None of the above
Answer Option C
48. During the system study, analysts determine manager's information needs by
A. conducting tours of a nearby computer center
B. asking questions
C. showing samples of computer reports
D. teaching short courses in programming languages
E. None of the above
Answer Option B
49. The combination of the top-down and the bottom-up approach may be referred to as an:
A. interactive approach
B. interpretive approach
C. integrative approach
D. All of the above
E. None of the above
Answer Option C
50. Which of the following decides which systems development projects to work on first ?
A. data diagram
B. project dictionary
C. systems flowcharts
D. steering committee
E. None of the above
Answer Option A
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