System Analysis And Design questions and answers by LUBAN
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1. Which one of the following steps under the analysis phase leads to the development of system concept for the proposed system?
A. Analysis strategy
B. Model development
C. Requirements gathering
D. System proposal development
2. Which one of the following feasibility analysis types assesses the project team's suitability to plan, design, and implement the systems at hand?
A. Cultural and political feasibility
B. Economic feasibility
C. Organizational feasibility
D. Technical feasibility
3. Provided a typical coil spring is not stretched beyond its elastic limit, it would varely return to its normal state. The coil spring in this scenario is said to be a
A. Close
B. Deterministic
C. Probabilistic
D. Stable
4.The V-model pays more explicit attention to ___________
A. Iteration
B. Return on investment (ROI)
C. Business Value (the “V”)
D. Testing
5. Which one of the following system development methodologies incorporate testing in almost all the phases of the SDLC?
A. Agile development
B. System prototyping
C. V-Model
D. Waterfall model
6. Which one of the following steps is not invoked when conducting economic feasibility?
A. Assignment of values to costs and benefits
B. Cash flow determination
C. Costs and benefits identification
D. Purchasing software and hardware
7. Which one of the following strategies of assessing the economic value of an IS project is equivalent to computing the profit percent of a business transaction.
A. Break even point
B. Net present value
C. Return on investment
D. Discounted returns
8. Which one of the following is not an element of system requests?
A. Business need
B. Business requirement
C. Business value
D. System constraints
9. Which one of the following is the most required and necessary document for conducting feasibility analysis during system development?
A. Feasibility study report
B. System proposal
C. System request
D. System template
10. The business-related reasons such as increasing sales, and improving market shares, for which information systems are installed are best referred to as..
A. Business commitment
B. Business need
C. Business requirement
D. Business value
11. Which one of the following is not a characteristic of systems
A. Boundary
B. Functional decomposition
C. Localization
D. Subsystems
12. Subsystems at the lowest level whose processes are not clearly defined are referred to as Systems as....
A. Black hole
B.Black box
C. Gray hole
D. Black hat
13. Which one of the following is not a component of automated systems?
A. Software
B. Data
C. People
D. DFDs
14. System development teams use ___ to determine the viability of information systems to be developed.
A. Requirements engineering
B. Feasibility study
C. Maintenance and support
D. Process modeling
15. Systems that control their inputs and are consequently protected from environmental disturbances are said to be..
A. Open
B. Closed
C. Relatively closed
D. Stable
16. Context diagrams of DFDS are drawn using ______ symbols
A. 1
B. 2
C. 3
D. 4
17. Which one of the following is the most commonly used fact finding techniques in requirements engineering?
A. Observation
B. Document analysis
C. Interview
D. Questionnaire
18. Which one of the following committees is responsible for reviewing all system requests from departments and units within the organization as well as thind party companies?
A. System review committee
B. System design committee
C. System steering committee
D. System integration committee
19. Systems whose next operations can be perfectly predicted given a description of their current states, and operations are said to be.
A. Closed
B. Deterministic
C. Probabilistic
D. Stable
20. Which one of the following categories of systems are subject to increase in entropy?
A. Closed and open systems
B. Closed and relatively closed system
C. Closed and deterministic systems
D. Deterministic and probabilistic systems
21. Information systems that allow management of organizations to connect in both internal, and external data sources for strategic planning are best referred to as
A. Transaction Processing Systems
B. Management Information Systems
C. Executive Information Systems
D. Decision Support Systems
22. Systems projects begin with the decision to.........
A. Analyze user requirements
B. Model systems
C. Implement databases
D. Design user interfaces
23.Which one of the following sub diagrams of DFDs is used to clearly determine system boundaries?
A. Context diagram 0
B. Context diagram
C. Diagram 0
D. Hierarchy chart
24. Physical models are also referred to as
A. Logical models
B. Essential models
C. Business models
D. Implementation models
25. Which one of the following information systems is the most suitable for producing reports management needs for planning and controlling businesses?
A. Decision Support System
B. Executive Information System
C. Management Information System
D. Transaction Processing System
26. Data flow diagrams are also referred to as ________
A. Hierarchy charts
B. Database schema
C. Network diagrams
D. Transformation graph
27. Errors that reveal that system models have insufficient inputs to produce the desired output are best referred to as ______
A. Black box
B. Black hole
C. Gray hole
D. Bermuda triangle
28. The knowledge and skill sets of systems analysts is categorized under the following broad headings except?
A. Business skills and knowledge
B. Socialization skills and knowledge
C. Technical skills and knowledge
D. People skills and knowledge
29. The DeMarco and Yourdon notation uses ______ shape to resent data stores.
A.Open-ended box
B. Square
C. Rectangle
D. Two parallel lines
30. When a data flow points away from a data store in DFDs, it signifies a/an ______operation.
A. Read
B. Load
C. Process
D. Write
31. External agents that are shown to receiving and using data from a DFD are best described as _______
A. Agents
B. Data flow
C. Sink
D. Source
32. RAD is an acronym for:
A. Real Application Development
B. Rapid Application Design
C. Rapid Authentic Development
D. Rapid Application Development
33. The science (or art) of project management is in making _______ of size, time and cost.
A. Benchmark comparisons
B. Analytical and educated estimates
C. Trade offs
D. Maximum calculations
34. CASE stands for:
A. Computer analysis and software engineering
B. Computer-aided software engineering
C. Computer Arbitrated System Engineering
D. Control and System Environment
35. SDLC stands for.....
A. Systems Design Logic Cycle
B. Systems Development Logic Control
C. Systems Development Life Cycle
D. Software Design Logic Control
36. Which one of the following roles in SDLC focuses on how the new information system will communicate technically with the organization's existing technical structures?
A. Change management analyst
B. Infrastructure analyst
C. Project manager
D. Systems analyst
37. Which one of the phases of the SDLC is maintenance and support strategies instituted in system development?
A. Planning
B. Analysis
C. Design
D. Implementation
38. Which one of the following systems is subject to increased entropy?
A. Closed
B. Deterministic
C. Open
D. Stable
39. Which one of the following strategies of assessing the economic value of an IS project is equivalent to computing the profit percent of a business transaction?
A. Break-even point
B. Net present value
C. Return on investment
D. Discounted returns
Provide the exact answers to Questions 23-25 in the spaces provide
1. Economic feasibility is also referred to as _________
Ans: Cost Benefit Analysis
2. State the full meaning of XP as used in Systems Analysis and Design
Ans: Extreme Programming
3. A formalized approach to implementing the SDLC is known as
Ans: Methodology
4. Understanding and specifying in details what an information system should do is referred to as ________
Ans: System Analysis
5. A collection of interrelated components that function together to achieve an outcome is known as _____
Ans: System
6. For each of the following feasibility studies that are conducted during IS project initiation, write down the key question each of them addresses
i. Economic feasibility
ii. Organizational feasibility
iii. Technical feasibility
Ans:
i. Should we build it
ii. When we build it will they come
iii. Can we build it
7. The break-even point analysis is also referred to as _______
Ans: Payback method
8. During the project initiation workflow, the __i__ submits ___ii___ to the ___iii___
Ans: i. Project sponsor
ii. System request
iii. Approval committee
9. The planning phase of the SDLC consists of two steps namely __i___ and ___ii__
Ans: i. Project initiation
ii. Project management
10. A formalized approach to implementing the SDLC in SAD is known as ________
Ans: Methodology
11. Systems which are capable of returning to their desired state when disturbed by external factors are referred to as _______
Ans: Stable System
12. State any two components of automated systems
Ans: Data, People, Software, hardware and procedures
13. What is the full meaning of the acronym SDLC?
Ans: Systems Development Life Cycle
14. Understanding and specifying in details how components of information systems would be built is known as ______
Ans: System Design
15. The interconnection between subsystems is referred to as _______
Ans: Interface
16. Systems which are capable of returning to their desired state when disturbed by external factors are referred to as ______
Ans: Stable System
17. Systems in which the occurrence of events can be perfectly predicted are referred to as ______
Ans: Deterministic System
20. State the full meaning of the acronym XP as used in SAD, and computing in general.
Ans: Extreme Programming
21. A set of interacting elements that respond to inputs to produce outputs is best described as
Ans: System
22. Subsystems in systems communicate among themselves via interconnections referred to as
Ans: interface
23. Processes that accepts no inputs but produce outputs in process modeling are referred to as
Ans: miracle
24. The phase of SDLC where system developers undertake the actual coding of the information system is known as
Ans: system development
25. Interaction within a subsystem of a system is known as
Ans: cohesion
26. CIO is an acronym for _________
Ans: Chief Information Officer
26. State any two reasons why you think its important to study SAD
Ans: 1. The success of most Information Systems depends on good SAD techniques.
2. Modern day businesses rely mostly on computerized Information Systems
3. Widely used in industry - proven techniques.
4. Part of career growth in IT - lots of interesting and well-paying jobs!
5. Increasing demand for systems analysis skills
Assignment 1
Think of any system that you wish to build to automate the business processes of an organization of your choice.
1. Write down any four (4) functional requirements of your chosen system.
2.Write down any(3) non-functional requirements of your chosen system.
Assignment 2
Carefully study the requirements of your chosen, and write down any two(2) use cases for the system.
Using the casual/fully-dressed format, carefully develop one of your use cases.
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