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computer science
systems analysis and design
Questions and Answers of
Systems Analysis And Design
Determination of __________ is the first step toward a good-quality system.(a) Good requirements(b) Good programmers(c) Good infrastructure(d) Good protocols
______________ is a phase of requirements determination.(a) Requirements anticipation(b) Requirements determination(c) Requirements specification(d) All of these
Requirements _________ is a mixed blessing.(a) Anticipation(b) Investigation(c) Specification(d) Determination
____________ are used for requirements investigation.(a) Validation methods(b) Decision tree-based methods(c) Fact-finding methods(d) Testing methods
_____________ is a tool to specify (document) requirements that encompasses roots, branches, and leaves.(a) Decision tree(b) Decision table(c) Structured English(d) Data flow diagram
______________ is a matrix enlisting possible action and condition entries along with suitable actions and condition statements.(a) Decision tree(b) Decision table(c) Structured English(d) Data flow
To collect qualitative type of information _________ tool is mostly used.(a) Interview(b) Questionnaire(c) Record review(d) Testing
To collect factual and quantitative type of information __________ tool is used.(a) Interview(b) Questionnaire(c) Record review(d) Observation
For __________ interview, training and preparation is not needed.(a) Unstructured(b) Structured(c) Exceptional(d) Big
For _____________ interview, evaluation is speedy and uniform.(a) Unstructured(b) Structured(c) Exceptional(d) Big
For ___________ questionnaire short and limited scope answers are expected.(a) Open end(b) Domain specific(c) Closed end(d) Online
For _____________ questionnaire big answers can be expected.(a) Open end(b) Domain specific(c) Closed end(d) Online
_____________ is also used as requirements finding and feasibility testing tool.(a) Prototype(b) Reports(c) System(d) Procedure
For _________________ requirements, requirements anticipation is suitable.(a) Extraordinary(b) Common and typical(c) Big(d) Complex
Requirements investigation utilizes ______________ methods.(a) Fact finding(b) Prototype(c) Both fact finding and prototype(d) Testing
An SRS (documents the determined requirements for the proposed system) is defined as ______________.(a) Simple reliable software(b) Systematic requirements specification(c) Software reusable
_________________ contains valid set of requirements documented in well-organized form and serves as an agreement between the developers and users of the system.(a) SRS(b) Documentation(c) User
An SRS includes _______________.(a) Valid requirements(c) Tentative cost to develop the project(b) Estimated time(d) All of these
Higher-level decisions in the development of system, which are tacit in nature, cannot be put into words. Such requirements can be identified through ________________ fact-finding method.(a) Viewing
___________ are the tools for documenting systems requirements.(a) Decision tree(b) Structured English(c) Decision table(d) All of these
_______________ control in a decision table allows temporary control transfer between decision tables.(a) Perform(b) Go to(c) Return(d) Execute
_______________ control in a decision table allows permanent control transfer between decision tables.(a) Perform(b) Go to(c) Return(d) Execute
_______ are valid representations schemes in structured English.(a) Sequence structure(b) Decision structure(c) Iteration structure(d) All of these
In ___________ systems development approach, splitting the overall task into well-defined subtasks is justified.(a) SDLC(b) Prototype(c) Structured(d) Agile
Which of the following is not a graphical tool for structured systems development?(a) DFD(b) Context-level DFD(c) Structured interview(d) FDD
The main purpose of a DFD is to specify ____________ between systems components.(a) Relation(b) Flow of data(c) Strength(d) Flow of control
The ___________ gives information about relationship between modules of the system and degree of cohesion of the model.(a) Test case diagram(b) Structured chart(c) Entity relation diagrams(d) Flow
In structured analysis and design, a big and complex system is divided into modules by considering main ____________ of the system.(a) Objects(b) Classes(c) Functions(d) Parameters
In object-oriented analysis and design, a big and complex system is divided into modules by considering main ____________ of the system.(a) Relationships(b) Classes (or objects)(c) Functions(d)
________________ is related with the internal strength and bond of a module and _____________ is related with the relationship and dependencies between modules of the system.(a) Cohesion,
Which of the following is the correct process to develop a new system through a structured approach?(a) Study the physical DFD of an existing system and develop logical DFD of the new system, and
Which of the following is correct regarding the data flow diagram?(a) A dataflow may not have label.(b) Data can flow from a data store to another data store directly.(c) Data can flow from data
Full form of FDD is _____________.(a) Functional development diagram(b) Function decomposition diagram(c) Functional data dictionary(d) Function database development
_______________ DFD contains physical information such as roles/responsibilities, equipment identification, and office identification.(a) Conceptual(b) Logical(c) Physical(d) Context level
What is not the use of a DFD?(a) Communication and presentation(b) Understanding and analyzing(c) Demonstrate design(d) Test case generation
Which of the following is not a basic element of structured development of an information system?(a) Graphic description(b) Data dictionary(c) Data flow diagram(d) None of these
Which of the following DFD presents an implementation-independent view of the system under development?(a) Logical(c) Context level(b) Physical(d) Temporal
Developing a description of the system using structured analysis follows a _________ process.(a) Top down(b) Bottom up(c) Hybrid(d) Temporal
____________________ is the common mistake observed while developing a DFD.(a) Directly linking process and data store(b) Directly linking process and external entities(c) Forgetting labels(d) None
A DFD must not contain ____________________.(a) Control information(b) Data labels(c) Data store(d) External entities
A ___________ is a repository of all elements in a system in an organized form.(a) DFD(b) FDD(c) Data dictionary(d) None of these
Data dictionary is used for ________________.(a) Facilitating analysis(b) Managing details(c) Documentation support(d) All of these
Which of the following is not a component of data dictionary?(a) Data structure(b) Data elements(c) Users description(d) None of these
________ is a set of components interacting together for common objectives and has common set of objectives.(a) Process(b) System(c) Package(d) Module
Open systems interacts with its environment for __________.(a) Demand(d) All of these(c) Raw material(d) All of these
Closed system interacts with ___________ while being used.(a) Environment(b) Programmer(c) Systems Analyst(d) Nothing
________ are systems that work in structured environment for lower-level management using predefined rules in mechanical way.(a) Transaction Processing System(b) Management Information System(c)
_______ is capable of not only providing decisions but also providing explanations and reasoning of the decisions taken by the system.(a) Transaction Processing System(b) Management Information
Output of ___________ type of systems is routine and exceptional reports.(a) Transaction Processing System(b) Management Information System(c) Decision Support System(d) Expert System
A/An_________ works on knowledge base and database both.(a) Transaction Processing System(b) Management Information System(c) Decision Support System(d) Expert System
Example of logical boundary of system is __________.(a) Time/Deadline(b) Wide area(c) Campus(d) Town
_________ type of feedback is good but does not contribute much besides appreciation and encouragement.(a) Positive(b) Negative(c) Adaptive(d) Corrective
Systems analysis deals with ___________ are the problems with the existing system, and systems design deals with ___________ it can be solved.(a) When, how(b) How, what(c) What, where(d) What, how
The basic goal of systems analysis and design focuses on _____.(a) Changing interface of the system(b) Better quality procedures(c) Computerization(d) Profit
___________ type of users performs the lower-level transactions.(a) Hands on end users(b) Programmers(c) Admin(d) Top-level managers
According to the well-known data pyramid(DIKW hierarchy), data are ______________ and information is ______________.(a) Processed, synthesized(b) Synthesized, processed(c) Pre-processed, processed(d)
____________ is a committee method to develop systems where responsibility for project decision is delegated to the individuals themselves.(a) Contract-based development(b) Institutional(c) Steering
Which of the following is not a component of a typical system?(a) Input(b) Process(c) Output(d) Environment
______________ is an example of a typical Transaction Processing System (TPS).(a) Bank ATM system for withdraw and deposit(b) Policy analysis(c) Performance reports of employee(d) All of these are TPS
_______________ is an example of a Management Information System (MIS).(a) Performance reports of employee(b) Disease diagnosing system(c) Attendance system(d) Ticket reservation system
__________ is an example of a Decision Support System (DSS).(a) Student monitoring system(b) Maximization of production and given constraints(c) Online shopping system(d) Robot controlling system
_____________ is a single information system that meets the needs of an organization at various levels and across many business functions.(a) Total information system(b) Decision support system(c)
Among which of the following system, ________________ would be comparatively easy to automate?(a) DSS(b) MIS(c) ES(d) TPS
Which of the following is not an approach of developing an information system?(a) SDLC(b) All of these are approaches of systems development(c) Structured(d) Prototype
__________ test deals the acceptability of the system by its target users and ease of use.(a) Economical feasibility(b) Technical feasibility(c) Operational feasibility(d) Interface feasibility
___________ is also used as a feasibility tool.(a) SDLC(b) Prototype(c) Structured (d) None of these
_____________ of development system is used for the development of system that considers systems that affect specific and limited group of users.(a) Institutional approach(b) End user approach(c)
_______________ is an example of system that can be developed with an end user approach.(a) Sectional internal reports and what-if analysis(b) Tax planning system(c) Attendance system for
_________________ is an example of analysis tools.(a) Specification(b) Layout(c) Test case generator(d) Dictionary
_________________ is an example of design tools.(a) Specification(b) Interview(c) Dictionary(d) Questionnaire
________________ are integrated tools that can be used throughout systems analysis and design process.(a) Specification(b) CASE(c) Test case generator(d) Dictionary
______________ is a major limitation of the classical (SDLC) model of systems development.(a) Fixing requirements at certain stage(b) Sequential approach of the model(c) Effort taking approach(d)
________________ approach of systems development is based on diagrams and charts.(a) SDLC(b) Structured(c) Prototype(d) None of these
______________ can suggest new systems development.(a) Managers(b) End users(c) Systems Analysts(d) All of these
Which of the following is not a broad objective of a new systems development?(a) To solve a problem(b) To computerize the business(c) To cut off number of employees(d) None of these
_________________ is a collection of information system which is being developed or under development in an organization.(a) Electronic wallet(b) Portfolio(c) Socket(d) None of these
________________ integration of portfolio is defined as sharing portfolios within branches of an organization.(a) Horizontal(b) Vertical(c) External(d) Any of these
The _______________ projects will not become part of a portfolio but must be reworked and proposed as a fresh project.(a) Feasible(b) Infeasible(c) Special(d) High cost
The primary conductor in Figure 10.2 is one phase of a three-phase transmission line operating at \(345 \mathrm{kV}, 600 \mathrm{MVA}, 0.95\) power factor lagging. The CT ratio is \(1200: 5\) and the
A three-phase \(34.5-\mathrm{kV}\) feeder supplying a 4-MVA load is protected by \(80 \mathrm{E}\) power fuses in each phase, in series with a recloser. The time-current characteristic of the \(80
Three-zone mho relays are used for transmission line protection of the power system shown in Figure 10.25. Positive-sequence line impedances are given as follows.Rated voltage for the high-voltage
Determine the CT ratios for differential protection of a three-phase, \(\Delta-Y\) connected, 15-MVA, 33:11 kV transformer, such that the circulating current in the transformer \(\Delta\) does not
The following article describes key technology areas that have been identified to modernize the transmission and distribution of electric power [14]. Included in this article are discussions of the
How would the value of \(\mathrm{H}\) change if a generator's assumed operating frequency is changed from \(60 \mathrm{~Hz}\) to \(50 \mathrm{~Hz}\) ?
Open PowerWorld Simulator case, which models the Example 6.9 with transient stability data added for the generators. Determine the critical clearing time (to the nearest 0.01 second) for a fault on
With Power World Simulator using the Example 11.9 case determine the critical clearing time (to the closest 0.01 second) for a transmission line fault on the transmission line between bus 44 (LAUF69)
PowerWorld Simulator case Problem 11.26 duplicates Example 11.10, except with the synchronous generator initially supplying \(100 \mathrm{MW}\) at unity power factor to the infinite bus.(a) Derive
PowerWorld Simulator case Problem 11_27 duplicates the system from Problem 11.24, except the generators are modeled using a two-axis model, with the same \(X_{d}^{\prime}\)and \(\mathrm{H}\)
PowerWorld Simulator case Problem 11_28 duplicates Example 11.11 except the wind turbine generator is set so it is initially supplying \(100 \mathrm{MW}\) to the infinite bus at unity power factor.
One of the challenges to the operation of a large, interconnected power system is to ensure that the generators will remain in synchronism with one another following a large system disturbance such
The following article provides an overview of circuit breakers with high voltage ratings at or above 72.5 kV [4]. Circuit breakers are broadly classified by the medium used to extinguish the arc:
Faults at bus \(n\) in Problem 9.8 are of interest (the instructor selects \(n=1,2,3,4\), or 5). Determine the Thévenin equivalent of each sequence network as viewed from the fault bus. Prefault
The zero-, positive-, and negative-sequence bus impedance matrices for a two-bus three-phase power system are\[\begin{aligned}& \boldsymbol{Z}_{\text {bus } 0}=j\left[\begin{array}{c|c}0.10 & 0
Compute the \(4 \times 4\) per-unit zero-, positive-, and negative-sequence bus impedance matrices for the power system given in Problem 9.5. Use a base of 1000 MVA and \(20 \mathrm{kV}\) in the zone
Using the bus impedance matrices determined in Problem 9.51, verify the fault currents for the faults given in Problems 9.10, 9.24, 9.25, 9.26, and 9.27.Data From Problem 9.51:-Compute the \(5 \times
The positive-sequence impedance diagram of a five-bus network with all values in perunit on a 100-MVA base is shown in Figure 9.25. The generators at buses 1 and 3 are rated 270 and 225 MVA,
Using PowerWorld Simulator case, calculate the per-unit fault current and the current supplied by each of the generators for a single line-to-ground fault at the PETE69 bus. During the fault, what
Repeat Problem 9.64, except place the fault at the TIM69 bus.Data From Problem 9.64:-Using PowerWorld Simulator case, calculate the per-unit fault current and the current supplied by each of the
When short circuits are not interrupted promptly, electrical fires and explosions can occur.To minimize the probability of electrical fire and explosion, the following are recommended:Careful design
Power-flow programs are used to analyze large transmission grids and the complex interaction between transmission grids and the power markets. Historically, these transmission grids were designed
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