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Computer Science
System Analysis And Design
Quiz 3
Solution
Q.1.
The "big picture" diagram of a system is the
block diagram
logic diagram
system flowchart
program flowchart
None of the above
Q.2.
Which of the following is the most critical requirement of a Passenger Reservation System?
ease of programming
response time
graphical user Interface
printing of tickets
None of the above
Q.3.
A word processor designed for programmers is called
a formatter
a compiler
an editor
a debugger
None of the above
Q.4.
Pointers are useful in
Locating a particular sector of a magnetic disk
Pointing mistakes in input data
Traversing a linked list
All of the above
None of the above
Q.5.
A statement - by - statement description of a procedure is detailed in a;
written narrative
procedure's log
systems flowchart
record layout
None of the above
Q.6.
Cost-Benefit analysis
evaluates the tangible and non-tangible factors
compares the cost, with the benefits, of introducing a computer-based system
estimates the hardware and software costs
All of the above
None of the above
Q.7.
On-line data entry is most suitable in the case of
updating payroll master
entering monthly journal entries
Processing payment of cheque in a bank
All of the above
None of the above
Q.8.
A Pseudocode is
a machine - level code
a random number
a flow chart
Structured English to communicate the logic of a program
None of the above
Q.9.
A Decision - Table is
a way of representing the information flow
a way of representing multiple conditions
a ways to get an accurate picture of the system
All of the above
None of the above
Q.10.
The term used to refer to the checking of outputs of a computer, with the corresponding input documents, is called
auditing around the computer
auditing through the computer
process control
beta-test
None of the above
Q.11.
Which of the following is not a requirement of structured design?
It should be made up of a hierarchy of modules
It should use many GOTO statements
The code should be executed in a top-to-bottom fashion within each module
Each module should be as independent as possible of all other modules, except its parent
None of the above
Q.12.
Which of the following file types has the least life
Master file
Program file
Transaction file
Work file
None of the above
Q.13.
A feasibility study
both (a) and (b)
includes a statement of the problems
considers a single solutions
a list of alternative solution considered
None of the above
Q.14.
A system analyst designs a new system by
identifying sub systems and the interfaces between sub systems
adopting a developed system to the present environment
developing the system as a large, single unit
propose alternatives to the current system
None of the above
Q.15.
"User friendly" computers have ensured that
management requires no system analysis and design.
programmers are no longer needed
structured programming is not needed
All of the above
None of the above
Q.16.
A checksum digit is used for detecting Errors in
Data transmission
Arithmetic operations
Logical operations
All of the above
None of the above
Q.17.
Which of the following is used to derive the address, of a record from the record key
comma
hashing
variable
field
None of the above
Q.18.
Mistakes made in the requirements analysis stage show up in
System design
System development
System testing
System implementation
None of the above
Q.19.
An example of a hierarchical data structure is
array
Link list
tree
ring
None of the above
Q.20.
The records in a file on magnetic tape
can only be accessed serially
are meant for backup
cannot be transformed to a disk file
have to be arranged in a key sequence
None of the above
Q.21.
Data structuring is refined through a process called
structuring process
hierarchical structure
normalization
Relation structure
None of the above
Q.22.
Backup and recovery procedures are primarily implemented to
handle the contingency when a file gets corrupted
to provide data redundancy
to show different versions of data and programs
All of the above
None of the above
Q.23.
_____ use standardized symbols to represent an algorithm.
Flowcharts
Flow diagrams
IPO charts
Pseudocharts
Pseudocode
Q.24.
The background and experience of analyst include;
a background in systems theory and organization behavior
familiarity with the makeup and inner workings of major application areas such as financial accounting, personnel administration, marketing and sales, operations management, model buil
competence in system tools and methodologies and a practical knowledge of one or more programming and data base languages.
All of the above
None of the above
Q.25.
Structured design methodology is an approach to design that adheres to rales based on principles such as
top-down refinement
bottom-up design
data flow analysis
All of the above
None of the above
Q.26.
Reverse video is a technique of
showing data with half brightness
showing data upside down on the screen
hiding confidential data on the screen
emphasizing data by reversing the foreground and background
None of the above
Q.27.
Unit testing is
running the system with line data by the actual user
making sure that the new programs do in fact process certain transactions according to Specifications
is checking the logic of one or more programs in the candidate system
testing changes made in an existing or a new program
None of the above
Q.28.
A file containing multiple indices to the data is called a/an
indexed file
sequential file
indexed-sequential file
inverted file
None of the above
Q.29.
Which of the following is used when a company goes outside its organization to develop a new system?
request for proposal
data flow diagram
systems flowchart
project directory
None of the above
Q.30.
In functional decomposition, the data flow diagram
is ignored
is partitioned according to the "closeness" of the datagrams and data storage items
is partitioned according to the logical "closeness" of the actigrams
both (a) and (c)
None of the above
Q.31.
Which of the following is not a factor in the failure of a systems development project ?
inadequate user involvement
failure of systems integration
size of company
continuation of a project that should have been cancelled
None of the above
Q.32.
Most algorithms follow the format of
Entering the input items, then displaying the input items, and then processing the output items
Entering the input items, then processing the output items, and then displaying the output items
Entering the input items, then processing the input items, and then displaying the output items
Entering the output items, then displaying the output items, and then processing the output items
Entering the output items, then processing the output items, and then displaying the output items
Q.33.
The approach used in top-down analysis and and design is
to prepare flowcharts after programming has been completed
to identify a top level function and then create a hierarchy of lower level modules and components
to identify the top level functions by combining many smaller components into a single entity.
All of the above
None of the above
Q.34.
In the system concepts, term organization
implies structure and order
refers to the mannar in which each component functions with other components of the system.
means that parts of the computer system depend on one the another.
refers to the holism of systems
None of the above
Q.35.
Tracing, of any input record or process, performed on a system, back to its original source, is an
audit trial
report generation
batch processing
conversion
None of the above
Q.36.
The two classification of inputs are:
energies and maintenance
products and waste
maintenance and waste
maintenance and signal
None of the above
Q.37.
A Decision table
represents the information flow
documents rules, that select one or more actions, based on one or more conditions, from a set of possible conditions.
gets an accurate picture of the system
shows the decision paths
None of the above
Q.38.
The structure chart is:
a document of what has to be accomplished
a hierarchical partitioning of the program
a statement of information-processing requirements
All of the above
None of the above
Q.39.
Top Management is more interested in
day-to-day operations
strategic decisions
tactical decision
both b and c
None of the above
Q.40.
Which of the following is a function of the process step of data processing?
protect
index
retrieval
update
None of the above
Q.41.
In a Decision tree
the root is drawn on the left and is the starting point on the decision sequence
the branch, to be followed, depends on the conditions and decisions, to be made
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
All of the above
None of the above
Q.42.
Rapid prototyping proves the quality of a design by
having a program simulate the real system
having the system analyst present an overview of the design to users, programmers, and consultants
having a data flow diagram
both (a) and (b)
None of the above
Q.43.
The black-box concept:
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
assumes that the black box is independent
assumes that inputs and outputs will remain stable
All of the above
None of the above
Q.44.
A system investigation may result from
an analysis investigation
a scheduled systems reviewed
a manager's formal request
All of the above
None of the above
Q.45.
Graphic representation of the control logic of processing functions or modules representing a system, is known as:
Structured analysis
Structured chart
Structured English
System Flow chart
None of the above
Q.46.
Which of the following is an integrated collection of data with minimum redundancy, so that different applications can use the required data.
records
file
DBMS
schema
None of the above
Q.47.
Changes made periodically to a system, after its implementation, is known as system
analysis
design
development
maintenance
none of the above
Q.48.
The first step in systems Development Life Cycle is
database design
system design
preliminary investigation and analysis
graphical user interface
None of the above
Q.49.
Nassi - schneiderman charts
are being replaced by flowcharts
often describe over lapping control structures
are made up of boxes within boxes
both (a) and (c)
None of the above
Q.50.
Which of the following tools is not used in modeling the new system?
decision tables
data dictionary
data-flow diagrams
All of the above
None of the above
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