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Computer Science
System Analysis And Design
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Q.1
Programmers use _____ to organize and summarize the results of their problem analysis.
Flowcharts
Input charts
IPO charts
Output charts
Processing charts
Q.2
The _____ symbol is used in a flowchart to represent a calculation task.
Input
Output
Process
Start
Stop
Q.3
System prototyping helps the designer in
making the programmers understand how the system will function.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
giving a demo of the software, to the system manager to whom he reports
both (a) and (b)
None of the above
Q.4
Which of the following is not a characteristic of a system
operates for some purpose
has homogeneous components
has interacting components
operates within a boundary
None of the above
Q.5
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?
direct
pilot
parallel
phased
None of the above
Q.6
Main characteristic of "ring", in Data structure, is
First record points only to the last record
Last record points to the first record
Many records point to one record
Each record points to all other records
None of the above
Q.7
Which of the following is not considered a tool at the system Design phase?
Data-Flow Diagram
Decision Table
Pie chart
System Flowchart
None of the above
Q.8
Which of the following is a graphic representation of the modules in the System and the interconnection between them
Pie chart
Flow chart
Structural chart
System chart
None of the above
Q.9
Structured Programming involves
decentralisation of program activity
functional modularisation
localisation of errors
All of the above
None of the above
Q.10
To reconstruct a system, which of the following key element(s) must be considered :
feedback and environment
control and processors.
outputs and inputs
All of the above
None of the above
Q.11
Which of the following is not considered as a tool at the system design phase?
piechart
data-flow diagram
decision table
systems flowchart
None of the above
Q.12
To avoid errors in transcription and transposition, during data entry, the System Analyst should
provide for a check digit
provide for a hash totals
provide batch totals
All of the above
None of the above
Q.13
A group of related fields, is known as
tuple
schema
records
file
None of the above
Q.14
Advantages of data base system is (are)
storage space duplication is eliminated
all applications share centralized files
data are stored once in the data base and are easily accessible when needed
All of the above
None of the above
Q.15
The conditions immediately outside a system is called
The boundary
The interface
The environment
The protocols
None of the above
Q.16
A feasibility document should contain all of the following except:
project name
problem descriptions
feasible alternative
data-flow diagrams
None of the above
Q.17
The starting point for development of an MIS is;
identification of business processes that are the essence of the business
a distributed database management
the system has a large number of PCs and a LAN.
purchase of a mini computers
None of the above
Q.18
Sequential or series 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.19
A consideration evaluated by management when planning to convert to a computer system is :
maintenance
available software
CPU sized speed
All of the above
None of the above
Q.20
Which of the following is used when a company goes outside its organization to develop a new system?
data flow diagram
systems flowchart
project dictionary
request for proposal
Norte of the above
Q.21
The records in a file or magnetic tape
can only be accessed serially
have to be arranged in a key sequence
are meant for backup
cannot be transferred to a disk file
None of the above
Q.22
Acceptance 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 systems
testing changes made in an existing or a new program
None of the above
Q.23
The _____ symbol is used in a flowchart to represent a step that gets information from the user.
Input/Output
Process
Selection/repetition
Start/Stop
None of the above
Q.24
Direct-access organization
means storing records in contiguous blocks according to a key.
Stores records sequentially but uses an index to locate records
uses an index for each key type
has records placed randomly throughout the file
None of the above
Q.25
In top down analyis and design
each succeeding phase is more detailed than the phase before it
each succeeding phase is as detailed as the phase before it.
each succeeding phase is less detailed than the phase before it
aLL of the above
None of the above
Q.26
A system design aid should primarily
help analyse both data and activities
help in documentation
generate code
using a graphical user interface
None of the above
Q.27
On the feasibility committee, department representatives serve as:
direct users of the new system
liaison to their departments
ready sources of information
All of the above
None of the above
Q.28
The short statements that represent the steps the computer needs to follow to solve a problem are called
Flowcharts
Flow diagrams
IPO charts
Pseudocharts
Pseudocode
Q.29
Indexed-Sequential organization
means storing records in contiguous blocks according to a key.
Stores records sequentially but uses an index to locate records
uses an index for each key type
has records placed randomly throughout the file
None of the above
Q.30
Management's decision to rent a computer system may be based upon
tax advantages
desire to avoid a large one-time payment
operational flexibility in changing hardware
All of the above
None of the above
Q.31
The rule(s) to follow in constructing decision tables is (are):
a decision should be given a name
the logic of the table is independent of the sequence in which conditions rules are written, but the action takes place in the order is which the events occur.
standardized language must be used consistently.
All of the above
None of the above
Q.32
Elapsed time, between initiating a query and receiving a response is called
response time
waiting time
processing time
Turnaround time
None of the above
Q.33
Which are the tools not used for System Analysis
Decision table
Data Flow Diagram
Flowcharts
System - test data
None of the above
Q.34
During the system study, the executive vice-president and the other managers exercise their responsibility of
planning
controlling
directing
organizing
None of the above
Q.35
Which of the following is (are) not a tool for Application Prototyping?
Application generators
third generation language
screen generators
report generators
None of the above
Q.36
Back-up procedure helps in
restoring the operation whenever there is a disk failure
restoring both application and system software whenever there is disk corruption.
restoring the data files whenever there is a system crash
All of the above
None of the above
Q.37
Which of the following appropriately explains the desirable characteristic of good system design?
Modular approach
Proper documentation
Conversion
Long discussions
None of the above
Q.38
Data manipulation language (DML)
describes how data are structured in the data base
specifies for the DBMS what is required; the techniques used to process data
determine how data must be structured to produce the user's view
All of the above
None of the above
Q.39
An example of a hierarchical data structure is
array
link list
tree
All of the above
None of the above
Q.40
On a systems flowchart, the online manual keeping of input data is identified by using the
online storage symbol
Online keyboard symbol
keeping operation symbols
manual operation symbols
None of the above
Q.41
The set of. instructions for how to tie a bow is an example of the _____Structure.
Control
Repetition
Selection
Sequence
switching
Q.42
Which of the following is not a characteristic of good test data
users do not participate at this preliminary stage
should be comprehensive
every statement should be executed
All of the above
None of the above
Q.43
In the system concepts, term Integration
implies structure and order
refers to the manner in which each component functions with other components of the system.
means that parts of the computer system depend on one another.
refers to the holism of systems
None of the above
Q.44
To run the old system and the new system at the same time for a specified period, the system implementation approach used is
pilot
phased
parallel
direct
None of the above
Q.45
The mistake, committed by interchanging two digits in a numeric held, during data entry, is called
transposition error
transcription error
Beta testing error
Alpha testing error
None of the above
Q.46
Decision tree uses
pictorial depictation of alternate conditions
nodes and branches
consequences of various depicted alternates
All of the above
None of the above
Q.47
Problem analysis is done during
system design phase
systems analysis phase
before system test
All of the above
None of the above
Q.48
Top-down programming is
a group of related fields
a map of the programmer's view of the data
an approach in which the top module is first tested then program modules are added from the highest level to the lowest level
a series or group of components that perform one or more operations of a more complex system
None of the above
Q.49
Managers who are potential users of the MIS
select the optimum equipment configurations
evaluate alternate equipment configurations
describe information needs
All of the above
None of the above
Q.50
Positive 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
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