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