System Analysis and Design Set 22

Questions 211 to 220


211.
From an existing relational database layout; Creating an object model is known as
(a)
Bottom-up engineering
(b)
Top-down engineering
(c)
Backward engineering
(d)
Reverse engineering
(e)
Forward engineering.
212.
Which layer consists of objects with which the user interacts?
(a)
View Layer
(b)
Business Layer
(c)
Access Layer
(d)
Network Layer
(e)
Physical Layer.
213.
For ease of use, maintainability and reusability what are used to group classes together.
(a)
Objects
(b)
Packages
(c)
States
(d)
Use Cases
(e)
None of the above.
214.
During system analysis phase which tool from the following is not used?
(a)
Data Flow Diagram
(b)
Structured English
(c)
Decision Tree
(d)
Decision Table
(e)
Structured Chart.
215.
From the following CASE Tools which is not a component of CASE Tool?
(a)
Diagramming Tools
(b)
Code Generators
(c)
Information Repository
(d)
Debugging Tools
(e)
Both (a) and (b) above.
216.
For specifying a set of conditions and their corresponding actions the following tabular form is used.
(a)
Decision tree
(b)
Decision table
(c)
Structured english
(d)
Data flow diagram
(e)
E-R diagram.
217.
In SDLC the data dictionary contains descriptions of what from the following
(a)
DFD elements
(b)
E-R Diagram
(c)
Use case
(d)
Class Diagram
(e)
Decision table.
218.
Technical feasibility is to determines whether
(a)
The system can provide the right information for the organization’s personnel
(b)
The existing system can be upgraded to use the new technology
(c)
Any restructuring of jobs will be acceptable to the current users
(d)
The organization has the expertise to use the new technology
(e)
The technology needed for the proposed system is available.
219.
Chose the correct option from the following with respect to prototyping
(a)
It is most practical for large scale projects
(b)
It emphasizes getting the design right the first time
(c)
It is the execution of the standard systems development cycle using CASE tools
(d)
It cannot be used when the requirements are not clear
(e)
It involves an iterative and interactive development process with extensive end use involvement.
220.
Chose the most correct option for an association
(a)
It must be described by nouns
(b)
It must have attributes
(c)
It must be based on events
(d)
It must have a 1:M component
(e)
It must be described by a verb or nouns.

Answers



Answer
Reason
211.
d
Creating an object model from an existing relational database layout is referred to as Reverse engineering
212.
a
View layer consists of objects with which the user interacts as well as the objects needed to manage
213.
b
Packages are used to group classes together for ease of use, maintainability, and reusability
214.
e
Structured Chart is not used during system analysis.
215.
d
Debugging Tool is not a component of CASE Tool.
216.
b
A decision table is a tabular form of presentation that specifies a set of conditions and their corresponding actions
217.
a
The data dictionary in SDLC contains descriptions of DFD elements
218.
e
Technical feasibility is an evaluation to determine whether the technology needed for the proposed system is available.
219.
e
Prototyping involves an iterative and interactive development process with extensive end use involvement.
220.
e
An association must be described by a verb or nouns.



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