CS504- Quiz Conference
Dated 16-11-2011 time 8.47 pm
Sahahzad
shahzad982: Data Flow diagram (DFD) does not capture control flow information; it just shows the flow of the data in a system.
Select correct option:
TRUE
FALSE
shahzad982: In data flow diagram (DFD), Create, Update, Delete and Read operations are normally called:
Select correct option:
CRUD operations
DURC operations
RUDC operations
CDUR operation
shahzad982: Data cannot flow from one external entity to other external entity because:
Select correct option:
It will get corrupted
It is not allowed in DFD
An external entity has no mechanism to read or write
Both are outside the context of the system
shahzad982: System models include:
Select correct option:
User business processes
User activities for conducting the business processes
Processes that need to be automated
All of the given options
shahzad982: In Data Flow Diagram (DFD), one data store can directly copy the data from another data store
Select correct option:
TRUE
FALSE
shahzad982: An arrow in Data Flow Diagram (DFD) represents
Select correct option:
Direction of flow of data
Processing of data
External agent
Internal agent
shahzad982: Regarding Flow Chart which of the following statement(s) is/are TRUE:
Select correct option:
Flow charts are usually used to describe flow of control in a system
Flow Charts just show the flow of the data in a system.
Looping or Iterations can not be represented in Flow Chart
None of given options
shahzad982: The condition that must be met before the use case can be invoked, is called:
Select correct option:
Pre-Condition
Post-Condition
Pre-Assertion
Post-Assertion
shahzad982: In use case diagram, the scope of the system is defined by:
Select correct option:
Actor
Entity
System Boundary
"Extends" relationship
shahzad982: By levelling a DFD (adding more levels of abstraction) we mean
Select correct option:
Splitting it into different levels (Not Sure)
Make its structure uniform
Expanding a process into one with more sub-processes giving more detail
Summarizing a DFD to specify only the essentials
Syed M. Umair Saulat
An arrow in Data Flow Diagram (DFD) represents
Select correct option:
Direction of flow of data
Processing of data
External agent
Internal agent
data flow diagram (DFD), Create, Update, Delete and Read operations are normally called:
Select correct option:
CRUD operations
DURC operations
RUDC operations
CDUR operation
In Data Flow Diagram (DFD), data flow can:
Select correct option:
Only originate from an external entity
Only terminate in an external entity
Originate and terminate in an external entity
Either originate or terminate in an external entity but not both
In use case diagram, an ellipse signifies a(n):
Select correct option:
actor
class
use case
system boundary
Data Flow Model:
Select correct option:
Captures the flow of data in a system (not sure)
Helps in developing an understanding of system's functionality
Describes data origination, transformations and consumption in a system
All of the given options
In use case diagram, the scope of the system is defined by:
Select correct option:
Actor
Entity
System Boundary
"Extends" relationship
The <<extend>> relationship between use cases would be used when behavior in the extending use case is __________ the extended use case.
Select correct option:
always needed by
never needed by
sometimes needed by
None of the given options
An external entity that interacts with a system is called a(n):
Select correct option:
use case
actor
stakeholder
association
A context diagram:
Select correct option:
describes detailed design of a system
is a DFD which gives an overview of the system
is a detailed description of a system
is not used in drawing a detailed DFD
By levelling a DFD (adding more levels of abstraction) we mean
Select correct option:
Splitting it into different levels (Not Sure)
Make its structure uniform
Expanding a process into one with more sub-processes giving more detail
Summarizing a DFD to specify only the essentials
anna: MC100200808 : Irsa Anum
Question # 1 of 10 ( Start time: 09:02:54 PM ) Total Marks: 1
A context diagram:
Select correct option:
describes detailed design of a system
is a DFD which gives an overview of the system
is a detailed description of a system
is not used in drawing a detailed DFD
Question # 4 of 10 ( Start time: 09:04:14 PM ) Total Marks: 1
A use case represents:
Select correct option:
a class, its attributes and operations.
an operation's interface and signature.
the role a user plays when interacting with the system.
the system's functionality for a particular purpose.
Question # 6 of 10 ( Start time: 09:04:47 PM ) Total Marks: 1
Regarding Data Flow Model, which of the following statement(s) is/are true:
Select correct option:
It captures the transformation of data between processes/functions of a system
Processes on a data flow can operate in parallel
Only those processes are represented which we need to automate
All of the given options
Question # 7 of 10 ( Start time: 09:05:25 PM ) Total Marks: 1
System models include:
Select correct option:
User business processes
User activities for conducting the business processes
Processes that need to be automated
All of the given options
Question # 8 of 10 ( Start time: 09:06:10 PM ) Total Marks: 1
In Data Flow Diagram, the entity or system, outside the boundary of this system is called
Select correct option:
Process
Data Flow
External Agent
Data Store
Question # 9 of 10 ( Start time: 09:06:29 PM ) Total Marks: 1
In use case diagram, the scope of the system is defined by:
Select correct option:
Actor
Entity
System Boundary
"Extends" relationship
Question # 10 of 10 ( Start time: 09:06:48 PM ) Total Marks: 1
In use case diagram, an ellipse signifies a(n):
Select correct option:
actor
class
use case
system boundary
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