Monday, 2 April 2018

                          Software Testing Methodologies





Software Testing Methodologies

1. In Bottom-Up integration testing, which one of the followings that you may need to develop?

Select one:
a. Interfaces
b. Stubs
c. Connectors
d. Drivers Correct
Feedback
The correct answer is: Drivers

2.A rich extention of FSM 

Select one:
a. None
b. State Charts
c. Petri nets Incorrect
d. Path testing
Feedback
The correct answer is: State Charts

3.A Message is

Select one:
a. A communication between two Modules
b. A mechanism to move data across Nodes
c. A communication between two Nodes Incorrect
d. A programming language mechanism by which one unit transfers control to another unit
Feedback
The correct answer is: A programming language mechanism by which one unit transfers control to another unit

4.statement w=v+n+1 use of v

Select one:
a. is a use of v and n
b. is a use of v only Incorrect
c. ALL
d. is a use of n only
Feedback
The correct answer is: is a use of v and n


5.Which View of class testing is used for Inheritence?

Select one:
a. Execution View Incorrect
b. Static View
c. None 
d. Compile Time View 
Feedback
The correct answer is: Compile Time View 


6.Data Flow Testing refer to

Select one:
a. Point at which the variable receive values and the point at which it is used Correct
b. Inputting Data
c. None of the options
d. Understanding how Data changes to Result
Feedback
The correct answer is: Point at which the variable receive values and the point at which it is used


7.The following is not a define-reference anomaly:

Select one:
a. A variable that is defined but never used (referenced) Incorrect
b. None of the option
c. A variable that is defined twice before it is used
d. A variable that is used but never defined
Feedback
The correct answer is: None of the option


8.Big Bang integration approach:

Select one:
a. None of the option
b. Suffers with problem of fault isolation
c. Number of integration testing sessions is 2
d. Requires creation of a large number of stubs and drivers Incorrect
Feedback
The correct answer is: Suffers with problem of fault isolation


9.Adding Variables and Conditions to FSM is called

Select one:
a. Advanced FSM
b. None
c. Extended FSM Correct
d. FSM++
Feedback
The correct answer is: Extended FSM


10.MM-path is

Select one:
a. A path between modules
b. An edge Incorrect
c. An interleaved sequence of MEPs and Messages
d. A path from Source node to Sink node
Feedback
The correct answer is: An interleaved sequence of MEPs and Messages


11.Traverse every path in the model under the constraint that any transition in the path is traversed at most N times

Select one:
a. Transition Coverage Testing
b. State Based Testing
c. Basis path Testing Incorrect
d. Constraint Path Testing
Feedback
The correct answer is: Constraint Path Testing


12.Call Graph (CG) based approach is

Select one:
a. Only Pair-wise integration
b. Neither Pair-wise integration nor Neighborhood integration Incorrect
c. Only Neighborhood integration
d. Both Pair-wise and Neighborhood integration
Feedback
The correct answer is: Both Pair-wise and Neighborhood integration


13.Software Test Drivers are

Select one:
a. Programs which simulate the behaviors of software components that are the control modules of a under test module Correct
b. Programs which simulate the behaviors of software components that are the dependent modules of a under test module
c.  Used to connect a software with a driver
d. None of the options
Feedback
The correct answer is: Programs which simulate the behaviors of software components that are the control modules of a under test module


14.Useful formalism to express concurrency and timing - this is true for which model?

Select one:
a. Petri Nets Correct
b. FSM
c. StateCharts
d. None
Feedback
The correct answer is: Petri Nets


15.Data Flow testing refers to forms of structural testing that focus on:

Select one:
a. The point at which variables receive values and the point at which these values are used (or referenced)
b. Serves as a “reality check” on path testing
c. All options Correct
d. An unifying structure of test coverage metrics
Feedback
The correct answer is: All options


16.One of the  issues with flattened class could be the following:

Select one:
a. A flattened class will not be part of a final system, so no uncertainty remains
b. A flattened class will be part of a final system, so some redundancy of testing remains
c. A flattened class will not be part of a final system, so some uncertainty remains Correct
d. A flattened class will not be part of a final system, so no uncertainty remains
Feedback
The correct answer is: A flattened class will not be part of a final system, so some uncertainty remains


17.Destructors are executed when 

Select one:
a. object of class is partially destroyed
b. object of class is destroyed
c. object of class is define to destroy
d. object of class is about to destroy Incorrect
Feedback
The correct answer is: object of class is destroyed


18.Different strategies used in state model to design test cases are 

Select one:
a. Transition Testing, Coverage Testing Incorrect
b. State Testing, Code Testing
c. State Testing, Transition Testing, Path Testing
d. Code Testing, Path Testing
Feedback
The correct answer is: State Testing, Transition Testing, Path Testing


19.Characteristics of Path-based Integration 

Select one:
a. Interfaces are behavioural
b. Interfaces are behavioural
c. None 
d. Co-functioning, Interfaces are structural and interactions are behavioural Correct
Feedback
The correct answer is: Co-functioning, Interfaces are structural and interactions are behavioural



20.Fault categories include

Select one:
a. transmission error
b. new state error,fault state error,operation error,transfer error
c. operation error,transfer error,extra state error,missing state error Correct
d. operation error and transfer error
Feedback
The correct answer is: operation error,transfer error,extra state error,missing state error



21.Both drivers and Stubs will be used in which approach of integration?

Select one:
a. Big bang
b. Bottom-up Incorrect
c. Sandwich
d. Top-down
Feedback
The correct answer is: Sandwich


22.MM path testing is used is

Select one:
a. object oriented testing
b. model based testing
c. 

state based testing 
d. 

System testing Incorrect
Feedback
The correct answer is: object oriented testing



23.Role of inheritance complicates the choice of classes as units, a technique followed to simplify the testing of these units

Select one:
a. Avoid using inheritance
b. flattening of classes
c. Minimize use of such inheritance Incorrect
d. relook at the design
Feedback
The correct answer is: flattening of classes



24.Flattening of classes is

Select one:
a. Required for testing subclasses
b. Creates classes that are a part of the final product
c. Involves merging methods of a sub-class Incorrect
d. Required to overcome the challenges posed by encapsulation concept of OO systems
Feedback
The correct answer is: Required for testing subclasses



25.Software Test Stubs are 

Select one:
a. Programs which simulate the behaviors of software components that are the dependent modules of a under test module
b. Used to connect a software with a driver
c. Programs which simulate the behaviors of software components that are the control modules of a under test module Incorrect
d. None of the options
Feedback
The correct answer is: Programs which simulate the behaviors of software components that are the dependent modules of a under test module



26.Given an Extended FSM Diagram, one must test the following:

Select one:
a. All states in the EFSM
b. All paths in the EFSM
c. All states, transitions and paths in the EFSM Correct
d. All states and transitions in EFSM
Feedback
The correct answer is: All states, transitions and paths in the EFSM


27.Operation error in a fault model is:

Select one:
a. Output values are garbled
b. Error generated upon transition like incorrect output function
c. Corrupt input Incorrect
d. Incorrect input function
Feedback
The correct answer is: Error generated upon transition like incorrect output function


28.In Data Flow Testing, an Use is a statement that __________ a value of variable

Select one:
a.  references
b. Manipulates
c. validates Incorrect
d. All options
Feedback
The correct answer is:  references


29.Which View of class testing is used Abstract classes?

Select one:
a. Execution View
b. None 
c. Static View Incorrect
d. Compile Time View 
Feedback
The correct answer is: Execution View



30.What is the BEST definition of flattened class?

Select one:
a. A flattened class is an original class expanded to include all the attributes and operations it inherits Correct
b. A flattened class is an original class expanded to include all the attributes but not the operations it inherits
c. A flattened class is an original class expanded to include all the attributes of the class itself.
d. A flattened class is an original class expanded to include all the attributes and functions.
Feedback
The correct answer is: A flattened class is an original class expanded to include all the attributes and operations it inherits

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