Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

Design and Implementation

Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the change has not introduced new faults ?

Design and Implementation /
Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the change has not introduced new faults ?

A. Regression Test
B. Smoke Test
C. Alpha Test
D. Beta Test

Explanation: Regression test seeks to uncover new software bugs in existing functional and non-functional areas of a system after changes have been made to them.

Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the change has not introduced new faults ? Read More »

Design and Implementation

In which test design each input is tested at both ends of its valid range and just outside its valid range ?

Design and Implementation /
In which test design each input is tested at both ends of its valid range and just outside its valid range ?

A. Boundary value testing
B. Equivalence class partitioning
C. Boundary value testing AND Equivalence class partitioning
D. Decision tables

Explanation: Boundary value analysis is a software testing technique in which tests are designed to include representatives of boundary values.

In which test design each input is tested at both ends of its valid range and just outside its valid range ? Read More »

Design and Implementation

Specifying a set of test cases or test paths for each item to be tested at that level is known as__________________?

Design and Implementation /
Specifying a set of test cases or test paths for each item to be tested at that level is known as__________________?

A. Test case generation
B. Test case design
C. ALL of the mentioned
D. None of the mentioned

Specifying a set of test cases or test paths for each item to be tested at that level is known as__________________? Read More »

Design and Implementation

In factory method pattern, the framework must instantiate classes but it only knows about the abstract classes, which it cannot initiate. How would one solve this problem ?

Design and Implementation /
In factory method pattern, the framework must instantiate classes but it only knows about the abstract classes, which it cannot initiate. How would one solve this problem ?

A. encapsulating the knowledge of which document subclass to is to be created and
B. moving this knowledge out of the framework
C. instantiating the application specific documents without knowing their class
D. all of the mentioned

Explanation: Following all the options in order will solve the factory method problem.

In factory method pattern, the framework must instantiate classes but it only knows about the abstract classes, which it cannot initiate. How would one solve this problem ? Read More »

Design and Implementation

Which design pattern defines one-to-many dependency among objects ?

Design and Implementation /
Which design pattern defines one-to-many dependency among objects ?

A. Singleton pattern
B. Facade Pattern
C. Observer pattern
D. Factory method pattern

Explanation: Observer pattern defines one-to-many dependency among objects so that when one object changes its state, all its dependents are notified.

Which design pattern defines one-to-many dependency among objects ? Read More »

Design and Implementation

Which pattern prevents one from creating more than one instance of a variable ?

Design and Implementation /
Which pattern prevents one from creating more than one instance of a variable ?

A. Factory Method
B. Singleton
C. Observer
D. None of the mentioned

Explanation: In singleton pattern, the class itself is made responsible for keeg track of its instance.Thus it ensures that no more than one instance is created.

Which pattern prevents one from creating more than one instance of a variable ? Read More »

Design and Implementation