Software Engineering Mcqs

Page No. 119

Which of the following approaches are used to achieve reliable systems?


aFault prevention


bFault removal


cFault tolerance


dAll of the mentioned


View Answer All of the mentioned

In N-version programming which is the independent generation of N, the value of N is___________________?


agreater than 1


bless than 1


cgreater than 2


dless than 2


View Answer greater than 2

It is imperative for a communicating processes to reach consistent recovery points to avoid the __________________ effect, with backward error recovery mechanism ?


aStatic


bDynamic


cDomino


dWhirlpool


View Answer Domino

A system maintaining its integrity while accepting a temporary halt in its operation is said to be in a state of___________________?


aFull Fault Tolerance


bGraceful Degradation


cFail Soft


dFail Safe


View Answer Fail Safe

What type of fault remains in the system for some period and then disappears ?


aPermanent


bTransient


cIntermittent


dAll of the mentioned


View Answer Transient

NHPP stands for__________________?


aNon Homogeneous Poisson Product


bNon-Hetrogeneous Poisson Product


cNon-Hetrogeneous Poisson Process


dNon Homogeneous Poisson Process



Suitability, Accuracy, Interoperability, and security are what type quality attribute of ISO 9126 ?


aReliability


bEfficiency


cFunctionality


dUsability


View Answer Functionality

What is MTTF ?


aMaximum time to failure


bMean time to failure


cMinimum time to failure


dNone of the mentioned


View Answer Mean time to failure

How many product quality factors are proposed in McCall quality model ?


a2


b 3


c11


d8


View Answer 3

Which of the following is not a phase of “bathtub curve” of hardware reliability ?


aUseful Life


bBurn-in


cWear-out


d Time


View Answer Time

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