Roll. NO

RAJALAKSHMI ENGINEERING COLLEGE, CHENNAI 602 105.DEPARTMENT OF INFORMATION TECHNOLOGY

UNIT TEST IIDate :

Sub. Code : SE7006Max. Marks : 60

Sub. Name : Software ReliabilityDuration : 95 min

Year : II, M.E SE

Answer All QuestionsPART A [15 x 2 = 30 Marks]1) Define Hazard Rate. How it is related software Reliability?2) List the major objectives of software program in order to draw the boundaries of software reliability?3) Define transition probability.4) What is the difference between failure intensity and failure density , as used in software reliability model.5) Isn't it true that a fault can cause multiple failure?6) List the major causes for an error?7) What do you mean by Inherent fault?8) How can the number of faults in a program vary with the environment in which the program is used or tested? Isn't the number of faults a fixed number?9) List the general assumption of general poisson type models?.10) Define the general concepts of markov process.11) List the general assumption of general binomial type models?.12) Define the fault reduction factor for a poisson type model.13) Compare the binomial type & poisson type models based on failures experienced.14) List the general assumption of poisson type models for Finite failures?15) List major theme of historical development of software reliability models?Answer All QuestionsPART B [15+15 = 30 Marks]

16) Explain briefly about General Poisson Type Model (15)17) a) i) Explain the various model classification scheme of software reliability models.(5) ii) Explain briefly about the general model characteristics of software reliability models?(10)(OR)17) b) i) Explain the comparison criteria of software reliability models(15)

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