Software Reliability and Fault Tolerance MCQs

Non-occurrence of improper alteration of information is known as___________________?

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A. Available Dependability
B. Confidential Dependability
C. Maintainable Dependability
D. Integral Dependability
✅ The correct answer is option D.
Explanation: Integrity is to keep the original content safe from alteration.

Which one of the following is not a software quality model ?

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A. ISO 9000
B. McCall model
C. Boehm model
D. ISO 9126
✅ The correct answer is option A.
Explanation: ISO-9000 series of standards is a set of document dealing with quality systems that can be used for quality assurance purposes.

The CMM model is a technique to____________________?

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A. automatically maintain the software reliability
B. improve the software process
C. test the software
D. all of the mentioned
✅ The correct answer is option B.
Explanation: Capability Maturity Model (CMM) is a strategy for improving the software process, irrespective of the actual life cycle model used.

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

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A. Reliability
B. Efficiency
C. Functionality
D. Usability
✅ The correct answer is option C.
Explanation: All the Characteristics mentioned in the question are related to achievement of the basic purpose for which the software is being engineered, which is functionality.

In ISO 9126, time behavior and resource utilization are a part of___________________?

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A. maintainability
B. portability
C. efficiency
D. usability
✅ The correct answer is option C.
Explanation: A set of attributes that bear on the relationship between the level of performance of the software and the amount of resources used, under stated conditions.

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

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A. greater than 1
B. less than 1
C. greater than 2
D. less than 2
✅ The correct answer is option C.
Explanation: N-version programming (NVP), also known as multiversion programming or multiple-version dissimilar software, is a method or process in software engineering where multiple functionally equivalent programs are independently generated from the same initial specifications.