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Software Quality Assurance Questions and Answers

21.

Key process areas of CMM level 4 are also classified by a process which is

Exam Year(s)

UGC NET - 2012,

Answer: C

The official key gives CMM level 5.

In the Capability Maturity Model the key process areas of level 4, quantitative process management and software quality management, are measured and controlled. The key reads the question as asking for the level that is classified together with level 4 for that kind of process, which is level 5, optimising. Level 2 (A) is the repeatable stage, with project management processes, and level 3 (B) is the defined stage, so neither is paired with level 4 here. The wording is loose, so the answer follows the key.

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22.

If a process is under statistical control, then it is

Exam Year(s)

UGC NET - 2012,

Answer: C

A process under statistical control is predictable.

When a process is in statistical control, its variation comes only from common causes and stays within known limits, so its future results can be forecast within those limits. It may still be measured or maintained when it is out of control, and verifiability is about checking a product against requirements, so options (A), (B) and (D) do not capture what statistical control gives.

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23.

Reliability of software is directly dependent on

Exam Year(s)

UGC NET - 2012,

Answer: B

The reliability of software depends directly on the number of errors present.

Reliability is the probability that the software will run without failure for a stated time, and failures are caused by errors in it. The fewer the errors, the more reliable it is. The quality of the design (A) affects reliability only through the errors it leaves, the engineers' experience (C) is an indirect factor, and the user requirement (D) is what the software is built to meet, not what decides how often it fails.

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