MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Hardware can wear out due to some environmental issues like dust, excessive temperature, etc. But software cannot wear out because according to user demands, software needs to be updated & demands may increase one after another.

Detailed explanation-2: -Software doesn’t wear out. However, it does deteriorate with maintenance as shown below. During its life, software will undergo changes and it is likely that some new defects will be introduced as a result of this, causing the failure rate curve to spike as shown above.

Detailed explanation-3: -Software can decay just like physical items. Maybe the software has been forgotten. Perhaps it’s full of technical debt, or update issues have caused the problem. Whatever the cause, software performance can deteriorate over time.

Detailed explanation-4: -Software rot (bit rot, code rot, software erosion, software decay, or software entropy) is either a slow deterioration of software quality over time or its diminishing responsiveness that will eventually lead to software becoming faulty, unusable, or in need of upgrade.

Detailed explanation-5: -Software does not age, rust, wear-out, deform or crack. There is no environmental constraint for software to operate as long as the hardware processor it runs on can operate.