A. Useful Life
B. Burn-in
C. Wear-out
D. Time
Explanation: Time is the horizontal dimension on which the bathtub curve is built and not the phase.
A. Integrity
B. Dependability
C. Redundancy
D. None of the mentioned
Explanation: All fault-tolerant techniques rely on extra elements introduced into the system to detect & recover from faults.
A. time
B. efficiency
C. quality
D. speed
Explanation: Software Reliability mainly concerned with the time component. It can be seen in various models like Basic Execution Time Model and Logarithmic Poisson Execution Time Model.
A. ISO 9000
B. McCall model
C. Boehm model
D. ISO 9126
Explanation: ISO 9000 is software certification.
A. MTTR
B. MTTF
C. MTSF
D. MTBF
Explanation: FIT reports the number of expected failures per one billion hours of operation for a device. This term is used particularly by the semiconductor industry but is also used by component manufacturers.
A. three
B. four
C. five
D. six
Explanation: The five levels are: initial, repeatable, defined, managed, optimizing
A. Reliability
B. Efficiency
C. Functionality
D. Usability
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.