3 votes 3 votes What is the availability of a software with the following reliability figures? Mean Time Between Failure (MTBF) = 25 days Mean Time To Repair (MTTR) = 6 hours 1% 24% 99% 99.009% IS&Software Engineering gateit-2004 is&software-engineering software-reliability normal + – Ishrat Jahan asked Nov 2, 2014 retagged Nov 13, 2017 by Arjun Ishrat Jahan 5.1k views answer comment Share Follow See 1 comment See all 1 1 comment reply Overflow04 commented Oct 8, 2022 reply Follow Share @Deepak Poonia @Arjun @Abrajyoti00 Software Engineering is not present in syllabus, so out of syllabus tag should be added. 0 votes 0 votes Please log in or register to add a comment.
Best answer 7 votes 7 votes Availability = MTBF/(MTBF+MTTR) * 100 = 25*24/(25*24 + 6) * 100 = 99.009 % Aditya answered Nov 20, 2014 selected Jan 30, 2015 by ankitrokdeonsns Aditya comment Share Follow See 1 comment See all 1 1 comment reply felics moses 1 commented Dec 1, 2020 reply Follow Share Availability = ( MTTF / MTBF ) * 100 % MTBF = MTTF + MTTR So Availability = ( 25 days - 6 hours ) / 25 days * 100 % = 99 % Answer is (c) 0 votes 0 votes Please log in or register to add a comment.