It is said that the goal for availability of a communications system is "five-9s". What is meant by this?
- A down time of .00001% is unacceptable.
- A network needs to be available 99.999% of the time.
- Five percent of all network expense covers 99% of user requirements.
- The most critical time for network availability is from 9:00 to 5:00 p.m. five days a week.
- The best time to do maintenance on a network is from 5:00 p.m. to 9:00 a.m. five days a week.
Exam with this question: CCNA Discovery 2: DsmbISP Chapter 3 Exam
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