Engineering, computer science homework help


1. A system has three components and requires all three to be operational24 hours, Monday through Friday. Failure of component 1 occurs asfollows:n Monday = No failuren Tuesday = 5 a.m. to 7 a.m.n Wednesday = No failuren Thursday = 4 p.m. to 8 p.m.n Friday = 8 a.m. to 11 a.m.Calculate the MTBF and MTTR of component 1.2.Research various planned and unplanned occurances of informationunavailability in the context of data center operations.3A customer performs a full backup on the first Sunday of the monthfollowed by a cumulative backup on the other Sundays. They also performan incremental backup each day Monday through Saturday. Tapes aresent offsite for disaster recovery every morning at 10 a.m. The customerexperiences a system crash on the Wednesday of the third week at 3 p.m.,requiring a system recovery. How many days worth of tapes need to beretrieved to perform a recovery?4Describe the benefits of using a virtual tape library over a physical tapelibrary.

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