What are the essential elements to have in BR/DR plans? When is a disaster considered officially \"over\"? Spell out and provide definitions for the following acronyms: COOP MTBF MTTR RPO RTO Solution Essential elements in BR/DR plans are: MTBF: Mean Time Between Failure It is a dependability term used to give the amount of failures per million hours for a product. This is the most common examination about a product’s life duration, and is significant in the decision-making procedure of the end user. MTBF is significant for business and integrators than for consumers. MTTR : Mean Time To Repair It is the time required to restore a failed hardware component. In an operational system, repair generally means restoring a failed hardware element. RPO: Recovery Point Objective It expalin the period of time that pass during the disturbance before the amount of data lost during that period exceeds the Business plan\'s maximum acceptable threshold. RTO: Recovery Time Objective It is the period of time and a service point within which a business process must be restored after a disaster in order to avoid improper penalties connected with a break in continuity..