In a technology company, the IT department is in the process of selecting a new cloud service provider to meet its expanding data storage needs. The team has identified four potential vendors offering various features, pricing models, and service level agreements $($SLAs$).$ As part of their due diligence, the IT team has thoroughly reviewed the SLAs of each vendor to ensure they align with the company's requirements. The IT department wants to ensure they choose a vendor with the most appropriate SLA to maintain critical business operations. Which factors are essential for the IT department to consider when evaluating the SLAs of potential cloud service vendors?