It depends on the protocol used. TLS is used for application level end-to-end encryption so it is somewhere at levels 5..7 (the distinction between these levels is blurry). Protocols like IPSec or OpenVPN instead work at the level of IP protocol, i.e. network layer which is layer 3.
Financial Data Management. The accounting structure of a company is an essential component to business operations. One of the primary roles of an accountant usually involves the collection and maintenance of financial data, as it relates to a company or firm.he accountant usually has a variety of administrative roles within a company's operations. In a smaller business, an accountant's role may consist of primarily financial data collection, entry and report generation.
The Role of the Financial Manager. The role of a financial manager is a complex one, requiring both an understanding of how the business functions as a whole and specialized financial knowledge. The head of the financial operations is called the chief financial officer (CFO).