Suppose the search field is V = 9 bytes long, the disk block size is B = 512 bytes, a record pointer Pr is 7 bytes, and a block pointer Pb is of 6 bytes. Each B-tree node can have at most p tree pointers, p- 1 data pointers and p - 1 search key field values. These must fit into a single disk block if each B-tree node is corresponds to a disk block. What is the average number of block pointers at 2d level of B-tree, given that B-tree is 69% full.

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Fundamentals of blockchaining

In a business network, the tracking assets and the process of recording transactions are facilitated by the shared immutable ledger called a blockchain. Assets are of two types they are tangible and intangible. The tangible assets are land, house, cash, etc. The intangible assets are copyrights, branding, properties patterns, intellectual property, etc. On a blockchain network, anything that has a value can be tracked and it can be traded.