Answer and Explanation:
a) Key for the relation courses is HS.
b) FD's are already minimal basis, as no attributes can be removed from the left side, right side is having only single attributes and none of the FD can be removed as given in the question.
c) By using the 3NF synthesis algorithm, the final set of relations obtained will be CT, HRC, HTR, HSR, CSG (FD'S are already proved to be minimal basis in part (b)). All the relations are in BCNF.
Answer:
Block Chain is a system of recording information that makes it difficult or impossible to change, hack, or cheat the system.
A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.
Hope this helps.
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Don’t know what the answer is but do you, I have the test for that today
Answer:
In order to reduce the risk of accidents on the roads.
Explanation:
The special equipment is used when testing eyesight for a driver's license in order to reduce the risk of accidents on the roads. Good eyesight is very important for good and safe driving so to find out the eyesight of the driver, the license officer used special equipment in order to check driver's eyes. If the eyesight is good, the officer provide license to the person otherwise not so that no accidents happen on the road.
