A functional dependency describes a relationship between the attributes of an entity such that the value of one attribute is dependent on the value of some other attribute and is very well affected by it.
There can be various sources of information that define functional dependency. For instance, an attribute age can define the functional dependency with the attribute ID. One cannot include the voter ID if they are not above 18 years of age.
Similarly, the attribute date of joining can define the functional dependency with the attribute experience, as the experience in a particular organization can be calculated by subtracting the joining date fro the current date.
Answer:
Modern technology has developed
Explanation:
The development of technology may draw upon many fields of knowledge, including scientific, engineering, mathematical, linguistic, and historical knowledge, to achieve some practical result. ... For example, science might study the flow of electrons in electrical conductors by using already-existing tools and knowledge.
Answer:
B.a high school diploma and some training
Explanation:
Undoubtedly, NSA professional requires limited education, and a high school diploma is enough for them. However, they will need some training related to security services as well. and only then they will be able to work as an NSA professional. Hence, having only a high school diploma is not enough, and the certificate will also not work. However, they also do not need a bachelor's degree. And they definitely need a high school diploma and some training. That is certainly going to be enough for becoming an NSA professional.
Answer:
Answered below
Explanation:
A business such as an online store like Amazon can collect user data like name, address, mouse clicks on products, how long users stay on page viewing a particular product, marital status, education and many more.
These data are used by these businesses to drive decision-making that enhances the sale of their goods. For instance, adverts and search alternatives about a particular good can be shown to people who have looked at them before. A newly married or pregnant woman would be shown baby products etc.
