Answer:
The correct answer is BC → A, A does not hold over S. we noticed the tuples (1 ,2 ,3 ) and (4 ,2 ,3) which can hold over S)
Explanation:
Solution
No, since in this case the instance of S is provided. so such particular dependencies are unable to breach through such instance, but unable to tell which the dependencies hold towards S.
A functional dependency holds towards only when a relation forms a statement regarding the complete allowed instances of relation.
Hello,
Well my advice for Sara when using the web would be 3 things.
1: Never tell anyone where you live,Your name, Or any other personal information.
This is important as it will keep you safe and others that are in your family.
2: Get anti virus hardware on your devise.
This will help to stop bad people, and bugs/glitches,this will also protect you from information thieves.
3: Make sure to keep your passwords saved on paper.
I know a lot of people use, google(ect.) to save there passwords to make everything easy, but a good way to never loss them is to wright them down.
Have a great day!
Answer:C)User interface
Explanation: User interface(UI) is the interaction phase of the user or programmer with the computer system and network. This phase helps the user to connect with the operating system function and let them process it according to the requirement. Example-monitor , keyboard, mouse etc.
Other options that are given are incorrect because operating system is the system that is part of the interface , information is the data and storage is for the storing of data,.Thus the correct option is option(C)
Nested
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