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.
Answer:
Option D is correct.
Explanation:
The Digital Revolution applies to technological improvements from optical automated and mechanical machines to that of the digital technology that is currently accessible. The era began well into the year of 1980s, and continues. That Digital Revolution still marked as the start of the Era of Info.
- It's the evolution of electrical and analog to digital technologies.
- Its the advent of digital technologies has also altered the manner of people communication.
- The following things are only done through computers, cellphones, as well as the web.
Answer:
If one or more of the shared sites go down, then there is a good chance that your site will go down as well.
Explanation:
Shared web hosting is a form of web hosting service whereby more than one websites are placed on a single web server that connects to the internet.
Though it is cheaper, it has various problems. And over time, it has been concluded that the major problem associated with shared web hosting is the security issue.
This implies that "If one or more of the shared sites go down, then there is a good chance that your site will go down as well."
Some other problems associated with Shared web hosting are poor value, less flexibility, none advanced features, slow service, less support.
Answer:
Embedded Operating System.
Explanation:
Embedded OS (also called Real Time Operating System) is designed to perform a single purpose in devices that may or may not be computers that have very little computer power and little RAM size such as washing machines, ATM, media player, automobiles, and cameras. Examples of such embedded operating system are iOS(used in Apple's mobile devices), Symbian, Palm OS and Window OS.
Since they are used in single-purpose computers, they handle and perform their tasks with so much efficiency.
<em>Hope this helps!</em>
