Changing the configuration of a database falls under which category of databaseâ administration?
d. operation
Answer:
Polymorphism
Explanation:
You can have a basic button class that gets inherited by other classes.
class Button {
function pushButton(){}
}
class ElevatorButton extends Button{};
class BigRedButton extends Button{};
With these new classes, they inherit from the basic button class. They can decide what happens when the method pushButton() is called.
You don't need to worry about what pushButton() actually does, you can just call it if the object is of the type "Button" and you can expect it to work.
It sounds like you are looking for a network. If a node can not find a network to connect to, then it cannot connect.
The command is Merge & Center
This command could be easily found in the toolbar of your excel.
If you execute this command in two different cells, those cells will be merged into one larger cell and the content in that cells will be placed exactly in the middle of the combined cell (measures according to combined cells' length)
The correct answer is option D.
i.e. graphic user interface allows users to control software operations by clicking and pointing with a mouse.
GUI is a type of interface that allows the user to interact through computer graphics.
