Answer:
where are the options ..... to select
Answer:
here are three basic categories for fire alarm panel signals: trouble, supervisory, and alarm. Trouble Signal. A trouble signal is typically designated by a yellow light and means that there is an operational issue. For some more advanced systems, the panel may indicate the kind of problem and where it is located.
Explanation:
Explanation:
Electric devices, such as lights and household appliances, change electric current to other forms of energy. For example, an electric stove changes electric current to thermal energy. ... A message encoded this way is called an electronic signal, and the use of electric current for this purpose is called electronics
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Answer:
(c) the dynamic type of reference will determine which of the methods to call.
Explanation:
Polymorphism in Object Oriented Programming typically means the same method name can cause different actions depending on which object it is invoked on. Polymorphism allows for dynamic binding in that method invocation is not bound to the method definition until the program executes.
So in the case of Animal superclass and Mammal subclass, both having a method called eat() with identical signatures and return types, depending on which reference, the correct method eat() will be called dynamically upon execution.
For example, if we have the following;
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<em>Mammal mammal = new Animal();</em>
<em>mammal.eat()</em>
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The eat() method that will be called is the one in the Mammal subclass.
However, if we have;
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<em>Animal animal = new Animal();</em>
<em>animal.eat()</em>
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The eat() method of the Animal superclass will be called.
Answer:
The metric column basically indicate the cost of the route in the routing table and also decide correct route in the routing table.
In the routing table, the lowest metric route is more preferable route as compared to others. In the networking, the routing table is basically used to store the data or information in the form of table in the router.
In the computer network, the routes are listed for the particular destination in which the routes are basically associate that particular routes.