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stepladder [879]
2 years ago
8

In Java, a reference variable is ________ because it can reference objects of types different from its own, as long as those typ

es are related to its type through inheritance.
Computers and Technology
1 answer:
grandymaker [24]2 years ago
5 0

Answer:

polymorphic

Explanation:

An example of polymorphic reference, suppose you have 3 classes: Main, Product and SpecificProduct. If SpecificProduct extends Product this means it is a product class but with something else to complement.

Say you want to reference an object of product in the main class, you can do it the classic way:

Product pd = new Product();

Or you can do it polymorphic, like this:

Product pd = new SpecificProduct();

The program will accept just fine because SpecificProduct is extending Product. When you do it like this, we say the reference you made was a polymorphic reference

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A ____ is a key-dependent, one-way hash function that allows only specific recipients(symmetric key holders) to access the messa
Alexxx [7]

Answer: (C) MAC

Explanation:

MAC is stand for the message authentication code and it is one of the key dependent hash function. Message authentication provide the data integrity and also the origin of data authentication.

  • It basically allow the specific recipients known as the holder of the symmetric key.
  • The message authentication code uses the CBC (Cipher block chaining) mode for constructing the MAC algorithm and it also uses the block cipher for the conjunction by using the CBC operations.    

On the other hand, all the options are incorrect as they are not the key dependent hash function.

Therefore, Option (C) is correct.

7 0
3 years ago
1. What is wrong with the following code?
uranmaximum [27]

Answer:

Aye dog I don't know nothing about code, yes its true, but I hope that you get an answer for you!

Explanation:

Facts...

5 0
3 years ago
If someone wouldn’t mind answering the first question for me
kompoz [17]

1.

  • Keep the title bold
  • <u>Underline</u> important statements
  • Colour the words (but the document shouldn't be too colourful)
8 0
3 years ago
Aaron bought a photo-editing software package for personal use. He makes two copies of the software, in case the original softwa
Korvikt [17]

Aaron's action is considered legal, as you are allowed to make a backup copy of a legal copy of a software, but it can only be used in case the original software is destroyed or unusable.

5 0
3 years ago
Write a sentence that describes how a series circuit works.
Lorico [155]

Answer:

In a series connection, the current is the same through each component regardless of any kind of components are used or their values. The voltage drops across each component in the circuit are dependent upon the values of the components used in the circuit. Another way to view a series connection is that the positive end of each component is connected to the negative end of the previous component in a 'one after the other' arrangement. The negative end of each component is also connected to the positive end of the next component.

It is one of which every component is arranged in a series connection. Hence series circuit will have same current at all points of the circuit. The voltage drop across each component in the circuit adds up to sum of voltage source across each component and of an equivalent component value. Breaking of the series circuit will make entire circuit to stop working. Suppose consider the three bulbs are connected in series connection and if even one bulb burns out or broken then all the three bulbs will stop working as well. In series circuit components like current (I) is sum of all the element and Voltage is sum of all the voltage drops and resistance is the sum of individual resistances.

Explanation:

3 0
3 years ago
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