Today, Computer Networks Communicate Via ______ Signals; Originally, the US

question 48

Multiple Choice

Today, computer networks communicate via ______ signals; originally, the US public telephone system was a(n) _________ network.

• A) analog; digital
• B) analog; fiber
• C) digital; analog
• D) digital; fiber

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Definitions:

Base Class

A class from which other classes are derived.

Instance Variables

Variables defined in a class for which each instantiated object of the class has its own copy.

Final Modifier

A keyword in Java indicating that a variable cannot be reassigned, a method cannot be overridden, or a class cannot be inherited.

Derived Class

In OOP, it is a class that extends another class, inheriting its methods and properties, allowing for polymorphism and code reuse.