Traditional landline telephones use ________, which is a dedicated connection between two points that remains active for the duration of transmission
A) packet switching
B) an open circuit
C) circuit switching
D) a closed circuit
C
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Polymorphism is when ________ in a class hierarchy perform differently, depending upon the class of the object making the call.
A) base class constructors B) derived class destructors C) member functions D) derived class constructors E) None of the above
The default equals implementation of class Object determines:
a. whether two references refer to the same object in memory. b. whether two references have the same type. c. whether two objects have the same instance variables. d. whether two objects have the same instance variable values.
Which of the following is false?
a. Since BigInteger is not a primitive type, we can’t use the arithmetic, relational and equality operators with BigIntegers. b. BigInteger method compareTo compares the BigInteger number that calls the method to the method’s BigInteger argument, and returns -1 if the BigInteger that calls the method is less than the argument, 0 if they’re equal or 1 if the BigInteger that calls the method is greater than the argument. c. The value 1 can be implicitly converted to a BigInteger. d. BigInteger can represent integer values larger than what primitive type long can represent.
The maximum allowable number of array dimensions in many programming languages, including C# and Visual Basic, is ____________________.
Fill in the blank(s) with the appropriate word(s).