Which of the following is not a superclass/subclass relationship?
a. Employee/Hourly Employee.
b. Vehicle/Car.
c. Sailboat/Tugboat.
d. None of the above.
c. Sailboat/Tugboat.
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Which of the following statements is false?
a. You cannot prevent client code from creating objects of a class. b. One common use of a private constructor is sharing initialization code among a class’s other constructors. c. Another common use of private constructors is to force client code to use so-called “factory methods” to create objects. d. A factory method is a public static method that creates and initializes an object of a specified type (possibly of the same class), then returns a reference to it.
Which of the following is not a tool on the default Ultimate Paint toolbar?
(a) Undo last action. (b) Hand. (c) Draw curve. (d) Aerosol.
A ____ server is a machine that is placed in the DMZ to attract hackers and direct them away from the servers being protected.
A. flytrap B. DNS server C. honeypot D. bastion host
In the following code for the find method, what is the missing code?
def find(self, item): def recurse(node): if node is None: return None elif item == node.data:
A. return node.data B. return self.data C. return recurse(node.root) D. return node.root