When the number of references to an object becomes , that object is marked for garbage collection.

a) low
b) zero
c) one
d) None of the above


b) zero

Computer Science & Information Technology

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Which of the following statements is false?

a. In Java SE 8, an interface may declare default methods—that is, public methods with concrete implementations that specify how an operation should be performed. b. When a class implements an interface, the class receives the interface’s default concrete implementations if it does not override them. c. When you enhance an existing interface with default methods—any class that implemented the original interface will break. d. With default methods, you can declare common method implementations in interfaces (rather than abstract classes), which gives you more flexibility in designing your classes.

Computer Science & Information Technology

Answer the following statements true (T) or false (F)

1. A logic bomb is the event or condition that determines when the payload is activated or delivered. 2. Many forms of infection can be blocked by denying normal users the right to modify programs on the system. 3. A macro virus infects executable portions of code. 4. E-mail is a common method for spreading macro viruses. 5. In addition to propagating, a worm usually carries some form of payload.

Computer Science & Information Technology

The __________ in a binary tree is similar to the head pointer in a linked list.

a. root pointer b. leaf pointer c. null pointer d. binary pointer e. None of these

Computer Science & Information Technology

SQL Server 2012 stores the majority of configuration values within one of the user databases that was created automatically during installation.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology